Douglas Service Bulletins

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Douglas Service Bulletins

DOUGSB MANUALS AND RESOURCES AVAILABLE WITH MEMBERSHIP (203 documents)

Provision for Access Inspection Doors Aft of Stations 372, 429, and 492
Provision for Access Inspection Doors Aft of Stations 372, 429, and 492
9-Dec-1944
Service Bulletin No. 10
Replacement of Elevator Trim Tab Control Horn
Replacement of Elevator Trim Tab Control Horn
27-Mar-1944
Service Bulletin 223 - Section I
Instructions for Installing Cabin Window Glass
Instructions for Installing Cabin Window Glass
20-Feb-1937
Service Bulletin No. 11
Cracking of Horizontal Stabilizer Ribs
Cracking of Horizontal Stabilizer Ribs
16-Aug-1944
Service Bulletin No. 226 - Section I
Collector Ring Revision
Collector Ring Revision
7-Nov-1941
Service Bulletin No. 208 - Section V
Correct Method of Towing Airplane from Landing Gear
Correct Method of Towing Airplane from Landing Gear
20-May-1937
Service Bulletin No. 34
Enlargement of Oil Tank and Propeller Control Lines, Replacement of Oil Tank Drain Cock and Propeller Feathering Line "Y" Drain
Enlargement of Oil Tank and Propeller Control Lines, Replacement of Oil Tank Drain Cock and Propeller Feathering Line "Y" Drain
16-Oct-1943
Service Bulletin No. 61
Rework of Propeller Feathering Pump
Rework of Propeller Feathering Pump
21-July-1944
Service Bulletin No. 80
Replacement of Elevator Trim Tab Control Horn
Replacement of Elevator Trim Tab Control Horn
23-July-1945
Service Bulletin No. 234 - Section I
Fuel and Oil Tank Caps - Part 2075832 and 2005270
Fuel and Oil Tank Caps - Part 2075832 and 2005270
6-June-1941
Service Bulletin No. 202 - Section V
Replacement of Main Landing Gear Rubber Bungee to Hydraulic Compensator
Replacement of Main Landing Gear Rubber Bungee to Hydraulic Compensator
14-Nov-1946
Service Bulletin No. 245 - Section IV
Standardization of Engine Mount Rubber Bushings
Standardization of Engine Mount Rubber Bushings
13-Sept-1938
Service Bulletin No. 117 - Section V
Wings - Center Section - Lower Wing Skin Crack Repair and-or Reinforcement for DC-3
Wings - Center Section - Lower Wing Skin Crack Repair and-or Reinforcement for DC-3
6-May-1971
Service Bulletin No. 263
Rudder Pedal Adjusting Lever Guard
Rudder Pedal Adjusting Lever Guard
20-May-1941
Service Bulletin No. 198 - Section X
Repair Center Section Lower Skin Cracks Station 127-3/4
Repair Center Section Lower Skin Cracks Station 127-3/4
15-Mar-1945
Service Bulletin No. 229 - Section I
Rework - Installation of an Inspection Door in the L.H. Outer Wing
Rework - Installation of an Inspection Door in the L.H. Outer Wing
12-Dec-1942
Service Bulletin No. 14
Redesign of Landing Gear Rear Brace Strut Fitting - Part 230659
Redesign of Landing Gear Rear Brace Strut Fitting - Part 230659
11-Sept-1946
Service Bulletin No. 233 - Section IV
Installation of Fluorescent Instrument Range Markers
Installation of Fluorescent Instrument Range Markers
4-Feb-1943
Service Bulletin No. 75
Surface Control Balance
Surface Control Balance
9-Oct-1941
Service Bulletin No. 207 - Section I
Hydraulic System Packing Cups in Sperry Oil System
Hydraulic System Packing Cups in Sperry Oil System
18-July-1939
Service Bulletin No. 152 - Section IV
Installation of a Shut Off Valve in the Carburetor Deicer Alcohol Tank
Installation of a Shut Off Valve in the Carburetor Deicer Alcohol Tank
12-Mar-1943
Service Bulletin No. 94
Use of Sperry Fluid in the Landing Gear Oleo Struts
Use of Sperry Fluid in the Landing Gear Oleo Struts
2-Mar-1939
Service Bulletin No. 140 - Section IV
Rework of the Exhaust Collector Ring by Replacing the Weld Assembly - Part 5115224-9 - Containing Lug Part S-1005486N
Rework of the Exhaust Collector Ring by Replacing the Weld Assembly - Part 5115224-9 - Containing Lug Part S-1005486N
2-Jan-1945
Service Bulletin No. 7
Bushing of Additional Aileron Flettner Control Parts
Bushing of Additional Aileron Flettner Control Parts
