As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT BELOW 11,000 FEET STRONG DIRTY SOCK SMELL DISSIPATED ON GROUND WHEN SWITCHING BLEEDS TO APU. PERFORMED AND C/W MUST DO LOG 1210407 FOUND OIL PUDDLED AT BASE OF FAN HUB ON # 1 ENGINE REMOVED SPINNER AND FAN SHAFT COVER PER A321 AMM 72-11 INSTALLED NEW SEALS ON FAN SHAFT COVER AND SPINNER AND REINSTALLED PER A 321 AMM 72-11 PERFORMED WATERWASH. (LP 7330330)