Hamilton Standard Service Bulletins

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Hamilton Standard Service Bulletins

HS-SPEC MANUALS AND RESOURCES AVAILABLE WITH MEMBERSHIP (529 documents)

Spinner Installation on 43E60 Propellers on DC-6 Aircraft
Spinner Installation on 43E60 Propellers on DC-6 Aircraft
27-Nov-1956
No. 465
Stop Lever Rework
Stop Lever Rework
21-Dec-1953
No. 273A
Auxiliary Check Valve, Ref 842
Auxiliary Check Valve, Ref 842
19-Feb-1951
No. 204
Marking of Propeller Serial Number
Marking of Propeller Serial Number
27-Mar-1956
No. 400
Dimpling Spinner Front Bulkhead Rivet Holes
Dimpling Spinner Front Bulkhead Rivet Holes
7-Mar-1956
No. 392
"E" Shank Size Aluminum Blade Packing Washer ID Increase
"E" Shank Size Aluminum Blade Packing Washer ID Increase
26-Mar-1957
No. 488
Dome Cap and Lever Sleeve Bushing Fit
Dome Cap and Lever Sleeve Bushing Fit
20-May-1957
No. 496
Drum-Type Slip Ring Assembly Waterproofing
Drum-Type Slip Ring Assembly Waterproofing
27-June-1956
No. 416A
Barrel Support Insert Selection
Barrel Support Insert Selection
10-Nov-1959
No. 598
Summary of Changes and Procedures Affecting Propeller Cold Weather Operation
Summary of Changes and Procedures Affecting Propeller Cold Weather Operation
14-July-1955
No. 359
Control Switch Plunger Wear Repair
Control Switch Plunger Wear Repair
27-Sept-1956
No. 459
Constant Speed Control Input Sleeve Retention Change
Constant Speed Control Input Sleeve Retention Change
29-July-1953
No. 263
Strengthened Governor Bodies
Strengthened Governor Bodies
27-Aug-1956
No. 452
Mechanically Attached Boot for 77680 Switches
Mechanically Attached Boot for 77680 Switches
9-Dec-1954
No. 335
Operating Restrictions and Rework for 23E50/6801-54S Propellers on R-2800-83AM10 Powered Lockheed-Vega PV-1 Aircraft
Operating Restrictions and Rework for 23E50/6801-54S Propellers on R-2800-83AM10 Powered Lockheed-Vega PV-1 Aircraft
27-Sept-1956
No. 458
Steel Blade Core Area Button Testing
Steel Blade Core Area Button Testing
6-Jan-1954
No. 288
22D30 Distributor Leakage Specification Change
22D30 Distributor Leakage Specification Change
24-Dec-1957
No. 537
5U21 Constant Speed Control Forged Bodies and Bases
5U21 Constant Speed Control Forged Bodies and Bases
11-Sept-1958
No. 567
Model 3-C Electric Head, Ref 459
Model 3-C Electric Head, Ref 459
31-July-1945
No. 101
Aluminum Blade Corrosion
Aluminum Blade Corrosion
17-Aug-1956
No. 385B
Mechanically Retained External Control Switch Boot
Mechanically Retained External Control Switch Boot
6-April-1953
No. 251
Dome Piston Wall Thickness
Dome Piston Wall Thickness
17-April-1956
No. 409
Dual Feathering Line System
Dual Feathering Line System
26-Feb-1957
No. 487
Servo Piston Locking Holes
Servo Piston Locking Holes
17-April-1956
No. 402
Modifications of Auxiliary Check Valves Used with Four Flyweight Controls
Modifications of Auxiliary Check Valves Used with Four Flyweight Controls
26-Nov-1956
No. 448A
Anodized Aluminum Dome Shells
Anodized Aluminum Dome Shells
20-Feb-1959
No. 588
Automatic Reversing and Unreversing System, Ref 600
Automatic Reversing and Unreversing System, Ref 600
20-Nov-1947
No. 138
Propeller Equipment Redesignation
Propeller Equipment Redesignation
13-Feb-1953
No. 238
End Cap Lock Wire Change
End Cap Lock Wire Change
20-June-1958
No. 479A
Penetrant Inspection of Constant Speed Control Housings
Penetrant Inspection of Constant Speed Control Housings
26-Feb-1957
No. 486
Revised Blade Repair Dimensional Tables
Revised Blade Repair Dimensional Tables
14-Nov-1958
No. 552B
Shot-Peening Stop Levers
Shot-Peening Stop Levers
7-Nov-1955
No. 352A
Functional Test for Solenoid Valve, Ref 666
Functional Test for Solenoid Valve, Ref 666
30-Oct-1948
No. 157
Constant Speed Control Electric Head Receptacle Change
Constant Speed Control Electric Head Receptacle Change
10-Feb-1959
No. 505C
Blade Cam Modification, Ref 932
Blade Cam Modification, Ref 932
25-Sept-1952
No. 230
Inspection and Rework of 2J17 & 2H17 Type Steel Blades
Inspection and Rework of 2J17 & 2H17 Type Steel Blades
25-Feb-1957
No. 415A
De-Icing Assembly Receptacle Change
De-Icing Assembly Receptacle Change
26-April-1954
No. 296
Lead Wire Change on 5U18 Constant Speed  Control Electric Head Receptacle
Lead Wire Change on 5U18 Constant Speed Control Electric Head Receptacle
11-April-1958
No. 547
Steel Blade Torque Application, Ref 787
Steel Blade Torque Application, Ref 787
31-Jan-1950
No. 187
Dome Cap and Lever Sleeve Bushing Fit
Dome Cap and Lever Sleeve Bushing Fit
22-May-1957
No. 496B
New Spinner Nose Support Rubber Bushing
New Spinner Nose Support Rubber Bushing
5-June-1958
No. 555
33E60 Propeller Retaining Nut Lock Ring, Ref 502
33E60 Propeller Retaining Nut Lock Ring, Ref 502
8-Dec-1949
No. 107
Synchronizer Changes, Ref 895
Synchronizer Changes, Ref 895
18-Feb-1952
No. 218
Fit of Blade Packing Nut, Ref 495
Fit of Blade Packing Nut, Ref 495
2-April-1946
No. 106
Warning Decals on De-Icer Assemblies, Ref 685
Warning Decals on De-Icer Assemblies, Ref 685
30-Nov-1948
No. 161
Rework of 33E60 Barrel Supports to Provide Adjustment for Wear
Rework of 33E60 Barrel Supports to Provide Adjustment for Wear
7-Sept-1956
No. 450
New Spinner Nose Brushing Support Assembly
New Spinner Nose Brushing Support Assembly
16-Mar-1956
No. 397
Results of a Propeller Vibration Stress Resurvey Conducted on a United Air Lines DC-6B Airplane with 43E60/6895-8 Propellers
Results of a Propeller Vibration Stress Resurvey Conducted on a United Air Lines DC-6B Airplane with 43E60/6895-8 Propellers
9-Dec-1954
No. 334
Seating of Low Pitch Stop Wedge
Seating of Low Pitch Stop Wedge
26-Mar-1953
No. 249
Lever Sleeve Sludge Clearance Holes
Lever Sleeve Sludge Clearance Holes
7-May-1956
No. 271A
Interchanging Barrel Bolt Locations
Interchanging Barrel Bolt Locations
5-Mar-1953
No. 239
Electric Head Leak Test, Ref 839
Electric Head Leak Test, Ref 839
19-Feb-1951
No. 203
Boot Leak Test, Ref 799
Boot Leak Test, Ref 799
10-April-1950
No. 190
Oversize Intermediate Gear Studs for Type 5 Electric Heads
Oversize Intermediate Gear Studs for Type 5 Electric Heads
7-June-1954
No. 306
Adapter Retaining Screws, Ref 891
Adapter Retaining Screws, Ref 891
28-Jan-1952
No. 217
Propeller Pitch Lock Bleed Valve Modification
Propeller Pitch Lock Bleed Valve Modification
21-Feb-1958
No. 539A
Solenoid Valve Modification, Ref 775
Solenoid Valve Modification, Ref 775
27-Dec-1949
No. 184
Control Shaft Seal, Ref 886
Control Shaft Seal, Ref 886
19-Nov-1951
No. 216
Oversize Control Shuttle Valve Plungers
Oversize Control Shuttle Valve Plungers
27-Aug-1956
No. 451
Fairing Cut-Back on 2H17AC3-48R Blades
Fairing Cut-Back on 2H17AC3-48R Blades
5-Oct-1956
No. 466
Shot-Peening Stop Levers
Shot-Peening Stop Levers
20-June-1955
No. 352
Discontinuation of Copper Plating Piston Sleeves
Discontinuation of Copper Plating Piston Sleeves
10-Sept-1954
No. 315
Code Marking of Stop Levers
Code Marking of Stop Levers
27-Aug-1956
No. 153
Removal of Transfer Tube Check Valve, Ref 641
Removal of Transfer Tube Check Valve, Ref 641
20-April-1948
No. 149
New Barrel Supports for 43D50 Propellers
New Barrel Supports for 43D50 Propellers
17-May-1956
No. 421
RPM Sensitive Hydraulic Pitch Lock for 43E60 and 43H60 Propellers
RPM Sensitive Hydraulic Pitch Lock for 43E60 and 43H60 Propellers
7-May-1957
No. 472A
Operating Recommendations & Barrel Rework for 33E60 Propellers with 6491-0 & 6801-0 Blades on C-82 Aircraft with R-2800 Engines
Operating Recommendations & Barrel Rework for 33E60 Propellers with 6491-0 & 6801-0 Blades on C-82 Aircraft with R-2800 Engines
15-Jan-1962
No. 628
Wedge Retraction Snap Ring Fit
Wedge Retraction Snap Ring Fit
9-Dec-1954
No. 336