13-Mar-1939
Service Bulletin No. 123 - Section I
Inspection of Elevator Torque Tube
Inspection of Elevator Torque Tube
13-Sept-1943
Service Bulletin No. 217 - Section I
Main Landing Gear Axles and Torque Collars DC-3
Main Landing Gear Axles and Torque Collars DC-3
19-Jan-1963
Service Bulletin No. 261
Modification of Oil Tank Hopper Assembly
Modification of Oil Tank Hopper Assembly
12-Mar-1946
Service Bulletin No. 21, T.O. No. 01-40NC-86
Relocation to Flight Wheel Brake - No. 4082725
Relocation to Flight Wheel Brake - No. 4082725
29-Dec-1941
Service Bulletin No. 210 - Section IV
Addition of Loading Chart
Addition of Loading Chart
16-May-1942
Service Bulletin No. 3, T.O. No. 01-40NC-8
Replacement of Oil-Pressure Gage Lines with Flexible Hose Assembly
Replacement of Oil-Pressure Gage Lines with Flexible Hose Assembly
25-Sept-1944
Service Bulletin No. 75, T.O. No. 01-40NC-66
Rudder Tab Push Rod Revision
Rudder Tab Push Rod Revision
12-Aug-1941
Service Bulletin No. 188 - Section I
Installation of Cotter Pin in Power Brake Control Valve - Assembly 5007340
Installation of Cotter Pin in Power Brake Control Valve - Assembly 5007340
14-Jan-1942
Service Bulletin No. 212 - Section VI
Installation of Provisions for Oil Immersion Heater
Installation of Provisions for Oil Immersion Heater
20-Mar-1944
Service Bulletin No. 74
Oil Cooler Shutter Operational in Cold Weather
Oil Cooler Shutter Operational in Cold Weather
22-Dec-1938
Service Bulletin No. 128 - Section V
Operation of Landing Gear Four Way Control Valve
Operation of Landing Gear Four Way Control Valve
11-Nov-1937
Service Bulletin No. 75 - Section VI
Checking and Re-Rigging of Primary Flight Controls (Ailerons-Rudder-Elevators)
Checking and Re-Rigging of Primary Flight Controls (Ailerons-Rudder-Elevators)
1-Dec-1942
Service Bulletin No. 46
Installation of Oil Radiator Surge Valve
Installation of Oil Radiator Surge Valve
16-Oct-1943
Service Bulletin No. 59
Addition of Clip to Wing Rib
Addition of Clip to Wing Rib
8-May-1942
Service Bulletin No. 214 - Section I
Recommended Inspection and Test of H & V Supply Tank
Recommended Inspection and Test of H & V Supply Tank
19-Aug-1938
Service Bulletin No. 116 - Section VII
Control Column Canvas Boot Assembly 5035184-16 and 5035184-17
Control Column Canvas Boot Assembly 5035184-16 and 5035184-17
26-Mar-1945
Service Bulletin No. 231
Special Wrench for Installing Standard Parker Seats
Special Wrench for Installing Standard Parker Seats
26-April-1937
Service Bulletin No. 25
Installation of Wing Tip Inspection Strips
Installation of Wing Tip Inspection Strips
6-June-1944
Service Bulletin 225 - Section I
Improved Wing Inspection Strips
Improved Wing Inspection Strips
1-Dec-1943
Service Bulletin No. 111 - Section I
Discussion of Precautions to Extend the Life of Landing Gear Rubber Bungee Rings
Discussion of Precautions to Extend the Life of Landing Gear Rubber Bungee Rings
20-June-1938
Service Bulletin No. 105 - Section IV
Rework Oil Tank Filler Gauge Attachment
Rework Oil Tank Filler Gauge Attachment
18-June-1942
Service Bulletin No. 9
Use of Hydraulic Jacks on Landing Gear
Use of Hydraulic Jacks on Landing Gear
11-Jan-1937
Service Bulletin No. 5
Reinforcement to Frame at Station #623
Reinforcement to Frame at Station #623
18-Mar-1940
Service Bulletin No. 175 - Section III
Repair of Rib at Station 42 - DC-3 Rear Center Section
Repair of Rib at Station 42 - DC-3 Rear Center Section
27-Sept-1944
Service Bulletin No. 228
Replacement of the Hydraulic Check Valve at the Hydraulic Pressure Regulator
Replacement of the Hydraulic Check Valve at the Hydraulic Pressure Regulator
3-Feb-1943
Service Bulletin No. 34
Reinforcement of the Propeller Feathering Pump Flex Hose with a New Low Temperature Hose
Reinforcement of the Propeller Feathering Pump Flex Hose with a New Low Temperature Hose
2-Dec-1943
Service Bulletin No. 65
Flexible Fire Proof Material for Sealing Cutouts, Gaps & Line Clearance Holes in the Inner Ring & Firewall
