PurposeUSED FOR TROUBLESHOOTING AIRPLANE SYSTEM WIRING TO AND FROM POWER CONVERSION PANELS P500 AND P600. IT CAN BE INSERTED IN-LINE BETWEEN THE POWER CONVERSION PANEL AND AIRPLANE WIRING (EXCEPT FOR PANEL J001 AND AIRPLANE P001) FOR LIVE SYSTEM MONITORING.Airplane787-10, 787-8, 787-9Usage CodeMAINTENANCE, OVERHAUL 