What was found
DURING TRANSIT CHECK, IT WAS DETECTED AN OIL LEAK IN THE LEFT ENGINE. MAINTENANCE PERSONNEL PERFORMED ENGINE LEAKING INSPECTION IAW AMM 71-00-00 DETECTING AN OIL LEAK ON AFT SUMP ROTATING SEAL, CCM ENGINE ENGINEER EVALUATED THE OIL LEAK AND FOUND IT WITHIN OPERATIONAL LIMITS IAW AMM 71-00-00. AT MEX, DURING OVERNIGHT CHECK, THE BEARING HOUSING NUMBER 5 WAS CLEANED, THE GASKETS AND PACKING’S WERE REPLACED IAW AMM 72-56-00, AMM 78-11-01 AND AMM 78-11-02, AFTER IT WAS STARTED AND ENGINE OPERATIONAL TEST WAS PERFORMED IAW AMM 71-71-00 TEST 3A, NO CONFIRMING FUEL LEAK, ALL CORRECT.