Flexible Fire Proof Material for Sealing Cutouts, Gaps & Line Clearance Holes in the Inner Ring & Firewall
21-April-1947
Service Bulletin No. 247
Main Cargo Door Latch Bolt Assembly & Door Sill
Main Cargo Door Latch Bolt Assembly & Door Sill
2-Sept-1943
Service Bulletin No. 52, T.O. No. 01-40NC-47
Installation of Dump Valve Chutes
Installation of Dump Valve Chutes
24-Feb-1938
Service Bulletin No. 94 - Section V
Rework the Hydraulic Pressure Regulator
Rework the Hydraulic Pressure Regulator
1-Oct-1947
Service Bulletin No. 44 - T.O. No. 40NC-29
Approved Method of Bushing Retracting Strut Eyebolt Hooks
Approved Method of Bushing Retracting Strut Eyebolt Hooks
12-Jan-1939
Service Bulletin No. 133 - Section IV
Maintenance of Flap Indicator
Maintenance of Flap Indicator
26-April-1937
Service Bulletin No. 24
Instructions for Checking Setting of Heating System Valves
Instructions for Checking Setting of Heating System Valves
8-Mar-1937
Service Bulletin No. 13
Rework of Propeller Governor Pulley - Left Hand Engine Only - C-47 and C-53
Rework of Propeller Governor Pulley - Left Hand Engine Only - C-47 and C-53
8-Mar-1945
Service Bulletin No. 17
Method of Preventing Wear on Cowl Flap Segments
Method of Preventing Wear on Cowl Flap Segments
23-Sept-1937
Service Bulletin No. 68 - Section V
Center & Outer Wings Inspection and Replacement of Upper and Lower Attach Angles and Doublers
Center & Outer Wings Inspection and Replacement of Upper and Lower Attach Angles and Doublers
2-Jan-1965
Service Bulletin No. 262
Replacement of 1/4" O.D. Oil Pressure Lines - Transmitter to Gauge with 1/8" O.D. Lines - Installation of Restriction at Transmitter Engine Oil Inlet
Replacement of 1/4" O.D. Oil Pressure Lines - Transmitter to Gauge with 1/8" O.D. Lines - Installation of Restriction at Transmitter Engine Oil Inlet
20-June-1944
Service Bulletin No. 78, T.O. No. 01-40NC-75
EIevator Rib Cracking at Trim Tab Hinge
EIevator Rib Cracking at Trim Tab Hinge
23-Sept-1946
Service Bulletin No. 244 - Section I
Instructions for Installing and Adjusting Landing Gear Signal Switch Arm
Instructions for Installing and Adjusting Landing Gear Signal Switch Arm
14-July-1939
Service Bulletin No. 150 - Section IV
Readjustment of Ball End - Tail Wheel Spindle Upper End
Readjustment of Ball End - Tail Wheel Spindle Upper End
10-Aug-1938
Service Bulletin No. 112 - Section IV
Reinforcement of Aileron Hinges
Reinforcement of Aileron Hinges
16-Aug-1946
Service Bulletin No. 182 - Section I
Wing Tip Skin Failures, DC-3
Wing Tip Skin Failures, DC-3
15-Jan-1946
Service Bulletin No. 237 - Section I
Recommended Inspection Procedure
Recommended Inspection Procedure
17-Mar-1938
Service Bulletin No. 97 - Section I
Aero Supply 124030 Wobble Pump
Aero Supply 124030 Wobble Pump
21-Feb-1944
Service Bulletin No. 221 - Section V
Replacement of Engine Section Throttle Rod
Replacement of Engine Section Throttle Rod
1-Jan-1944
Service Bulletin No. 219 - Section V
Inspection and Repair of Landing Gear Rear Brace Strut Fitting - Part 230659
Inspection and Repair of Landing Gear Rear Brace Strut Fitting - Part 230659
29-June-1945
Service Bulletin No. 233 - Section IV
Revision of Fluorescent Lights
Revision of Fluorescent Lights
2-Jan-1943
Service Bulletin No. 32
Installation of Provisions for Cooling the Main Electrical Junctions Box & Carbon Pile Voltage Regulators
Installation of Provisions for Cooling the Main Electrical Junctions Box & Carbon Pile Voltage Regulators
14-Aug-1944
Service Bulletin No. 2
Cracking - Outer Wing Ribs, Nos 7 to 10, inclusive, Stations 125.3, 143.2, 161.1 and 179
Cracking - Outer Wing Ribs, Nos 7 to 10, inclusive, Stations 125.3, 143.2, 161.1 and 179
13-Feb-1945
Service Bulletin No. 230 - Section I
Inspection of Elevator Torque Tube
Inspection of Elevator Torque Tube
27-Sept-1944
Service Bulletin No. 217 - Section I
Installation of Oil Venting System for 30% Dilution (Winterization)
