What was found
ETOPS SIGNIFICANT SYS - FOUND ON OVERNIGHT CHECK EICAS MAINT MSG RT PIMU BITE RT PIMU FAULT EEC CH A AOC TR-CK FAIL. T/S IAW FIM PIMU MAINT INDEX CODE 351-23 REMOVED, INSPECTED AND CLEANED AOC CONNECTOR W3P17 AND REINSTALLED CONNECTOR, PERFORMED REPAIR CONFIRMATION WITH ENGINE RUNNING- FAULT DID NOT RETURN -RT ENGINE AOC, CHECKS GOOD.