60-23-04 PRATT & WHITNEY: Amdt. 215 Part 507 Federal Register November 4, 1960.
Applies to Turbo Wasp JT3C-7 Turbojet Engines Prior to Serial Number P632425B and all JT3C-6 Turbojet Engines.
Compliance required at first engine overhaul after December 15, 1960. To prevent failure of the bevel accessory drive gearshaft and resultant loss of engine power, replace P/N 350460 gearshaft with P/N 401493 gearshaft.