Installation of Oil Venting System for 30% Dilution (Winterization)
9-Nov-1944
Service Bulletin No. 4
Tail Wheel Well Rework
Tail Wheel Well Rework
18-Sept-1939
Service Bulletin No. 157 - Section III
Reinforcement and Repair of the Horizontal Stabilizer Rib Structure - Rework and Repair to be Accomplished only at the of Horizontal Rib Failures
Reinforcement and Repair of the Horizontal Stabilizer Rib Structure - Rework and Repair to be Accomplished only at the of Horizontal Rib Failures
20-Nov-1944
Service Bulletin No. 5
Lower Wing Skin Crack Repair and-or Reinforcement - Wings Center Section
Lower Wing Skin Crack Repair and-or Reinforcement - Wings Center Section
26-Sept-1966
Service Bulletin No. 263
Wing Tip Structure Alterations
Wing Tip Structure Alterations
14-Sept-1943
Service Bulletin No. 215 - Section I
How to Install Wing Tips that are not Drilled for Attachment
How to Install Wing Tips that are not Drilled for Attachment
4-June-1946
Service Bulletin No. 65
Installation of Wing Tip Inspection Strips
Installation of Wing Tip Inspection Strips
6-June-1944
Service Bulletin No. 225 - Section I
Installation of Additional Parts to Make Dump Valve Chute Extensible
Installation of Additional Parts to Make Dump Valve Chute Extensible
23-Mar-1939
Service Bulletin No. 143 - Section V
Rear Baggage Compartment Access Door Vent
Rear Baggage Compartment Access Door Vent
4-June-1947
Service Bulletin No. 252
Surface Control Rigging Specifications
Surface Control Rigging Specifications
22-Sept-1941
Service Bulletin No. 206 - Section I
Master Battery Switch Circuit Revision
Master Battery Switch Circuit Revision
28-Mar-1947
Service Bulletin No. 253
External Control Surface Locks
External Control Surface Locks
1-Nov-1940
Service Bulletin No. 187 - Section X
Rebushing Aileron Flap Bracket
Rebushing Aileron Flap Bracket
21-Nov-1938
Service Bulletin No. 123 - Section I
Suggestion to Prevent Steam Shutoff Valve Warpage
Suggestion to Prevent Steam Shutoff Valve Warpage
21-Oct-1937
Service Bulletin No. 73 - Section VII
Repair of US Rubber Co Non-Metallic Long Range Fuel Ferrying Tanks and Alcohol Tanks Type C-102 (Non-Self Sealing & Non-Bullet Proof)
Repair of US Rubber Co Non-Metallic Long Range Fuel Ferrying Tanks and Alcohol Tanks Type C-102 (Non-Self Sealing & Non-Bullet Proof)
17-Oct-1942
Service Bulletin No. 40
Tail Wheel Fork #5006445 Drainage
Tail Wheel Fork #5006445 Drainage
11-Oct-1940
Service Bulletin No. 186 - Section IV
Replacement of Ram Non-Ram (Hydraulic) Type Carburetor Air Scoop with Ram (Conventional) Type Carburetor Air Scoop
Replacement of Ram Non-Ram (Hydraulic) Type Carburetor Air Scoop with Ram (Conventional) Type Carburetor Air Scoop
15-April-1947
Service Bulletin No. 251
External Control Surface Locks
External Control Surface Locks
5-April-1941
Service Bulletin No. 187 - Section X
Instruction of Turnbuckle Assembly in Landing Gear Mechanical Latch
Instruction of Turnbuckle Assembly in Landing Gear Mechanical Latch
1-Aug-1942
Service Bulletin No. 196 - Section IV
Horizontal Stabilizer Reinforcement
Horizontal Stabilizer Reinforcement
1-Nov-1939
Service Bulletin No. 158 - Section I
Propeller Feathering Pump Motor Rework
Propeller Feathering Pump Motor Rework
14-April-1942
Service Bulletin No. 213 - Section V
Control Pedestal Shaft Revision
Control Pedestal Shaft Revision
5-May-1941
Service Bulletin No. 200 - Section X
Inboard Aileron Support Bracket Reinforcement
Inboard Aileron Support Bracket Reinforcement
12-Feb-1941
Service Bulletin No. 195 - Section I
Revision of Special Maintenance Plumbing Tools
Revision of Special Maintenance Plumbing Tools
18-Feb-1938
Service Bulletin No. 33
Replacement of Outer Wing Attach Angle Doubler for C-53 and C-47
Replacement of Outer Wing Attach Angle Doubler for C-53 and C-47
27-Nov-1944
Service Bulletin No. 6
Correction of Bushing Dimension
Correction of Bushing Dimension
11-May-1939