Servo Valve Spring Displacement
Servo Valve Spring Displacement
5-May-1958
No. 553
Adding Radii to 43E60 and 43H60 Stationary Cam Dowel Hole
Adding Radii to 43E60 and 43H60 Stationary Cam Dowel Hole
18-April-1961
No. 627
Modification of 43D50 Piston to Provide Replaceable Cam Roller Thrust Washers
Modification of 43D50 Piston to Provide Replaceable Cam Roller Thrust Washers
23-July-1957
No. 519
Reversing Type Double-Acting Governors Service Bulletin
Reversing Type Double-Acting Governors Service Bulletin
19-July-1946
Service Bulletin No. 108
Cement Curing Requirements
Cement Curing Requirements
25-Feb-1954
No. 290
Improved Retention for Brush Block Bracket Cover Receptacle
Improved Retention for Brush Block Bracket Cover Receptacle
17-April-1956
No. 405
Dalic Zinc Plating the Garter Area on 2J17Z3-8W Blades
Dalic Zinc Plating the Garter Area on 2J17Z3-8W Blades
31-Oct-1957
No. 530
Dome Cap Thickness Inspection
Dome Cap Thickness Inspection
20-July-1953
No. 267
Constant Speed Control High Pressure Valve Assembly Modification
Constant Speed Control High Pressure Valve Assembly Modification
20-June-1955
No. 354
Nylon Tipped Bleed Valve Plungers for Pitch Lock Propellers
Nylon Tipped Bleed Valve Plungers for Pitch Lock Propellers
12-July-1957
No. 512
Double Acting Control Contamination and Effect
Double Acting Control Contamination and Effect
29-May-1957
No. 509
Pitch Lock Propeller Servo Valve Seal Back-Up Rings
Pitch Lock Propeller Servo Valve Seal Back-Up Rings
6-May-1960
No. 615
Maintenance of Steel Blades
Maintenance of Steel Blades
8-July-1954
No. 302
Oversize Low Pressure Relief Valves for 5U18 Controls
Oversize Low Pressure Relief Valves for 5U18 Controls
17-Nov-1955
No. 377
Propeller Retaining Nut Free Fit on Engine Shaft
Propeller Retaining Nut Free Fit on Engine Shaft
27-Feb-1956
No. 381
Solenoid Valve Assembly 321475
Solenoid Valve Assembly 321475
10-Sept-1954
No. 312
Electric De-Icing Assembly Modifications, Ref 757
Electric De-Icing Assembly Modifications, Ref 757
1-Sept-1949
No. 179
Blade Preloading Screws for Steel Blade Propellers, Ref 620
Blade Preloading Screws for Steel Blade Propellers, Ref 620
20-Feb-1948
No. 143
Differential Motor Wiring Change, Ref 736
Differential Motor Wiring Change, Ref 736
30-Mar-1949
No. 173
Change of Servo Valve Spring Length
Change of Servo Valve Spring Length
23-Jan-1959
No. 548B
Oversize Dowel Pins for Hydromatic Constant Speed Controls
Oversize Dowel Pins for Hydromatic Constant Speed Controls
18-June-1957
No. 501A
"E" Size Wedge Insert Type Servo Piston Shaft Inspection
"E" Size Wedge Insert Type Servo Piston Shaft Inspection
31-Dec-1953
No. 287
Aluminum Blade Corrosion
Aluminum Blade Corrosion
6-Jan-1956
No. 385
Results of a Propeller Vibration Stress Resurvey Conducted on a United Air Lines DC-6B Airplane with 43E60/6895-8 Propellers
Results of a Propeller Vibration Stress Resurvey Conducted on a United Air Lines DC-6B Airplane with 43E60/6895-8 Propellers
27-Feb-1956
No. 334A
New Shuttle Valve Sleeve in Four Flyweight Controls
New Shuttle Valve Sleeve in Four Flyweight Controls
7-Nov-1956
No. 447A
Control Brush Wear Limit
Control Brush Wear Limit
20-Sept-1954
No. 319
Model 4U18 and 5U18 Control Drive Gear Shaft Change
Model 4U18 and 5U18 Control Drive Gear Shaft Change
27-Feb-1956
No. 394
Spinner Front Bulkhead Support Ring
Spinner Front Bulkhead Support Ring
30-Aug-1954
No. 310
Dome Cap Installation Procedure
Dome Cap Installation Procedure
22-Aug-1957
No. 497A
Reversing Circuit Modification, Ref 927
Reversing Circuit Modification, Ref 927
15-Sept-1952
No. 228
Control Brush Pad Retention Change
Control Brush Pad Retention Change
28-May-1956
No. 431
Decrease in Outboard Relief Valve Pressure, Ref 537
Decrease in Outboard Relief Valve Pressure, Ref 537
14-Feb-1947
No. 118
Flickering of RPM Limit Lights, Ref 657
Flickering of RPM Limit Lights, Ref 657
30-July-1948
No. 155
Roller Bearing Assembly Lubrication
Roller Bearing Assembly Lubrication
16-Mar-1953
No. 247
Thinner Servo Piston Sealing Rings
Thinner Servo Piston Sealing Rings
21-April-1960
No. 614
Supersedure of Constant Speed Control Auxiliary Pressure Valve
Supersedure of Constant Speed Control Auxiliary Pressure Valve
20-July-1953
No. 270
Slip Ring Assembly Modification, Ref 945
Slip Ring Assembly Modification, Ref 945
27-Oct-1952
No. 233
Spinner Installation on 43E60 Propellers on DC-6 Aircraft
Spinner Installation on 43E60 Propellers on DC-6 Aircraft
14-Mar-1958
No. 465B
Steel Blade Abrasion Repair Information
Steel Blade Abrasion Repair Information
16-Mar-1953
No. 245
Additional Counterweights for Propeller Balance
Additional Counterweights for Propeller Balance
9-Oct-1953
No. 277
Dome Cap Installation Procedure
Dome Cap Installation Procedure
20-Mar-1957
No. 497
Installation of Teflon Foil on Aluminum Blade Shanks
Installation of Teflon Foil on Aluminum Blade Shanks
7-May-1956
No. 414
Application of Blade Alignment Indicator Gage HS 8250, HS 8350, and HS 8550
Application of Blade Alignment Indicator Gage HS 8250, HS 8350, and HS 8550
31-Dec-1963
No. 631
Oil Hole Plug Leakage in 4U18 and 5U18 Controls
Oil Hole Plug Leakage in 4U18 and 5U18 Controls
28-Mar-1958
No. 528A
Auxiliary Pump Bleed Valve Closing Pressure Change
Auxiliary Pump Bleed Valve Closing Pressure Change
7-June-1957
No. 510
Steel Blade Internal Moisture Check
Steel Blade Internal Moisture Check
27-April-1953
No. 259
22D Model Propellers-Inverted Cams, Ref 726
22D Model Propellers-Inverted Cams, Ref 726
18-Feb-1949
No. 170
Adjustment of De-Icer Timer Cycles, Ref 617
Adjustment of De-Icer Timer Cycles, Ref 617
10-Feb-1948
No. 142
Dome Piston Seal Groove Dimension Change
Dome Piston Seal Groove Dimension Change
23-Sept-1959
No. 600
Oversize Dowel Pins for Hydromatic Constant Speed Controls
Oversize Dowel Pins for Hydromatic Constant Speed Controls
25-April-1957
No. 501
Baffled Type Control Mounting Gasket Replacement
Baffled Type Control Mounting Gasket Replacement
18-June-1957
No. 467A
Disposition of Aluminum Bladed Propellers Having Experienced Impact
Disposition of Aluminum Bladed Propellers Having Experienced Impact
13-Aug
No. 596
22D Sealing Compound, Ref 950
22D Sealing Compound, Ref 950
24-Dec-1952
No. 235
Installation of Teflon Foil on Aluminum Blade Shanks
Installation of Teflon Foil on Aluminum Blade Shanks
26-Mar-1957
No. 414A
De-Icing Assembly Rivet Change, Ref 940
De-Icing Assembly Rivet Change, Ref 940
25-Sept-1952
No. 232
Larger Radius Fillet Between Fairing Butt and Shank Molding on 23260 Propellers
Larger Radius Fillet Between Fairing Butt and Shank Molding on 23260 Propellers
16-Nov-1956
No. 454A
Modification of Low Pitch Stop Lever Assemblies, Ref 645
Modification of Low Pitch Stop Lever Assemblies, Ref 645
19-June-1948
No. 151
Control Switch Boot for Low Temperature Operation
Control Switch Boot for Low Temperature Operation
17-April-1956
No. 406
Cold Weather Reversing Operation, Ref 701
Cold Weather Reversing Operation, Ref 701
10-Dec-1948
No. 164
Reverse Dump Valve Rate of Flow Change
Reverse Dump Valve Rate of Flow Change
10-Sept-1954
No. 313
Fluid De-Icing Bracket and Nozzle Assembly Modification
Fluid De-Icing Bracket and Nozzle Assembly Modification
27-April-1953
No. 257
Control Base Rework to Accommodate 3/8 Inch Governor Mounting Studs
Control Base Rework to Accommodate 3/8 Inch Governor Mounting Studs
21-Oct-1959
No. 542B
Wire Element Heaters
Wire Element Heaters
17-Feb-1956
No. 389
Feather Lock Application on 43E60 Propellers
Feather Lock Application on 43E60 Propellers
7-May-1957
No. 502
Procedure to be Followed in the Event of a Runaway Propeller, Ref 569
Procedure to be Followed in the Event of a Runaway Propeller, Ref 569
31-July-1947
No. 127
