As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS OF ODOR ON DESCENT OF A MUSTY ODOR. DURING TROUBLESHOOTING, IT WAS DISCOVERED THAT APU WAS LEAKING OIL. REMOVED AND REPLACED APU. **SUPPLEMENTAL REPORT FOR AALA202209013417: APU REPLACED.** (CLOSED)