Service Bulletin No. 133 - Section IV
Installation of Provisions for Oil Dilution of the Propeller Feathering System
Installation of Provisions for Oil Dilution of the Propeller Feathering System
16-Oct-1943
Service Bulletin No. 60
Bushing of Outer to Inner Wing Attach Angle Holes
Bushing of Outer to Inner Wing Attach Angle Holes
29-Nov-1945
Service Bulletin No. 235 - Section I
Installation of Oil Pressure Transmitter
Installation of Oil Pressure Transmitter
14-Oct-1943
Service Bulletin No. 58
Recommended Inspection and Care in Installing Wing Attaching Angle Fairing Bolts
Recommended Inspection and Care in Installing Wing Attaching Angle Fairing Bolts
6-June-1938
Service Bulletin No. 102 - Section I
Elimination of Holes in Firewall, Addition of Control Cable Seals - Replacement of Dural Plates & Fittings w Steel Plates & Fittings
Elimination of Holes in Firewall, Addition of Control Cable Seals - Replacement of Dural Plates & Fittings w Steel Plates & Fittings
10-Mar-1948
Service Bulletin No. 258
Info to Assist in Distinguishing Between Right and Left Hand Landing Gear Upper Trusses
Info to Assist in Distinguishing Between Right and Left Hand Landing Gear Upper Trusses
6-June-1938
Service Bulletin No. 101 - Section IV
Reinforcement of Nacelle Cowling Inner Ring Assembly
Reinforcement of Nacelle Cowling Inner Ring Assembly
16-Mar-1944
Service Bulletin No. 73, T.O. No. 01-40NC-9
Rework Propeller Deicer Feed Line
Rework Propeller Deicer Feed Line
1-Jan-1943
Service Bulletin No. 67
Installation of Fire Detectors in Engine Accessory Sections & Smoke Detector in Rear Baggage Compartment
Installation of Fire Detectors in Engine Accessory Sections & Smoke Detector in Rear Baggage Compartment
15-Mar-1948, JBenetka
Service Bulletin No. 250
Precautions Advised in the use of Pressure Regulator
Precautions Advised in the use of Pressure Regulator
12-Mar-1937
Service Bulletin No. 13
Installation of Provisions for Heating the Automatic Pilot Servo Unit
Installation of Provisions for Heating the Automatic Pilot Servo Unit
10-Jan-1944
Service Bulletin No. 68
Special Tool to be used in Installing Landing Gear Bolt - 1006610
Special Tool to be used in Installing Landing Gear Bolt - 1006610
12-Aug-1938
Service Bulletin No. 114 - Section IV
Rework Generator Control Panels and Provide a Method of Adjustment - Eclipse 323-1A to 323-1B
Rework Generator Control Panels and Provide a Method of Adjustment - Eclipse 323-1A to 323-1B
10-Oct-1942
Service Bulletin No. 7
Suggested Reinforcements for Rudder Stock
Suggested Reinforcements for Rudder Stock
24-May-1937
Service Bulletin No. 37 - Section I
Instructions for Adjusting the Landing Gear Mechanical Latch
Instructions for Adjusting the Landing Gear Mechanical Latch
14-Mar-1941
Service Bulletin No. 196 - Section IV
Aileron Lock
Aileron Lock
26-Sept-1940
Service Bulletin No. 184 - Section X
Replacement of Main and Auxiliary Fuel Tank Baffles
Replacement of Main and Auxiliary Fuel Tank Baffles
8-Sept-1943
Service Bulletin No. 56, T.O. No. 01-40NC-49
Installation of Birdproof (Double Strength) Windshield Glass Panels
Installation of Birdproof (Double Strength) Windshield Glass Panels
23-Jan-1945
Service Bulletin No. 11
Installation of Plate Assembly Throttle Shops - Part 5115229
Installation of Plate Assembly Throttle Shops - Part 5115229
31-Oct-1944
Service Bulletin No. 3
Installation of Shut-Off Valves on Lines Carrying Combustible Fluids into the Engine Assembly Section
Installation of Shut-Off Valves on Lines Carrying Combustible Fluids into the Engine Assembly Section
10-Mar-1948
Service Bulletin No. 259
Modification of Oil Tank Hopper Assembly
Modification of Oil Tank Hopper Assembly
11-Dec-1946
Service Bulletin No. 21, T.O. No. 01-40NC-86
Cockpit Side-Window Glass Assembly - Substitution DC-3 and C-47
Cockpit Side-Window Glass Assembly - Substitution DC-3 and C-47
12-Mar-1949
Service Bulletin No. 260
Correct Fluid for Hydraulic System
Correct Fluid for Hydraulic System
