PurposeUSED TO DRAIN AIRPLANE FUEL TANKS THROUGH THE MAIN OR OVERRIDE FUEL PUMP HOUSING. THIS TOOL REMOVES FUEL THROUGH THE PUMP SLEEVE VALVES WHEN AIRPLANE POWER IS NOT AVAILABLEAirplane777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777-8, 777-9, 777FUsage CodeMAINTENANCE 