As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 5043, DURING PREFLIGHT APU BLEED WAS TURNED ON AND SHORTLY AFTER GOT DIRTY SOCK SMELL FROM AIR CONDITIONING VENTS. APU BLEED TURNED OFF & SMELL WENT AWAY. CORRECTIVE ACTION: WHILE WORKING SMOKE/FUMES W/C 0550-2002 FOUND OIL WETTING IN #1 SPINNER CAP. REPLACED PACKING PER A320 AMM 72-15. (LP 6906862, 6906863)