As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: MUSTY ODOR REPORTED ON DECENT AT 4000 FT IN AFT CABIN. **SUPPLEMENTAL REPORT FOR AALA202108317065: REPLACED APU OIL COOLING FAN AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 49-52-51** (CLOSED)