What was found
AIRCRAFT 3275, UPON SHUTDOWN STRONG FUME SMELL IN COCKPIT FROM #1 ENGINE. #2 ENGINE HAS BEEN SHUTDOWN FOR 5 MINS WITH NO SMELL. CORRECTIVE ACTION: DETERMINED EXTERNAL OIL LEAK FROM LEFT ENGINE OTBD THRUST REVERSER OPENING ACTUATOR. REPLACED ACTUATOR PER A320 AMM 78-36-51. LEFT ENGINE INBD ACTUATOR CURRENTLY ON CDL. C/W ALL STEPS OF AMDS CARD 7900-2001. (ENGINE OIL ODOR) PERFORMED PACK BURNOUT PER AMDS CARD 2100-2003 AND REPLACED CABIN AIR FILTERS. (LP 4665410)