As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED ODOR SHORTLY AFTER TAKEOFF. EVENT ALSO OCCURRED ON ENGINE START AND TAXI OUT BUT WAS ALSO EXPERIENCED THE ODOR ON TAXI-IN AND SHUT DOWN. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)