Synchronizer and Control Pulley Modification
Synchronizer and Control Pulley Modification
19-Feb-1960
No. 608
Constant Speed Control Relief Valve Setting Increase
Constant Speed Control Relief Valve Setting Increase
20-June-1955
No. 342A
Chrome Plating of Worn Stepmotor Shafts Used with Needle Bearings
Chrome Plating of Worn Stepmotor Shafts Used with Needle Bearings
27-Nov-1959
No. 607
43H60 Propeller Retaining Nut Clearance and Barrel Seal Change
43H60 Propeller Retaining Nut Clearance and Barrel Seal Change
7-May-1956
No. 418
New Stop Lever End Cap, Ref 697
New Stop Lever End Cap, Ref 697
10-Dec-1948
No. 163
Simplified Disconnect for Steel Blade De-Icers
Simplified Disconnect for Steel Blade De-Icers
17-April-1956
No. 407
Varnish Application on Control Switch Terminal Stud
Varnish Application on Control Switch Terminal Stud
9-Oct-1953
No. 282
New Design Head Clamp Ring and Body for Double-Acting Governor, Ref 561
New Design Head Clamp Ring and Body for Double-Acting Governor, Ref 561
16-June-1947
No. 125
2H17AC3 Blade Operational Life
2H17AC3 Blade Operational Life
3-July-1958
No. 559
43D Barrel Support, Ref 899
43D Barrel Support, Ref 899
18-Feb-1952
No. 220
Reverse Mechanism Changes, Ref 883
Reverse Mechanism Changes, Ref 883
19-Nov-1951
No. 215
Electric De-Icer Brushes, Ref 715
Electric De-Icer Brushes, Ref 715
20-Jan-1949
No. 168
Model 43D and 34D Propeller Service Repair Procedure Changes
Model 43D and 34D Propeller Service Repair Procedure Changes
17-April-1956
No. 404
Blade Fillet Rework
Blade Fillet Rework
9-Oct-1953
No. 276
Low Pitch Solenoid Valve Armature Oscillation
Low Pitch Solenoid Valve Armature Oscillation
11-Sept-1953
No. 265A
Synchronizer Modifications
Synchronizer Modifications
27-April-1956
No. 408
Corrosion Under Blade Seals, Ref 535
Corrosion Under Blade Seals, Ref 535
15-Jan-1947
No. 117
Return to Factory of Blades Requiring Re-Cold Working
Return to Factory of Blades Requiring Re-Cold Working
15-Sept-1960
No. 622
Improved Stop Screw Bracket Assembly Retention on 5U21 Control Electric Heads
Improved Stop Screw Bracket Assembly Retention on 5U21 Control Electric Heads
6-Mar-1959
No. 589
Cam Roller Assembly, Ref 777
Cam Roller Assembly, Ref 777
27-Dec-1949
No. 185
CAA Publications Approval
CAA Publications Approval
17-Oct-1958
No. 570
Reaming of Ball Loading Holes
Reaming of Ball Loading Holes
26-Mar-1953
No. 250
Black Paint Removal from Steel Blades
Black Paint Removal from Steel Blades
5-Mar-1953
No. 240
New Lock Clip on Low Pitch Stop Assembly End Cap
New Lock Clip on Low Pitch Stop Assembly End Cap
18-Oct-1957
No. 526
Potted Stators in 5U18 Head Assemblies
Potted Stators in 5U18 Head Assemblies
17-Dec-1956
No. 480
New Synchronizer Differential Motor, Ref 652
New Synchronizer Differential Motor, Ref 652
19-June-1948
No. 153
Solenoid Valve Doubler, Ref 834
Solenoid Valve Doubler, Ref 834
26-Jan-1951
No. 202
Shot-Peening Segmental Gears
Shot-Peening Segmental Gears
25-Feb-1954
No. 291
Piston Sleeve Wear Limits
Piston Sleeve Wear Limits
16-Mar-1953
No. 242
Control Base Rework to Accommodate 3/8 Inch Governor Mounting Studs
Control Base Rework to Accommodate 3/8 Inch Governor Mounting Studs
25-Mar-1959
No. 542A
Glass Fiber Chafing Rings, Ref 517
Glass Fiber Chafing Rings, Ref 517
8-April-1949
No. 112
Blade Heaters, Ref 829
Blade Heaters, Ref 829
26-Jan-1951
No. 201
Service Manual 165 Correction
Service Manual 165 Correction
6-April-1953
No. 254
Cold Weather Operation of Reversing Hydromatic Propellers
Cold Weather Operation of Reversing Hydromatic Propellers
11-Feb-1955
No. 343
Dome Insulating Covers
Dome Insulating Covers
29-Aug-1955
No. 364
Rework of Stepmotor Electric Heads, Ref 593
Rework of Stepmotor Electric Heads, Ref 593
30-Sept-1947
No. 134
Reverse Dump Valve Supplement, Ref 863
Reverse Dump Valve Supplement, Ref 863
14-June-1951
No. 209
Modification for Low Pitch Stop Lever Assembly, Ref 678
Modification for Low Pitch Stop Lever Assembly, Ref 678
20-Nov-1948
No. 160
Internal Leakage Check for Reversing Hydromatic Propellers, Ref 661
Internal Leakage Check for Reversing Hydromatic Propellers, Ref 661
20-Sept-1948
No. 156
Spinner Rear Bulkhead Reinforcement
Spinner Rear Bulkhead Reinforcement
20-Sept-1954
No. 323
Poppet Valve and Sleeve Retention in Low Pressure Barrels
Poppet Valve and Sleeve Retention in Low Pressure Barrels
12-Feb-1957
No. 353A
Propeller Balance with Blade Cam Assemblies Installed
Propeller Balance with Blade Cam Assemblies Installed
6-April-1953
No. 253
Nitralloy Bushing for 5U18 and 5U21Control Stepmotor Motor Assemblies
Nitralloy Bushing for 5U18 and 5U21Control Stepmotor Motor Assemblies
10-Feb-1959
No. 585
Piston Sleeve Replacement, Ref 876
Piston Sleeve Replacement, Ref 876
9-Oct-1951
No. 212
Torque of Spinner Nose Support Bolts
Torque of Spinner Nose Support Bolts
26-Nov-1957
No. 533
Additional Wrench Engaging Holes in Low Pitch Stop Assembly End Plates
Additional Wrench Engaging Holes in Low Pitch Stop Assembly End Plates
22-April-1957
No. 500
Barrel Bolt Elongation
Barrel Bolt Elongation
7-June-1954
No. 304
RPM Sensitive Hydraulic Pitch Lock for 34E60 Propellers
RPM Sensitive Hydraulic Pitch Lock for 34E60 Propellers
30-Jan-1956
No. 387
Hydromatic Propellers Model Designation System, Ref 489
Hydromatic Propellers Model Designation System, Ref 489
8-April-1949
No 103
Blade Chafing Ring Part Number Change
Blade Chafing Ring Part Number Change
27-Nov-1957
No. 535
Double Capacity Single-Acting Hydromatic Governor Relief Valve System, Ref 515
Double Capacity Single-Acting Hydromatic Governor Relief Valve System, Ref 515
23-Sept-1946
No. 111
Modification of Magnesium 43D and 23260 Electric De-Icing Assemblies, Ref 707
Modification of Magnesium 43D and 23260 Electric De-Icing Assemblies, Ref 707
30-Dec-1948
No. 166
43E60 Propeller Fluid De-Icing Parts Interference
43E60 Propeller Fluid De-Icing Parts Interference
20-Sept-1954
No. 322
Blade Inspection During Winter Operation, Ref 630
Blade Inspection During Winter Operation, Ref 630
27-Feb-1948
No. 146
Selector Valve Sleeve Change in 5AA22 Controls
Selector Valve Sleeve Change in 5AA22 Controls
19-Feb-1960
No. 609
Feathering Line Filter Rework
Feathering Line Filter Rework
27-June-1958
No. 446A
Synchronizer Wiring Change, Ref 703
Synchronizer Wiring Change, Ref 703
20-Dec-1948
No. 165
Spinner Dome Cap Wall Thickness Increase
Spinner Dome Cap Wall Thickness Increase
8-Nov-1954
No. 326
Early Design Lever Wedge Replacement
Early Design Lever Wedge Replacement
29-Aug-1955
No. 365
Maintenance and Repair of Surface Treated Blades, Ref 636
Maintenance and Repair of Surface Treated Blades, Ref 636
20-April-1948
No. 148
Low Temperature Blade Packing Replacement in Non-Reversing Propellers
Low Temperature Blade Packing Replacement in Non-Reversing Propellers
22-Oct-1958
No. 525B
New Control Drive Gear Bushings and Speeder Springs
New Control Drive Gear Bushings and Speeder Springs
28-Dec-1955
No. 383
Part Number 322641 Speeder Spring Adjusting Rack for Lower RPM Setting
Part Number 322641 Speeder Spring Adjusting Rack for Lower RPM Setting
31-Oct-1957
No. 532
Spinner Nose Section Stiffener Inspection and Rework
Spinner Nose Section Stiffener Inspection and Rework
7-June-1956
No. 430
New Blade Heater for 34E60 Propellers on DC-7 Aircraft
New Blade Heater for 34E60 Propellers on DC-7 Aircraft
29-Mar-1960
Service Bulletin No. 613
Chrome Plating of Electric Head Control Shaft
Chrome Plating of Electric Head Control Shaft
24-June-1957
No. 495
Disposition of Aluminum Bladed Propellers Having Experienced Impact
Disposition of Aluminum Bladed Propellers Having Experienced Impact
17-June-1960
No. 596A
Dome Reinforcement, Ref 880
Dome Reinforcement, Ref 880
