PurposeUSED TO LIFT THE FORWARD OR AFT END OF THE MAIN LANDING GEAR TRUCK WHEN THERE IS INSUFFICIENT CLEARANCE TO PLACE JACKS AT THE NORMAL FORWARD AND AFT JACKING LOCATIONS. ONCE SUFFICIENT CLEARANCE IS OBTAINED, JACKS CAN BE PLACED AT THE NORMAL FORWARD AND AFAirplane787-8Usage CodeMAINTENANCE 