TEST CABLE - POTABLE WATER QUANTITY XMTR
PurposeUSED TO PROVIDE ELECTRICAL ACCESS TO WATER TANK QUANTITY TRANSMITTER FOR CALIBRATION. THE TEST BOX IS USED TO PROVIDE ELECTRICAL ACCESS TO THE 6251-1 WQMS CONTROL MODULE VIA THE CALIBRATION AND DEBUG PORT ON AIRPLANE MODEL 747-8 AND 777.Airplane737Usage CodeMAINTENANCE 