29-Oct-1951
No. 214
Reinforcing Sleeve for Model 34D and 43D Propellers, Ref 557
Reinforcing Sleeve for Model 34D and 43D Propellers, Ref 557
16-June-1947
No. 124
New Spiral Retaining Ring, Ref 766
New Spiral Retaining Ring, Ref 766
15-Dec-1949
No. 182
Inspection for Oil Hole Plug Omission in 4U18 and 5U18 Controls
Inspection for Oil Hole Plug Omission in 4U18 and 5U18 Controls
9-Oct-1957
No. 528
Control Head Mounting Directions
Control Head Mounting Directions
16-Mar-1953
No. 243
Four-Flyweight Constant Speed Control Assembly
Four-Flyweight Constant Speed Control Assembly
27-Oct-1955
No. 372
Rubber Cure Date and Rubber Age Control Policy
Rubber Cure Date and Rubber Age Control Policy
1-Oct-1960
No. 624
Code Marking of Stop Levers
Code Marking of Stop Levers
27-Aug-1956
No. 453
Auxiliary Pump Bleed Valve Closing Pressure Change
Auxiliary Pump Bleed Valve Closing Pressure Change
15-April-1958
No. 510A
Toroid Seal Application in Early Model Propellers
Toroid Seal Application in Early Model Propellers
6-Mar-1959
No. 432A
Servo Piston Diameter, Ref 826
Servo Piston Diameter, Ref 826
6-Nov-1950
No. 200
Blade Shank Rework of D Shank Blades, Ref 532
Blade Shank Rework of D Shank Blades, Ref 532
15-Jan-1947
No. 116
Rectangular Cross-Section Dome Piston Seals
Rectangular Cross-Section Dome Piston Seals
1-Nov-1956
No. 464
Revised Blade Repair Dimensional Tables
Revised Blade Repair Dimensional Tables
8-Sept-1959
No. 552C
Control Auxiliary Valve Assembly Plunger Replacement
Control Auxiliary Valve Assembly Plunger Replacement
25-Sept-1959
Service Bulletin No. 599
New Internal Contactor Connector, Ref 694
New Internal Contactor Connector, Ref 694
10-Dec-1948
No. 162
Spinner Retaining Nut Torque on 43D50 Propellers
Spinner Retaining Nut Torque on 43D50 Propellers
26-April-1954
No. 298
Blade Face Alignment Measurements For Revealing Accidental Bending Damage
Blade Face Alignment Measurements For Revealing Accidental Bending Damage
14-Feb-1958
No. 546
Steel Blade Slip Ring Fish Paper Insulation Sheet Changed to Mylar Insulation Sheet
Steel Blade Slip Ring Fish Paper Insulation Sheet Changed to Mylar Insulation Sheet
7-Nov-1956
No. 469
Cementing Terminal Studs in Control Switch Assemblies
Cementing Terminal Studs in Control Switch Assemblies
20-Jan-1956
No. 384
Servo Piston Shaft Inside Diameter Increase
Servo Piston Shaft Inside Diameter Increase
18-Aug-1955
No. 362
Model 23260 Barrel Dimension Changes, Ref 781
Model 23260 Barrel Dimension Changes, Ref 781
27-Dec-1949
No. 186
Lever Sleeve Bushing Rework
Lever Sleeve Bushing Rework
17-Oct-1958
No. 472B
Blade Model 6903 Re-Shotpeening
Blade Model 6903 Re-Shotpeening
14-Feb-1961
No. 625
Operating Recommendations and Barrel Rework for 33E60/6801-6
Operating Recommendations and Barrel Rework for 33E60/6801-6
25-Feb
No. 582
New Type Drive Coupling for Constant Speed Controls Used on B-377 Aircraft
New Type Drive Coupling for Constant Speed Controls Used on B-377 Aircraft
7-May-1956
No. 423
Rear Cone Spacer Assembly
Rear Cone Spacer Assembly
28-May-1956
No. 428
Lubricating Grooves in Control Drive Gear Bushings
Lubricating Grooves in Control Drive Gear Bushings
18-Aug-1960
No. 620
Shank Corrosion on Aluminum Blades
Shank Corrosion on Aluminum Blades
21-May-1957
No. 508
Decrease Pitch Pressure Relief System
Decrease Pitch Pressure Relief System
20-July-1953
No. 264
Quad Ring Seal Installation
Quad Ring Seal Installation
3-April-1957
No. 464A
Application of Blade Alignment Indicator Gage HS-8150
Application of Blade Alignment Indicator Gage HS-8150
27-Oct-1959
No. 602
Salvage Procedures for Blade Support Rings and Barrels
Salvage Procedures for Blade Support Rings and Barrels
6-April-1956
No. 401
22D30 Propeller Cam Indexing, Ref 928
22D30 Propeller Cam Indexing, Ref 928
15-Sept-1952
No. 229
Rebushing of 4U18 & 5U18 Controls on Jig Boring Machine
Rebushing of 4U18 & 5U18 Controls on Jig Boring Machine
7-May-1956
No. 412
Inspection and Repair of Steel Blades, Ref 751
Inspection and Repair of Steel Blades, Ref 751
11-Aug-1949
No. 177
Cam Roller Shaft Tightness
Cam Roller Shaft Tightness
20-June-1955
No. 355
Low Pitch Stop Assembly End Plate Design Change
Low Pitch Stop Assembly End Plate Design Change
17-Aug-1956
No. 449
Modifications of Auxiliary Check Valves Used with Four Flyweight Controls
Modifications of Auxiliary Check Valves Used with Four Flyweight Controls
8-Aug-1956
No. 448
Line Maintenance of Aluminum Alloy Blades
Line Maintenance of Aluminum Alloy Blades
5-April-1957
No. 339C
Cable Harness Application on Control Electric Heads
Cable Harness Application on Control Electric Heads
17-Feb-1959
No. 470A
New Dome-Barrel Seal for Model 22D30 and 22D40 Propellers, Ref 543
New Dome-Barrel Seal for Model 22D30 and 22D40 Propellers, Ref 543
18-Mar-1947
No. 119
Modification of Governor Solenoid Covers
Modification of Governor Solenoid Covers
7-May-1956
No. 420
Disposition of Aluminum Bladed Propellers Having Experienced Overspeed
Disposition of Aluminum Bladed Propellers Having Experienced Overspeed
21-April-1960
No. 597A
Line Maintenance of Aluminum Alloy Blades
Line Maintenance of Aluminum Alloy Blades
25-Oct-1957
No. 339D
Propeller Retaining Nut Torque, Ref 792
Propeller Retaining Nut Torque, Ref 792
20-Mar-1950
No. 188
Constant Speed Control Input Sleeve Retention
Constant Speed Control Input Sleeve Retention
12-Feb-1957
No. 263a
Pitch Lock Housing Retaining Cap Modification, and Salvage of Damaged Caps
Pitch Lock Housing Retaining Cap Modification, and Salvage of Damaged Caps
3-Feb-1958
No. 538
Shot-Peening Constant Speed Control Bases
Shot-Peening Constant Speed Control Bases
19-Dec-1953
No. 346A
Low Pitch Stop De-Sludging
Low Pitch Stop De-Sludging
26-April-1954
No. 300
Dome Cap and Lever Sleeve Bushing Fit
Dome Cap and Lever Sleeve Bushing Fit
22-Jan-1958
No. 496C
Solenoid Valve Washer, Ref 746
Solenoid Valve Washer, Ref 746
11-July-1949
No. 176
Magnetic Inspection, Ref 905
Magnetic Inspection, Ref 905
8-May-1952
No. 222
Inspection of Solenoid Valve Connector Receptacle on 5U18 Controls
Inspection of Solenoid Valve Connector Receptacle on 5U18 Controls
7-June-1956
No. 434
Steel Blade Shank Bore Inspection for Corrosion
Steel Blade Shank Bore Inspection for Corrosion
28-Dec-1955
No. 382
Periodic Propeller Inspection
Periodic Propeller Inspection
15-Sept-1960
No. 329A
Improved Cold Weather Propeller Reversing Operation by Modification of the Low Pitch Stop Assembly
Improved Cold Weather Propeller Reversing Operation by Modification of the Low Pitch Stop Assembly
7-Oct-1955
No. 367
De-Icing Assembly Adapter and Insulator Moisture Proofing
De-Icing Assembly Adapter and Insulator Moisture Proofing
28-May-1953
No. 258
Heater Protective Strips, Ref 851
Heater Protective Strips, Ref 851
2-May-1951
No. 206
Steel Blade De-Icer Inspection
Steel Blade De-Icer Inspection
18-Dec-1955
No. 379
Oversize Selector Valve for Constant Speed Controls
Oversize Selector Valve for Constant Speed Controls
7-June-1954
No. 307
Propeller Control, Ref 806
Propeller Control, Ref 806
24-July-1950
No. 194
2H17 Blade Operational Life
2H17 Blade Operational Life
17-June-1954
No. 305
Constant Speed Control Service Fits and Clearances
Constant Speed Control Service Fits and Clearances
26-May
No. 592
Restrained Pilot Valves in Constant Speed Controls
Restrained Pilot Valves in Constant Speed Controls
13-July-1955
No. 350
Summary of Changes and Procedures Affecting Propeller Piston Life
Summary of Changes and Procedures Affecting Propeller Piston Life
29-Sept-1955
No. 369
Constant Speed Control Drain Passage Restriction Test
Constant Speed Control Drain Passage Restriction Test
19-Sept-1955
No. 366
