As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: UPPON INITIAL DESCENT INTO CLT, STRONG SMELL WAS NOTICED THROUGHOUT THE CABIN AND COCKPIT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO AN INTERNAL OIL LEAK ON THE APU. **SUPPLEMENTAL REPORT FOR AALA202209216508: REPLACED APU PER TASK CARD 26L31049003.** (CLOSED)