11-Nov-1938
Service Bulletin No. 122 - Section VI
Installation of Blanket and Shroud on Exhaust Tail Pipe Heat Exchanger
Installation of Blanket and Shroud on Exhaust Tail Pipe Heat Exchanger
25-Mar-1944
Service Bulletin No. 51, T.O. No. 01-40NC-39
Front Spar Web Repair
Front Spar Web Repair
2-May-1945
Service Bulletin No. 232 - Section I
Cant Rib Reinforcement
Cant Rib Reinforcement
18-May-1939
Service Bulletin No. 147 - Section I
Reinforcement of Center Wing Trailing Edge Ribs
Reinforcement of Center Wing Trailing Edge Ribs
9-Nov-1943
Service Bulletin No. 63, T.O. No. 01-40NC-53
Approved Method of Reworking Stabilizer Leading Edges to Facilotate Repairs or Replacement
Approved Method of Reworking Stabilizer Leading Edges to Facilotate Repairs or Replacement
5-Oct-1937
Service Bulletin No. 69 - Section I
Landing Gear Oleo Inflation
Landing Gear Oleo Inflation
7-May-1937
Service Bulletin No. 30
Flex Hand Crank Drive to Starter Support Assembly and Vacuum Line Support Assembly
Flex Hand Crank Drive to Starter Support Assembly and Vacuum Line Support Assembly
8-Feb-1944
Service Bulletin No. 46
Attach Angle to Spar Cap Bolts
Attach Angle to Spar Cap Bolts
29-Dec-1941
Service Bulletin No. 211 - Section I
Addition of a Drain Valve to the Engine Oil Tank Sump Castings
Addition of a Drain Valve to the Engine Oil Tank Sump Castings
2-Oct-1944
Service Bulletin No. 36
Rework of Oil Tank Drain Cover
Rework of Oil Tank Drain Cover
11-July-1944
Service Bulletin No. 79
Rework of the Carburetor Vent Line
Rework of the Carburetor Vent Line
25-Jan-1943
Service Bulletin No. 74
Installation of Emergency Defrost System for Pilot's and Co-Pilot's Windshields
Installation of Emergency Defrost System for Pilot's and Co-Pilot's Windshields
4-Dec-1943
Service Bulletin No. 62
Rework of Long Range Fuel System Installation
Rework of Long Range Fuel System Installation
31-Aug-1942
Service Bulletin No. 2, T.O. No. 01-40NC-9
Main Cabin Door #5005505 and Forward Cargo Loading Door #5005832 Revision
Main Cabin Door #5005505 and Forward Cargo Loading Door #5005832 Revision
19-Mar-1941
Service Bulletin No. 197 - Section III
Rework of Anti-Drag Ring
Rework of Anti-Drag Ring
28-Sept-1939
Service Bulletin No. 153 - Section V
Rudder Hinge Bracket Support
Rudder Hinge Bracket Support
1-Jan-1944
Service Bulletin No. 218 - Section I
Revision of the Large Cargo Door Hinges
Revision of the Large Cargo Door Hinges
15-Feb-1943
Service Bulletin No. 77
Rudder Pedal Torque Tube Support Bracket Attachment (2005242)
Rudder Pedal Torque Tube Support Bracket Attachment (2005242)
30-May-1944
Service Bulletin No. 222 - Section I
Increase of Allowable Gross Weight on DC-3
Increase of Allowable Gross Weight on DC-3
4-Mar-1947
Service Bulletin No. 242 - Section X
Replacement of the Carburetor Vapor Vent Tee
Replacement of the Carburetor Vapor Vent Tee
18-Jan-1943
Service Bulletin No. 72
Revision No. 7 to Bulletin No. 263 for DC-3, To add to DC-3S & R4D-8 Effectivity
Revision No. 7 to Bulletin No. 263 for DC-3, To add to DC-3S & R4D-8 Effectivity
6-May-1971
Rework the Master Connecting Link Installation in the Aileron Control Column
Rework the Master Connecting Link Installation in the Aileron Control Column
12-July-1943
Service Bulletin No. 47
Propeller Control Idler Pulley Bracket
Propeller Control Idler Pulley Bracket
3-Sept-1943
Service Bulletin No. 53, T.O. No. 01-40NC-37
Extensible Pump Chute Trigger Revision
Extensible Pump Chute Trigger Revision
29-Jan-1941
Service Bulletin No. 192 - Section V
Resealing of Fuel Tank Filler Neck Seal Ring for C-47 and R4D-1
Resealing of Fuel Tank Filler Neck Seal Ring for C-47 and R4D-1
20-Aug-1942
Service Bulletin No. 25
Inspection and Repair of Cracked Outer Wing Ribs - No. 7 to 10 Inclusive - Stations 125.3, 143.2, 161.1, and 179
Inspection and Repair of Cracked Outer Wing Ribs - No. 7 to 10 Inclusive - Stations 125.3, 143.2, 161.1, and 179
4-June-1945
