What was found
WHEN PULLING INTO GATE, F/A NOTIFIED CREW OF SMOKE IN CABIN, PERFORMED IAC FOR EVACUATION, DID NOT DISCHARGE LT OR RT ENGINE FIRE BOTTLE OR APU FIRE BOTTLE, LSU SMOKE DETECTOR WENT OFF BOTH PACKS WERE RUNNING ON APU BLEED AIR FOR APPROX 3 MINUTES. RAN BOTH PACKS ON APU AND ENGINE BLEED AIR, RT PACK TEMP CLIMBS RAPIDLY AND PRODUCES STRANGE OIL ODOR AND SMOKE. LT PACK OPERATES NORMALLY PLACED RT PACK ON MEL. CREW RAN ENGINES AND APU AND CW SUP 09-037A LT PACK OPS NORMALLY PLACED RT PACK ON MEL. R & R RT COALESCER BAG AS REQUESTED IAW MX TASK CARD MANUAL 000-21-310-003 WHERE APPLICABLE.