As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 5024 UPON DESCENT JFK FA'S REPORTED DIRTY SOCK BURNT RUBBER SMELL IN CABIN. NO PERCEPTABLE SMELL IN COCKPIT, APU OFF. CORRECTIVE ACTION: FOUND OIL PUDDLE BEHIND SPINNER OF #2 ENGINE. R/R FAN SHAFT COVER SEAL PER A321 AMM 72-15 (6862980)