PurposeUSED IN CONJUNCTION WITH EITHER THE HYDRAULIC TELESCOPING JACK OR THE BOOM HOIST AND LOAD POSITIONER (USED WITH JACK OR HOIST) TO REMOVE AND INSTALL THE IDG FROM THE ENGINEAirplane767, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777FUsage CodeMAINTENANCE 