PurposeUSED TO SECURE THE WORM GEAR WHEN ASSEMBLING AND DISASSEMBLING THE AUTOTHROTTLE GEARBOX 254W4140. USED IN CONJUNCTION WITH THE A22004 AUTOTHROTTLE GEARBOX CHECKING FIXTURE AND 3/8" SQUARE DRIVE TORQUE WRENCH (CUSTOMER FURNISHED).Airplane737, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777-8, 777-9, 777FUsage CodeOVERHAUL 