PurposeUSED TO INTERFACE WITH THE NETWORK FILE SERVER (NFS) USING THE ONBOARD NETWORK SYSTEM (ONS) MAINTENANCE APPLICATION; AND THE AIRPLANE MAINTENANCE OPERATION FUNCTIONS USING THE MAINTENANCE ACCESS TERMINAL APPLICATION. ACCESS TO EACH OF THE AIRPLANE SYSTEMSAirplane737, 747, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777-8, 777-9, 777FUsage CodeMAINTENANCE 