Reidentification of Blade Shank Teflon Strips and Application Procedure Modification
Reidentification of Blade Shank Teflon Strips and Application Procedure Modification
1-Dec-1958
No. 508C
Test Procedure - Hydraulic Reverse Dump Valve
Test Procedure - Hydraulic Reverse Dump Valve
17-Feb-1956
No. 388
Preload Wrench and Segmental Gear Rework, Ref 730
Preload Wrench and Segmental Gear Rework, Ref 730
21-Mar-1949
No. 172
Oversize Support Bushings in Fluid De-Icing Assemblies
Oversize Support Bushings in Fluid De-Icing Assemblies
17-May-1956
No. 424
New Shuttle Valve Sleeve in Four Flyweight Controls
New Shuttle Valve Sleeve in Four Flyweight Controls
13-Aug-1956
No. 447
Piston Sleeve Wear in Reversing Propellers, Ref 594
Piston Sleeve Wear in Reversing Propellers, Ref 594
30-Sept-1947
No. 135
Servo Valve Pressure Setting Change
Servo Valve Pressure Setting Change
26-May-1958
No. 548A
Control Base Auxiliary Pressure Valve Bore Inspection for Certain 2-Flyweight 5U18 and 4U18 Controls
Control Base Auxiliary Pressure Valve Bore Inspection for Certain 2-Flyweight 5U18 and 4U18 Controls
9-Jan-1958
No. 541
43E60 and 43H60 Low Pressure Barrel Seal Change
43E60 and 43H60 Low Pressure Barrel Seal Change
27-Sept-1956
No. 457
Additional Support on Drum Type De-Icer Bracket Assemblies
Additional Support on Drum Type De-Icer Bracket Assemblies
27-Mar-1956
No. 398
Change of Servo Valve Spring Length
Change of Servo Valve Spring Length
11-April-1958
No. 548
Constant Speed Control Electric Head Receptacle Change
Constant Speed Control Electric Head Receptacle Change
18-Oct-1957
No. 505B
Blade Support Rings, Ref 727
Blade Support Rings, Ref 727
28-Feb-1949
No. 171
Cross Wind Ground Running Restrictions for Two Bladed Propellers on Direct-Drive R-1340 Installations
Cross Wind Ground Running Restrictions for Two Bladed Propellers on Direct-Drive R-1340 Installations
31-Dec-1953
No. 286
Operating Restrictions and Rework for 33E60/6801-6 Propellers on R-2800-34 Powered Curtiss C-46 Aircraft
Operating Restrictions and Rework for 33E60/6801-6 Propellers on R-2800-34 Powered Curtiss C-46 Aircraft
29-Aug-1955
No. 363
Spinner Nose Support Rubber Mounted Bushing Replacement
Spinner Nose Support Rubber Mounted Bushing Replacement
27-Nov-1956
No. 475
Modification of Insulator Sleeve and Spacer, Ref 721
Modification of Insulator Sleeve and Spacer, Ref 721
10-Feb-1949
No. 169
Concentricity Checking Adapter for Splined Type 34E60 Barrels
Concentricity Checking Adapter for Splined Type 34E60 Barrels
31-Oct-1957
No. 531
Rework of Solenoid Valve Mounting Gasket
Rework of Solenoid Valve Mounting Gasket
20-Nov-1957
No. 536
Control Auxiliary Valve Assembly Plunger Replacement
Control Auxiliary Valve Assembly Plunger Replacement
25-Sept-1959
No. 599
Control Base Auxiliary Pressure Valve Housing Bore Chamber
Control Base Auxiliary Pressure Valve Housing Bore Chamber
3-Feb-1958
No. 543
Constant Speed Control Electric Head Receptacle Change
Constant Speed Control Electric Head Receptacle Change
1-July-1957
No. 505A
New Potted Stepmotor Stators
New Potted Stepmotor Stators
30-June-1960
No. 618
Dome Retaining Nut Welch Plug Fit
Dome Retaining Nut Welch Plug Fit
9-Oct-1953
No. 279
Wear Repair on Barrel Supports
Wear Repair on Barrel Supports
18-June-1956
No. 435
Steel Blade Shank Bore Inspection for Corrosion
Steel Blade Shank Bore Inspection for Corrosion
27-Sept-1956
No. 382A
Servo Valve Modification
Servo Valve Modification
14-Oct-1958
No. 367B
Nylon Tipped Bleed Valve Plungers for Pitch Lock Propellers
Nylon Tipped Bleed Valve Plungers for Pitch Lock Propellers
20-Nov-1957
No. 512A
Hydraulic Pitch Lock Propeller Internal Leakage
Hydraulic Pitch Lock Propeller Internal Leakage
17-Oct-1956
No. 463
Two Flyweight 4U18 & 5U18 Control Solenoid Valve Attaching Hole Depth Inspection
Two Flyweight 4U18 & 5U18 Control Solenoid Valve Attaching Hole Depth Inspection
10-July-1957
No. 518
Re-Routing 5AA22 Control Receptacle Pressure Passage
Re-Routing 5AA22 Control Receptacle Pressure Passage
19-Feb-1960
No. 612
Lubrication of Stepmotor Electric Heads, Ref 511
Lubrication of Stepmotor Electric Heads, Ref 511
8-Dec-1949
No. 110
New Control Input Passage Sleeve
New Control Input Passage Sleeve
22-June-1956
No. 441
Shank Corrosion on Aluminum Blades
Shank Corrosion on Aluminum Blades
22-Aug-1957
No. 508A
Revised Blade Repair Dimensional Tables
Revised Blade Repair Dimensional Tables
12-May-1958
No. 552
Return to Factory of Blades Requiring Re-Cold Working
Return to Factory of Blades Requiring Re-Cold Working
18-Nov-1960
No. 622A
Molded Drum Type Deicer Slip Ring Assembly
Molded Drum Type Deicer Slip Ring Assembly
10-Oct-1958
No. 568
Reidentification of Blade Shank Teflon Strips and Application Procedure Modification
Reidentification of Blade Shank Teflon Strips and Application Procedure Modification
20-Oct-1958
No. 508B
Hydromatic Propellers Model Designation System, Ref 489
Hydromatic Propellers Model Designation System, Ref 489
18-Jan-1946
No. 103
Model 3-C Electric Head, Ref 459
Model 3-C Electric Head, Ref 459
29-April-1949
No. 101
43H60 Barrel to Spider Extension Clearance
43H60 Barrel to Spider Extension Clearance
18-June-1956
No. 439
Additional Support on Drum Type De-Icer Bracket Assemblies
Additional Support on Drum Type De-Icer Bracket Assemblies
25-Feb-1957
No. 398B
De-Icing Slip Ring Assembly Moisture Proofing Compound
De-Icing Slip Ring Assembly Moisture Proofing Compound
10-Sept-1954
No. 311
Servo Piston Shaft Lock Ring Groove Rework
Servo Piston Shaft Lock Ring Groove Rework
10-Sept-1957
No. 524
Constant Speed Control Mounting Gasket
Constant Speed Control Mounting Gasket
31-Dec-1953
No. 268
Slip Ring Assembly to Barrel Retention
Slip Ring Assembly to Barrel Retention
14-July-1955
No. 358
New Control Auxiliary Pressure Valve Assembly with Bar Type Spring Retention
New Control Auxiliary Pressure Valve Assembly with Bar Type Spring Retention
3-Oct-1956
No. 436A
Guard Attaching Screw Interference, Ref 913
Guard Attaching Screw Interference, Ref 913
29-May-1952
No. 224
2H17 Blade Operational Life
2H17 Blade Operational Life
7-June-1954
No. 305
New Assembly Method to Obtain Barrel to Spider Tightness
New Assembly Method to Obtain Barrel to Spider Tightness
30-May-1956
No. 426
Control Reverse Pressure Test Specification Change
Control Reverse Pressure Test Specification Change
27-April
No. 593
Operating Restrictions for 23E60/6507-0 Type Propellers with P&WA R-2000 Series Engines on DC-4
Operating Restrictions for 23E60/6507-0 Type Propellers with P&WA R-2000 Series Engines on DC-4
6-April-1962
No. 629
Servo Piston Shaft Scoring Removal
Servo Piston Shaft Scoring Removal
9-Oct-1953
No. 281
Disposition of Aluminum Bladed Propellers Having Experienced Impact or Overspeed
Disposition of Aluminum Bladed Propellers Having Experienced Impact or Overspeed
26-Mar-1957
No. 473A
Propeller Retaining Nut Torque
Propeller Retaining Nut Torque
20-Jan-1956
No. 386
Low Temperature External Seals
Low Temperature External Seals
19-Feb-1960
No. 563A
Steel Blade Heater Resistance
Steel Blade Heater Resistance
26-Mar-1953
No. 248
Barrel Support Balancing Washers for Propeller Models 22D30 and 22D40, Ref 546
Barrel Support Balancing Washers for Propeller Models 22D30 and 22D40, Ref 546
18-Mar-1947
No. 120
Servo Piston Shaft Scoring Removal (Service Bulletin 281 Supplement)
Servo Piston Shaft Scoring Removal (Service Bulletin 281 Supplement)
17-April-1956
No. 281A
Pitch Lock Flyweight Housing Inside Diameter Increase
Pitch Lock Flyweight Housing Inside Diameter Increase
20-Feb-1959
No. 587
Constant Speed Control Solenoid Valve Bore Sleeve
Constant Speed Control Solenoid Valve Bore Sleeve
12-July-1957
No. 516
Servo Valve Leakage
