As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL IN AFT CABIN. MAINTENANCE FOUND APU LEAKING OIL**SUPPLEMENTAL REPORT FOR AALA202108120940: REPLACED APU OIL COOLER ASSEMBLY AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-91-44** (CLOSED)