There is 1 drawing for part 99-4226 available in AirCorps Library

Manufacturer's drawing for Boeing Aircraft Corporation B-17 Flying Fortress. Drawing number 99-4226
Manufacturer's Drawing
Boeing Aircraft Corporation,   B-17 Drawings - Early,   Page: --,   Revision: q  
EXTENSION ASSY. SUPCHG. EXHAUST GAS (TEST ONLY)
Associated Aircraft:   B-17  

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