PurposeUSED TO PERFORM A SWITCH CONTINUITY TEST ON THE PITCH TRIM CONTROL FORWARD QUADRANT ASSEMBLY (251W4439 REF). USED IN CONJUNCTION WITH A33003 BREAKOUT BOX, CUSTOMER FURNISHEDAirplane777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777FUsage CodeOVERHAUL 