Service Bulletin No. 18
Cabin Emergency Exit Doors
Cabin Emergency Exit Doors
22-July-1941
Service Bulletin No. 203 - Section III
Instructions for Removal of Cockpit Rear Sliding Windows
Instructions for Removal of Cockpit Rear Sliding Windows
20-Feb-1937
Service Bulletin No. 12
Main Cabin Door Locks
Main Cabin Door Locks
17-Sept-1941
Service Bulletin No. 205 - Section III
Inspection of Skin Under Ice Protection Strips
Inspection of Skin Under Ice Protection Strips
16-Aug-1938
Service Bulletin No. 115 - Section III
Tail Wheel Axle Tow Plug Pin
Tail Wheel Axle Tow Plug Pin
15-Dec-1941
Service Bulletin No. 209 - Section IV
Special Instructions Regarding Draining of Heating and Ventilating System
Special Instructions Regarding Draining of Heating and Ventilating System
17-Dec-1936
Service Bulletin No. 1
Main Cabin Door Locks
Main Cabin Door Locks
3-Oct-1941
Service Bulletin No. 205 - Section III
Wing Flap, Landing Gear Four-Way Valve, and Selector Valve
Wing Flap, Landing Gear Four-Way Valve, and Selector Valve
7-Feb-1940
Service Bulletin No. 171 - Section VI
Rerouting of Engine Oil and Carburetor Vent Lines
Rerouting of Engine Oil and Carburetor Vent Lines
28-Jan-1944
Service Bulletin No. 70
Revised Dump Chute Operating System
Revised Dump Chute Operating System
4-Feb-1941
Service Bulletin No. 193 - Section V
Upper Truss and Hoist Fitting Cutout Rework
Upper Truss and Hoist Fitting Cutout Rework
27-Nov-1944
Service Bulletin No. 194 - Section I
Reinforcement of Aileron Spar
Reinforcement of Aileron Spar
26-April-1944
Service Bulletin No. 224 - Section I
Information Regarding Use of Oversize Holes in Parking Brake Assembly
Information Regarding Use of Oversize Holes in Parking Brake Assembly
22-Sept-1938
Service Bulletin No. 118 - Section IV
Inspection and Adjustment of Brake Linkage
Inspection and Adjustment of Brake Linkage
12-Aug-1937
Service Bulletin No. 58
Replacement of Cluster Fitting Assemblies - Part 4114540, 4114540-1, 4114541, 4114541-1, 2114539 - for C-47
Replacement of Cluster Fitting Assemblies - Part 4114540, 4114540-1, 4114541, 4114541-1, 2114539 - for C-47
24-July-1944
Service Bulletin No. 1
Inspection of Rib Flange which Anchors the Elevator Torque Tube Support Bearing
Inspection of Rib Flange which Anchors the Elevator Torque Tube Support Bearing
22-Sept-1938
Service Bulletin No. 119 - Section I
Flight Wheel Brakes
Flight Wheel Brakes
9-June-1939
Service Bulletin No. 149 - Section IV
Procedure for Adjusting the Wing Flap Mechanism
Procedure for Adjusting the Wing Flap Mechanism
13-Aug-1941
Service Bulletin No. 204 - Section I
Replacement of Elevator Trim Tab Control Horn
Replacement of Elevator Trim Tab Control Horn
27-Mar-1944
Service Bulletin No. 223 - Section I
Reinforcement of Wing Flap Operating Tube Support Beam Attach Angle
Reinforcement of Wing Flap Operating Tube Support Beam Attach Angle
19-June-1945
Service Bulletin No. 216 - Section I
Replacement of Fire Extinguisher Release Cable Conduit
Replacement of Fire Extinguisher Release Cable Conduit
30-Oct-1946
Service Bulletin No. 246 - Section X
Inspection of Flex Hoses in Engine Sections on DC-3, C-47 & C117
Inspection of Flex Hoses in Engine Sections on DC-3, C-47 & C117
27-Nov-1946
Service Bulletin No. 248
Additional Rudder Pedal Attaching Bolt for C-47 & C-117 Series
Additional Rudder Pedal Attaching Bolt for C-47 & C-117 Series
16-July-1946
Service Bulletin No. 101
Inspection and Rework of Globe Valves Used on the Long Range Fuel System
Inspection and Rework of Globe Valves Used on the Long Range Fuel System
2-Mar-1943
Service Bulletin No. 91
Rewiring of Pitot Tube Heater Circuit
Rewiring of Pitot Tube Heater Circuit
24-Feb-1944
Service Bulletin No. 54
Installation of Decalcomania (Decal) on Landing Gear Handle, Move Handle Rapidly, Install Wing Flap and Landing Gear on Hydraulic Panel Sta 86
Installation of Decalcomania (Decal) on Landing Gear Handle, Move Handle Rapidly, Install Wing Flap and Landing Gear on Hydraulic Panel Sta 86
