What was found
FLT#123, JFK-LAX. (ETOPS) 'ENG 1 FADEC SYS FAULT ENG 2 MINOR FAULT OIL SENSOR FAULT ENG 3 TURB COOL FAULT; REMOVED AND REPLACED OF ENG #2 EEC ( ELECTRONIC ENGINE CONTROL ) IAW AMM 73-21-01-400-801-A, 2 IDLE ENG #2 RUNS FOR OPERATIONAL CHECK, ACCOMPLISHED & SUCCESSFUL. NO FAULTS ON ECAMS. CAT III OPERATIONAL TEST ACCOMPLISHED REF LP # 4066066, #1. OK FOR SVC.'