What was found
DURING THE OVERNIGHT AT MEX STATION AND IN ACCORDANCE WITH EO 3772005 R4 OF LEFT ENGINE FAN DISK PRESSURE FACES INSPECTION, IT WAS DETECTED A DENT IN THE FAN BLADE ROOT NUMBER 3 AND 12, IAW AMM IT WAS NOT ALLOWED DAMAGES IN THAT AREA. SO THE LEFT ENGINE FAN BLADE P/N 340-000-410-0, MANUFACTURER CFM NUMBERS 3 AND 12 WERE REPLACED. IAW AMM 72-21-02-400-801-F00. FAN BLADE COMPLETE SET WAS LUBRICATED, IAW AMM 72-21-00 AND TEST 7 VIBRATION SURVEY WAS PERFORMED, IAW AMM 71-00-00, TESTED CORRECT.