Servo Valve Leakage
13-Aug-1956
No. 301A
Piston Stop Lever Wedge Rework
Piston Stop Lever Wedge Rework
17-April-1956
No. 403
Aluminum Propeller Blade Torque Values
Aluminum Propeller Blade Torque Values
13-Feb-1959
No. 584
Control Switch Boot, Ref 874
Control Switch Boot, Ref 874
20-Sept-1951
No. 211
Simplified Propeller Control Brush Configuration
Simplified Propeller Control Brush Configuration
7-Mar-1956
No. 395
Addition of Switch Supports on Spinner Bulkheads
Addition of Switch Supports on Spinner Bulkheads
2-Sept-1960
No. 621
Low Temperature Blade Packings on Aluminum Alloy Blades
Low Temperature Blade Packings on Aluminum Alloy Blades
6-Sept-1957
No. 525
Feathering Line Filter for Use with Hydromatic Propellers
Feathering Line Filter for Use with Hydromatic Propellers
20-Aug-1956
No. 446
Rework of Barrel Bolt Lugs, Ref 555
Rework of Barrel Bolt Lugs, Ref 555
15-April-1947
No. 122
Hamilton Standard Propellers Service and Overhaul Tools, Ref 568
Hamilton Standard Propellers Service and Overhaul Tools, Ref 568
15-July-1947
No. 126
New Dual (Co-Axial) Servo Valve Springs
New Dual (Co-Axial) Servo Valve Springs
27-Aug-1956
No. 455
Rework of Spider Seats and Rear Cones, Ref 556
Rework of Spider Seats and Rear Cones, Ref 556
30-April-1947
No. 123
Line Maintenance of Aluminum Blades
Line Maintenance of Aluminum Blades
19-May-1955
No. 339A
Rebushing of 4U18 & 5U18 Controls on Jig Boring Machine
Rebushing of 4U18 & 5U18 Controls on Jig Boring Machine
25-Feb-1957
No. 412A
Synchronizer Modifications
Synchronizer Modifications
26-Feb-1957
No. 408A
Correct Unfeathering Procedure for C-54 and DC-4 Aircraft, Ref 523
Correct Unfeathering Procedure for C-54 and DC-4 Aircraft, Ref 523
12-Nov-1946
No. 113
Unplated Snap Rings in Constant Speed Controls
Unplated Snap Rings in Constant Speed Controls
27-Nov-1956
No. 477
Maintenance of Nickel Plated Steel Blades
Maintenance of Nickel Plated Steel Blades
8-Jan-1954
No. 285
43H60 Propeller Blade Thrust Bearing Retainer Diameter Reduction
43H60 Propeller Blade Thrust Bearing Retainer Diameter Reduction
27-Oct-1955
No. 373
Hydraulic Pitch Lock Propeller Internal Leakage
Hydraulic Pitch Lock Propeller Internal Leakage
25-Feb-1957
No. 463A
New External Control Switch, Ref 916
New External Control Switch, Ref 916
19-June-1952
No. 225
Servo Piston Shaft Interference
Servo Piston Shaft Interference
9-Oct-1953
No. 280
Steel Cable Connector Assemblies
Steel Cable Connector Assemblies
21-Dec-1953
No. 274
Synchronizer Adjustments, Ref 896
Synchronizer Adjustments, Ref 896
18-Feb-1952
No. 219
Stepmotor Electric Head, Ref 742
Stepmotor Electric Head, Ref 742
8-April-1949
No. 174
Spinner Installation on 43E60 Propellers on DC-6 Aircraft
Spinner Installation on 43E60 Propellers on DC-6 Aircraft
3-May-1957
No. 465A
Control Body Solenoid Boss Grooving to Vent Possible Plug Leakage
Control Body Solenoid Boss Grooving to Vent Possible Plug Leakage
6-Mar-1959
No. 536B
Double Capacity Relief Valve Modification, Ref 743
Double Capacity Relief Valve Modification, Ref 743
20-May-1949
No. 175
Overhaul of Four-Flyweight Type 5U18 Controls
Overhaul of Four-Flyweight Type 5U18 Controls
16-April-1957
No. 493
Revised Blade Repair Dimensional Tables
Revised Blade Repair Dimensional Tables
18-July-1958
No. 552A
Modification of Oil Transfer Tube for 34E60 Propellers
Modification of Oil Transfer Tube for 34E60 Propellers
17-Oct-1957
No. 529
Propeller Lubrication, Ref 763
Propeller Lubrication, Ref 763
22-Nov-1949
No. 180
Low Pitch Stop Assembly Oil Seal Rings, Ref 752
Low Pitch Stop Assembly Oil Seal Rings, Ref 752
1-Sept-1949
No. 178
Steel Blade Propeller Torques, Ref 654
Steel Blade Propeller Torques, Ref 654
30-June-1948
No. 154
Lock Wrench Inspection, Ref 822
Lock Wrench Inspection, Ref 822
26-Oct-1950
No. 199
Revised Magnetic Inspection of Spiders, Ref 919
Revised Magnetic Inspection of Spiders, Ref 919
19-June-1952
No. 226
New Bracket Assembly for 43E60 Fluid De-Icing Installations
New Bracket Assembly for 43E60 Fluid De-Icing Installations
20-Sept-1954
No. 317
Service Limits for 24260 Blade Support Rings
Service Limits for 24260 Blade Support Rings
16-Mar-1953
No. 246
Reversing Circuit Modification, Ref 901
Reversing Circuit Modification, Ref 901
7-Mar-1952
No. 221
Cable Harness Application on Control Electric Heads
Cable Harness Application on Control Electric Heads
16-Nov-1956
No. 470
Four-Flyweight Type Control Shuttle Valve Sleeve Retention
Four-Flyweight Type Control Shuttle Valve Sleeve Retention
17-Feb-1956
No. 393
Inspection and Rework of "D" Size Low Pitch Stop Assemblies
Inspection and Rework of "D" Size Low Pitch Stop Assemblies
28-May-1953
No. 262
Chrome Plating Piston Sleeves
Chrome Plating Piston Sleeves
22-April-1957
No. 499
Control Box Modification, Ref 954
Control Box Modification, Ref 954
24-Dec-1952
No. 236
Reversing Circuit Modification, Ref 949
Reversing Circuit Modification, Ref 949
17-Nov-1952
No. 234
Servo Piston Movement Test
Servo Piston Movement Test
20-July-1953
No. 266
Dual Feathering Line System
Dual Feathering Line System
17-July-1957
No. 487A
Pressure Cut-Out Switch Rework, Ref 573
Pressure Cut-Out Switch Rework, Ref 573
31-July-1947
No. 128
New Terminal Strap Assembly, Ref 612
New Terminal Strap Assembly, Ref 612
30-Dec-1947
No. 141
5U21, 5AB23 Head Thrust Plunger Change
5U21, 5AB23 Head Thrust Plunger Change
26-Jan-1960
No. 611
Control Base Mounting Flange Spotface Rework
Control Base Mounting Flange Spotface Rework
14-Mar-1958
No. 545
Radius on Control Shaft of 5-A Head, Ref 550
Radius on Control Shaft of 5-A Head, Ref 550
31-Mar-1947
No. 121
Forged 4U18 & 5U18 Control Bodies
Forged 4U18 & 5U18 Control Bodies
26-Nov-1957
No. 478A
Shotpeening Segmental Gears (Aluminum Blade Propellers)
Shotpeening Segmental Gears (Aluminum Blade Propellers)
17-Nov-1955
No. 376
New Constant Speed Control Mounting Gasket
New Constant Speed Control Mounting Gasket
20-July-1953
No. 268
Barrel Arm Bore Marking Removal
Barrel Arm Bore Marking Removal
28-May-1953
No. 255
Model 4U18 and 5U18 Control Drive Gear Shaft Change
Model 4U18 and 5U18 Control Drive Gear Shaft Change
27-April-1956
No. 394A
Dome Assembly Installation Markings
Dome Assembly Installation Markings
25-Feb-1957
No. 485
Increase of Radius and Surface Finish on Dome Pistons 68233 and 84413
Increase of Radius and Surface Finish on Dome Pistons 68233 and 84413
25-Feb-1954
No. 292
Flag Type De-Icing Terminal Extension Material Change
Flag Type De-Icing Terminal Extension Material Change
25-Feb-1957
No. 427A
New Cam Roller Assemblies
New Cam Roller Assemblies
7-Nov-1955
No. 375
Improved Cold Weather Propeller Reversing Operation by Modification of the Low Pitch Stop Assembly
Improved Cold Weather Propeller Reversing Operation by Modification of the Low Pitch Stop Assembly
27-April-1956
No. 367A
De-Icing Equipment Installation, Ref 868
De-Icing Equipment Installation, Ref 868
24-July-1951
No. 210
Repair of Worn Rack Bores in Control Electric Heads
Repair of Worn Rack Bores in Control Electric Heads
7-Nov-1956
No. 468
The Use of Epoxy-Graphite Mixture on Aluminum Blade Shanks
The Use of Epoxy-Graphite Mixture on Aluminum Blade Shanks
7-Mar-1956
No. 390
Stationary Cam Rework
Stationary Cam Rework
16-Mar-1953
No. 244
"E" Size Wedge Insert Type Servo Piston Shaft Inspection
"E" Size Wedge Insert Type Servo Piston Shaft Inspection
5-Mar-1954
No. 287
One-Piece Blade Heaters and Connectors, Ref 673
One-Piece Blade Heaters and Connectors, Ref 673
10-Nov-1948
No. 159
Aerodynamically Balanced Steel Blades, Ref 647
Aerodynamically Balanced Steel Blades, Ref 647
19-June-1948
No. 152
Preformed Packing Standardization for all Hydromatic Propellers and Associated Equipment
