PurposeUSED FOR INTERFACE BETWEEN THE POWER ELECTRONICS COOLING SYSTEM (PECS), INTEGRATED COOLING SYSTEM (ICS), FORWARD CARGO AIR CONDITIONING (FCAC), HIGH VOLTAGE DIRECT CURRENT MOTOR CONTROLLER (HVDC MC), SUPPLEMENTAL COOLING UNIT (SCU), CARGO REFRIGERATION UNAirplane787-10, 787-8, 787-9Usage CodeMAINTENANCE 