22-Feb-1945
Service Bulletin No. 13
Relocation Vacuum Air Filter
Relocation Vacuum Air Filter
27-Aug-1943
Service Bulletin No. 50
High Temperature O Rings for Engine Oil Shut-Off
High Temperature O Rings for Engine Oil Shut-Off
20-June-1947
Service Bulletin No. 256
Revision of Landing Gear Stops to Provide Clearance for Large Tire
Revision of Landing Gear Stops to Provide Clearance for Large Tire
8-Feb-1943
Service Bulletin No. 78
Provisions for Pyrotechnic Landing Flaze Installation (3 Minutes)
Provisions for Pyrotechnic Landing Flaze Installation (3 Minutes)
2-April-1945
Service Bulletin No. 8
Service Bulletin Index for C-47, C-47A & C-47B
Service Bulletin Index for C-47, C-47A & C-47B
Replacement of Piston Cups and Retaining Washers in the Main Landing Gear Brake Assembly
Replacement of Piston Cups and Retaining Washers in the Main Landing Gear Brake Assembly
11-Jan-1944
Service Bulletin No. 69, T.O. No. 01-40NC-62
Service Bulletin Index for DC-3
Service Bulletin Index for DC-3
15-Nov-1956
Additional Locking Device on Fuel Tank Caps
Additional Locking Device on Fuel Tank Caps
21-May-1937
Service Bulletin No. 31
Suggestions to Prevent Loss of Fuel Tank Caps
Suggestions to Prevent Loss of Fuel Tank Caps
24-Mar-1937
Service Bulletin No. 17
Installation Air Induction System Filter Duct Assembly
Installation Air Induction System Filter Duct Assembly
9-Jan-1943
Service Bulletin No. 10
Installation of Relocated Oxygen Filler Valve
Installation of Relocated Oxygen Filler Valve
4-May-1945
Service Bulletin No. 14
Elevator Tab Push Rod Hood Revision
Elevator Tab Push Rod Hood Revision
4-Dec-1940
Service Bulletin No. 188 - Section I
Wing Tip Structure Alterations
Wing Tip Structure Alterations
14-Sept-1943
Service Bulletin 215 - Section I
Addition of Battery Acid Sump
Addition of Battery Acid Sump
15-Mar-1945
Service Bulletin No. 16, T.O. No. 01-40NC-93
Installation of Flight Engineer's Seat
Installation of Flight Engineer's Seat
7-Dec-1944
Service Bulletin No. 9
Discussion of New Type Spherical Pressure Accumulator
Discussion of New Type Spherical Pressure Accumulator
10-Mar-1939
Service Bulletin No. 142 - Section IV
Information on Heating and Ventilating System Gasket
Information on Heating and Ventilating System Gasket
12-Jan-1939
Service Bulletin No. 134 - Section VII
Approved Reinforcements to Vertical Stabilizer
Approved Reinforcements to Vertical Stabilizer
23-July-1937
Service Bulletin No. 47
Improvements to Stem Regulator - Part 1007586
Improvements to Stem Regulator - Part 1007586
30-Mar-1937
Service Bulletin No. 19
Improvement in Heating System Insulating Material
Improvement in Heating System Insulating Material
17-July-1939
Service Bulletin No. 151 - Section VII
Installation of Cargo Tie-Down Rings & Holder Assembly
Installation of Cargo Tie-Down Rings & Holder Assembly
25-Sept-1942
Service Bulletin No. 31
Safety Rework of Hydraulics Engine Pump Selection System
Safety Rework of Hydraulics Engine Pump Selection System
30-April-1946
Service Bulletin No. 239 - Section VI
Elevator Bus Cable Pulley Bracket - Part 231511
Elevator Bus Cable Pulley Bracket - Part 231511
28-June-1946
Service Bulletin No. 240 - Section I
Reinforcement of Station 390 1/2 Floor Beam
Reinforcement of Station 390 1/2 Floor Beam
1-Jan-1944
Service Bulletin No. 66, T.O. No. 01-40NC-65
Fuel Tank Bay Revisions
Fuel Tank Bay Revisions
14-May-1941
Service Bulletin No. 201 - Section X
Adjustment of Wing Attachment Elastic Stop Nuts
Adjustment of Wing Attachment Elastic Stop Nuts
2-June-1939
Service Bulletin No. 148 - Section I
Addition of Drain Hole on DC-3 Extensible Fuel Dump Chute Assembly
Addition of Drain Hole on DC-3 Extensible Fuel Dump Chute Assembly
9-May-1946
Service Bulletin No. 241 - Section V
Special Maintenance Tools for DC-2, DST, & DC-3 Plumbing
Special Maintenance Tools for DC-2, DST, & DC-3 Plumbing
17-May-1937, JBenetka
Service Bulletin No. 33