As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON DECENT, FLIGHT ATTENDANTS REPORTED BURNING RUBBER SMELL LOCALIZED IN BACK. CREW ACCOMPLISHED SMOKE/ FUMES CHECKLIST. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU WHICH WAS FOUND TO BE LEAKING OIL. **ORIGINAL REPORT WAS AALA202210067912** MAINTENANCE FOUND THE APU OIL COOLER AND THE APU OIL COOLING FAN (AALA202210185553) LEAKING OIL AND REPLACED THEM PER AMM 49-91-44 AND AMM 49-52-51. A SATISFACTORY LEAK CHECK WAS ACCOMPLISHED.