What was found
DURING OVERNIGHT CHECK, A OIL LEAK WAS DETECTED ON LEFT ENGINE. DEOILER SEAL WAS REPLACED AND LEAK CONTINUED. AIR CODITIONING AND PRESSURIZATION TEST WERE PERFORMED AND OIL ODOR WAS DETECTED IN PASSENGERS CABIN AND RIGHT LAVATORY SMOKE ALARM WAS ACTIVATED. LEFT ENGINE WAS REPLACED AND TESTED IAW MPCM 71-00-02 AND 71-00-01, RESPECTIVELY, ALL CORRECT. ADDITIONALLY, TURBINE COOLING, FLOW CONTROL VALVE AND BOTH WATER SEPARATORS WERE REPLACED IAW MM 21-51-01, 21-31-02, 21-20-02, RESPECTIVELY, ALL CORRECT.