What was found
FLT#523, JFK-LAX. (ETOPS) ENG 2 FADEC SYS FAULT; R & R WIRE HARNESS WO4 4088K REF L/P 3569608 (FOUND OPEN WIRE 3" BACK FROM CONNECTOR P63 ON #2 ENGINE N2 (4065KS). R & R HARNESS W04 ON #2 ENGINE PER MM 73-21-64.). IDLE CHK PASS. FAULT CLEAR ENG #2. [ REF L/P 3569602, ITEM 1(ENG 2 FADEC SYS FAULT) . FOUND ENG 2 W03 EEC HARNESS DAMAGED NEAR CONNECTOR P64.REMOVED AND REPLACED #2 ENG W03 EEC HARNES PER AMM 73-21-63 PB 401. FOLLOWING TSM 77-11-00-810-811-A. W03 WAS R & R WITH NO HELP. R & R N2 TRANSDUCER [4065KS] ON ENG 2 PER AMM77-11-23 PB 401. FAULT REMAINS, FURTHER T/S IS REQUIRED. R & R #2 ENG EEC PER AMM 73-21-01 PB 401 CONF 21 NO HELP W/ORIGINAL FAULT ENG 2 FADEC FAULT N2 SENSOR SYS.