Preformed Packing Standardization for all Hydromatic Propellers and Associated Equipment
14-May-1960
No. 616
Dome Cap and Lever Sleeve Bushing Fit
Dome Cap and Lever Sleeve Bushing Fit
7-Mar-1958
No. 496D
Double Acting Control Contamination and Effect
Double Acting Control Contamination and Effect
8-July-1957
No. 509A
New Stop Lever Assembly, Ref 765
New Stop Lever Assembly, Ref 765
15-Dec-1949
No. 181
Repair of Surface Treated Aluminum Alloy Blades - Supplementary Instructions, Ref 490
Repair of Surface Treated Aluminum Alloy Blades - Supplementary Instructions, Ref 490
14-Feb-1946
No. 104
Propeller Cold Weather Operation
Propeller Cold Weather Operation
8-Nov-1954
No. 324
Retaining Nut Torque, Ref 855
Retaining Nut Torque, Ref 855
2-May-1951
No. 207
Pitch Lock Transfer Tube and Valve Lifter Change
Pitch Lock Transfer Tube and Valve Lifter Change
15-May-1961
No. 573A
22D30 Propeller Replaceable Distributor Valve Spring Housing Liner
22D30 Propeller Replaceable Distributor Valve Spring Housing Liner
30-April-1958
No. 550
Control Flyweight Hinge Pin Tightness Inspection
Control Flyweight Hinge Pin Tightness Inspection
16-Mar-1956
No. 399
34E60 Dome Cap Replacement for DC-7
34E60 Dome Cap Replacement for DC-7
15-Oct-1960
No. 623
Thinner Servo Piston Sealing Rings
Thinner Servo Piston Sealing Rings
21-Apr-1960
Service Bulletin No. 614
Addition of Oil in Control Electric Head
Addition of Oil in Control Electric Head
18-June-1956
No. 437
Parts List System, Ref 877
Parts List System, Ref 877
29-Oct-1951
No. 213
Constant Speed Control Electric Head Receptacle Change
Constant Speed Control Electric Head Receptacle Change
7-May-1957
No. 505
Removal of Shuttle Valve Plug Adapter, Ref 586
Removal of Shuttle Valve Plug Adapter, Ref 586
19-Aug-1947
No. 133
Spinner Dimpling
Spinner Dimpling
28-May-1956
No. 392A
Shot-Peening 43E60 Rotating Cam Gear Teeth
Shot-Peening 43E60 Rotating Cam Gear Teeth
25-Feb-1957
No. 484
Pitch Lock Low Pitch Stop Assembly Spring Guide
Pitch Lock Low Pitch Stop Assembly Spring Guide
25-Feb-1959
No. 586
Loose Stepmotors, Ref 771
Loose Stepmotors, Ref 771
27-Dec-1949
No. 183
Cut-Out Switch Receptacle Gasket Leakage
Cut-Out Switch Receptacle Gasket Leakage
10-Sept-1954
No. 314
Disposition of Aluminum Bladed Propellers Having Experienced Impact
Disposition of Aluminum Bladed Propellers Having Experienced Impact
12-Feb-1963
No. 596B
Replacement of Fairing on Early Model 2H17AC3-R Blades
Replacement of Fairing on Early Model 2H17AC3-R Blades
7-June-1956
No. 433
Larger Radius Fillet Between Fairing Butt and Shank Molding on 23260 Propellers
Larger Radius Fillet Between Fairing Butt and Shank Molding on 23260 Propellers
27-Aug-1956
No. 454
Rework of Solenoid Valve Mounting Gasket
Rework of Solenoid Valve Mounting Gasket
16-Dec-1957
No. 536A
Model 22D Propeller Dome Shells, Ref 576
Model 22D Propeller Dome Shells, Ref 576
31-July-1947
No. 129
New Auxiliary Check Valve, Ref 604
New Auxiliary Check Valve, Ref 604
29-Nov-1947
No. 139
Oil Transfer Tube Cap Retention
Oil Transfer Tube Cap Retention
18-March-1955
No. 347
The 5AB23 Separate Feathering Type Constant Speed Control
The 5AB23 Separate Feathering Type Constant Speed Control
26-May-1959
No. 591
Heat Treating Control Mounting Gaskets
Heat Treating Control Mounting Gaskets
30-June-1960
No. 619
Control Body Solenoid Boss Grooving to Vent Possible Plug Leakage
Control Body Solenoid Boss Grooving to Vent Possible Plug Leakage
3-Nov-1959
No. 536C
De-Icing Brush Pad Sleeve Cement
De-Icing Brush Pad Sleeve Cement
26-April-1954
No. 294
Treatment of the Rear Cone Before Installation of the Propeller, Ref 526
Treatment of the Rear Cone Before Installation of the Propeller, Ref 526
23-Dec-1946
No. 115
Overspeeding and Damage of Aluminum Blade Propellers, Ref 622
Overspeeding and Damage of Aluminum Blade Propellers, Ref 622
20-Feb-1948
No. 144
Spider to Shaft Sealing on 23E50 Propeller Equipped Aircraft
Spider to Shaft Sealing on 23E50 Propeller Equipped Aircraft
18-May-1953
No. 261
Steel Blade Shank Heater Insulation
Steel Blade Shank Heater Insulation
No. 260
Procedure to be Followed in the Event of Propeller Overspeed
Procedure to be Followed in the Event of Propeller Overspeed
20-July-1953
No. 272
Low Temperature External Seal Installation on 34E60, 43E60 and 43H60 Propellers
Low Temperature External Seal Installation on 34E60, 43E60 and 43H60 Propellers
25-July-1958
No. 563
Removal of 34E60 Dome Preload Shim Retainer
Removal of 34E60 Dome Preload Shim Retainer
29-May-1958
No. 554
Test Stands for Pitch Lock Flyweight and Bleed Valve Assembly Testing
Test Stands for Pitch Lock Flyweight and Bleed Valve Assembly Testing
23-Jan
No. 583
Roughness as Evidence of Blade Damage, Ref 797
Roughness as Evidence of Blade Damage, Ref 797
20-Mar-1950
No. 189
Interchangeability of Pressure Cutout Switch Plate Gaskets
Interchangeability of Pressure Cutout Switch Plate Gaskets
27-Nov-1959
No. 605
Disposition of Aluminum Bladed Propellers Having Experienced Overspeed
Disposition of Aluminum Bladed Propellers Having Experienced Overspeed
13-Aug-1959
No. 597
New External Heater for Steel Blades
New External Heater for Steel Blades
7-Mar-1956
No. 396
Servo Valve Setting, Ref 909
Servo Valve Setting, Ref 909
8-May-1952
No. 223
Segmental Gear Rework, Ref 708
Segmental Gear Rework, Ref 708
10-Jan-1949
No. 167
De-Icing and Control Circuit Water Proofing, Ref 926
De-Icing and Control Circuit Water Proofing, Ref 926
18-July-1952
No. 227
Dome Cap and Lever Sleeve Bushing Fit
Dome Cap and Lever Sleeve Bushing Fit
20-May-1957
No. 496A
Type 5 Electric Head Rotor Interference
Type 5 Electric Head Rotor Interference
15-Mar-1957
No. 494
Propeller Installation and Handling Tools, Ref 810
Propeller Installation and Handling Tools, Ref 810
3-Aug-1950
No. 195
Service Publications Index
Service Publications Index
Jan-1951
No. 6
5U21-5 Constant Speed Control Base Assembly Modifications
5U21-5 Constant Speed Control Base Assembly Modifications
9-May-1957
No. 504
Pressure Setting Changes on 5U18 Four-Flyweight
Pressure Setting Changes on 5U18 Four-Flyweight
18-June-1957
No. 492
Replacement of Laminated Shimming Washers in Control Auxiliary Pressure Valves (Bar Retention Type)
Replacement of Laminated Shimming Washers in Control Auxiliary Pressure Valves (Bar Retention Type)
20-Nov-1956
No. 476
Acceptance Test for Single-Acting Hydromatic Type Governors, Ref 582
Acceptance Test for Single-Acting Hydromatic Type Governors, Ref 582
15-Aug-1947
No. 131
Inspection and Rework of 2J17 & 2H17 Type Steel Blades
Inspection and Rework of 2J17 & 2H17 Type Steel Blades
7-May-1956
No. 415
Change in Spinner Dowel Bushing Material
Change in Spinner Dowel Bushing Material
26-May-1960
No. 617
Shot-Peening 43D Spider Shim Plate Faces
Shot-Peening 43D Spider Shim Plate Faces
30-Aug-1954
No. 309
New Low Pitch Stop Assemblies with Sleeve-Restrained Lever Wedge
New Low Pitch Stop Assemblies with Sleeve-Restrained Lever Wedge
7-June-1954
No. 303
Servo Valve Leakage
Servo Valve Leakage
7-May-1957
No. 301B
Steel Blade Plating, Ref 816
Steel Blade Plating, Ref 816
26-Oct-1950
No. 198
Servo Valve Leakage
Servo Valve Leakage
28-April-1954
No. 301
30 Degree Blade Cam Ramp
30 Degree Blade Cam Ramp
17-Sept-1956
No. 456
Operating Recommendations and Barrel Rework for 33E60/6801-6
Operating Recommendations and Barrel Rework for 33E60/6801-6
25-Feb
No. 581
Adding Radius on 34E60 Stop Levers
Adding Radius on 34E60 Stop Levers
20-June-1955
No. 356
Inspection and Repair of Steel Blades, Ref 804
Inspection and Repair of Steel Blades, Ref 804
13-July-1950
No. 193
5U18 Control Shuttle Valve Bore Relocation
5U18 Control Shuttle Valve Bore Relocation
10-Nov-1959
No. 604
De-Icing Assembly Changes, Ref 937
De-Icing Assembly Changes, Ref 937
25-Sept-1952
No. 231
Low Pitch Stop Lever and Wedge Rework
Low Pitch Stop Lever and Wedge Rework
26-Aug-1953
No. 273
Acceptance Test for Double-Acting Hydromatic Type Governors, Ref 596
Acceptance Test for Double-Acting Hydromatic Type Governors, Ref 596
15-Oct-1947
No. 137
Application of Blade Alignment Indicator Gage HS-8150
Application of Blade Alignment Indicator Gage HS-8150
30-July-1960
No. 602A
Separate Feathering Valve Type Constant Speed Controls
Separate Feathering Valve Type Constant Speed Controls
23-Dec-1958
No. 561A
Use of Larger Rollpins in 43D50 and 43D51 Propeller Barrel Support
Use of Larger Rollpins in 43D50 and 43D51 Propeller Barrel Support
18-Oct-1957
No. 527
Service Publications Index
Service Publications Index
Sept-1960
No. 12
Reversing Installation Modifications, Ref 580
Reversing Installation Modifications, Ref 580
15-Aug-1947
No. 130
Piston Cam Roller Shaft Bore Bushing
Piston Cam Roller Shaft Bore Bushing
22-June-1959
No. 594
Torquing of Constant Speed Control Assembly Nuts
Torquing of Constant Speed Control Assembly Nuts
22-June-1956
No. 440
Quad Ring Seal Change
Quad Ring Seal Change
1-July-1957
No. 513
Quad Ring Seal Installation
Quad Ring Seal Installation
18-April-1957
No. 464B
Disposition of Aluminum Bladed Propellers Having Experienced Impact or Overspeed
Disposition of Aluminum Bladed Propellers Having Experienced Impact or Overspeed
27-Nov-1956
No. 473
Oversize Studs for Constant Speed Controls
Oversize Studs for Constant Speed Controls
25-Feb-1954
No. 289
Shotpeening Segmental Gears (Aluminum Blade Propellers)
Shotpeening Segmental Gears (Aluminum Blade Propellers)
19-May-1956
No. 376A
New Solenoid Valve for Double Acting Governors, Ref 670
New Solenoid Valve for Double Acting Governors, Ref 670
10-Nov-1948
No. 158
Governor Oil Control Plugs, Ref 583
Governor Oil Control Plugs, Ref 583
15-Aug-1947
No. 132
Cross Wind Ground Running Restrictions for Two Bladed Propellers on Direct-Drive R-1340 Installations
Cross Wind Ground Running Restrictions for Two Bladed Propellers on Direct-Drive R-1340 Installations
7-June-1954
No. 286
Improved Cold Weather Propeller Reversing Operation
Improved Cold Weather Propeller Reversing Operation
7-June-1954
No. 299
Modifications of Auxiliary Check Valves Used with Four Flyweight Controls
Modifications of Auxiliary Check Valves Used with Four Flyweight Controls
12-April-1957
No. 448B
Addition of Second Flyweight Chamber Drain
Addition of Second Flyweight Chamber Drain
17-Nov-1955
No. 345A
Drum-Type Slip Ring Assembly Waterproofing
Drum-Type Slip Ring Assembly Waterproofing
7-June-1956
No. 416
Steel Blade Seal Back-Up Ring, Ref 803
Steel Blade Seal Back-Up Ring, Ref 803
1-May-1950
No. 192
Electric Head Modifications for DC-7 Installations
Electric Head Modifications for DC-7 Installations
10-June-1955
No. 351
Blade Face Alignment Measurements For Revealing Accidental Bending Damage
Blade Face Alignment Measurements For Revealing Accidental Bending Damage
25-July-1958
No. 546A
DC-7 Brush Pad Installation Tool
DC-7 Brush Pad Installation Tool
18-Mar-1955
No. 348
Rework for Surface Treated Blades, Ref 634
Rework for Surface Treated Blades, Ref 634
20-Mar-1948
No. 147
Correction of Service Bulletin 236
Correction of Service Bulletin 236
6-April-1953
No. 252
New Plunger and Springs for 5U18 Control Auxiliary Pressure Valve
New Plunger and Springs for 5U18 Control Auxiliary Pressure Valve
27-April-1956
No. 410
Additional Support for Control Switch Mounting Platform
Additional Support for Control Switch Mounting Platform
12-July-1957
No. 517
Finer Dump Valve Adjustment
Finer Dump Valve Adjustment
9-Oct-1953
No. 278
Hard Alloy Blades Assembled in Propellers, Ref 336
Hard Alloy Blades Assembled in Propellers, Ref 336
No. 88-99
Control Base Auxiliary Pressure Valve Bore Inspection for Certain 2-Flyweight 5U18 and 4U18 Controls
Control Base Auxiliary Pressure Valve Bore Inspection for Certain 2-Flyweight 5U18 and 4U18 Controls
14-Mar-1958
No. 541A
4U18 and 5U18 Constant Speed Control and 5AA22 Conversion Kit Pressure Switch Plate Assembly Modification
4U18 and 5U18 Constant Speed Control and 5AA22 Conversion Kit Pressure Switch Plate Assembly Modification
3-Nov-1959
No. 603
Stepmotor Electric Head Model 5-A
Stepmotor Electric Head Model 5-A
15-Mar-1946
Service Bulletin No. 105
Low Temperature Blade Packings on Aluminum Alloy Blades
Low Temperature Blade Packings on Aluminum Alloy Blades
17-Mar-1958
No. 525A
New Governor Head and Long Rack, Ref 475
New Governor Head and Long Rack, Ref 475
15-Nov-1945
No. 102
Toroid Seal Application in Early Model Propellers
Toroid Seal Application in Early Model Propellers
7-June-1956
No. 432
RPM Sensitive Hydraulic Pitch Lock for 34E60 Propellers
RPM Sensitive Hydraulic Pitch Lock for 34E60 Propellers
6-Sept-1957
No. 387A
New Barrel Support for 43E60 Propellers
New Barrel Support for 43E60 Propellers
18-Mar-1955
No. 349
Rework of Tachometer Generators, Ref 643
Rework of Tachometer Generators, Ref 643
30-April-1948
No. 150
Line Maintenance of Aluminum Blades
Line Maintenance of Aluminum Blades
28-Jan-1953
No. 237
Baffled Type Control Mounting Gasket
Baffled Type Control Mounting Gasket
18-Dec-1955
No. 380
New Control Auxiliary Pressure Valve Assembly with Bar Type Spring Retention
New Control Auxiliary Pressure Valve Assembly with Bar Type Spring Retention
18-June-1956
No. 436
Double-Acting Control Base Rework
Double-Acting Control Base Rework
27-Oct-1955
No. 374
Stop Lever Service Limits
Stop Lever Service Limits
25-Feb-1957
No. 483
Bell-Coil Insert Change in Slip Ring Assembly
Bell-Coil Insert Change in Slip Ring Assembly
5-Mar-1953
No. 241
Rear Cone Spacer Assembly
Rear Cone Spacer Assembly
15-Oct-1958
No. 428A
Rework for the Double-Acting Feathering Push-Button Switch, Ref 628
Rework for the Double-Acting Feathering Push-Button Switch, Ref 628
20-Feb-1948
No. 145
Double-Acting Control Base Rework
Double-Acting Control Base Rework
1953
No. 256
34E60 Propeller Dome Lug Clearance
34E60 Propeller Dome Lug Clearance
17-Feb-1961
No. 626
Shot-Peening 24260 Propeller Barrel Radius, Rear Extension OD to Rear Face
Shot-Peening 24260 Propeller Barrel Radius, Rear Extension OD to Rear Face
1-Feb-1957
No. 481
Helix Type Solenoid Valve Assembly
Helix Type Solenoid Valve Assembly
30-Sept-1953
No. 275
Improved Control Circuit, Ref 800
Improved Control Circuit, Ref 800
1-May-1950
No. 191
De-Icing Slip Ring Assembly Drain Holes
De-Icing Slip Ring Assembly Drain Holes
20-Sept-1954
No. 321
Control Switch with Modified Mount
Control Switch with Modified Mount
17-Nov-1955
No. 378
New Synchronizers, Ref 814
New Synchronizers, Ref 814
26-Oct-1950
No. 197
Improved Stop Screw Bracket Assembly Retention on 5U21, and 5AB23, Control Electric Heads
Improved Stop Screw Bracket Assembly Retention on 5U21, and 5AB23, Control Electric Heads
26-Jan-1960
No. 589A
Model 4C Synchronizer, Ref 595
Model 4C Synchronizer, Ref 595
15-Oct-1947
No. 136
Potted Stepmotor Stator Rework
Potted Stepmotor Stator Rework
6-Jan-1958
No. 522A
Rework of Dome Retaining Nut Lock Screw
Rework of Dome Retaining Nut Lock Screw
16-May-1956
No. 425
Revised Barrel Half Dimension Requirements
Revised Barrel Half Dimension Requirements
No. 632A
Installation of Helical Coil Inserts in Dome Shells
Installation of Helical Coil Inserts in Dome Shells
18-June-1956
No. 438
Double-Acting Hydromatic Type Governors, Ref 458
Double-Acting Hydromatic Type Governors, Ref 458
21-June-1945
No. 100
Bleed Hole Modification for Reversing Hydromatic Propellers, Ref 609
Bleed Hole Modification for Reversing Hydromatic Propellers, Ref 609
30-Dec-1947
No. 140