# SDR AALA202403079192

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2024
- Submitted: March 7, 2024
- Operation: Air carrier
- Aircraft: [N524UW](https://openairdocs.org/aircraft/N524UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3977
- Aircraft time: 49,225 hours, 18,526 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Component: Apu, Hnywl
- Component part number: 38007081
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202403079192

## Discrepancy

AIRCRAFT WAS GROUNDED: ON ARRIVAL,4000' FLIGHT ATTENDANTS NOTIFIED FLIGHT DECK  OF SEVERE FUMES, BURNING SMELL IN THE MIDDLE TO AFT CABIN. HAZE, NO SMOKE. BURNING EYES, DIFFICULT BREATHING, CHOKING, COUGHING. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU AFTER FINDING EVIDENCE OF AN OIL LEAK. **SUPPLEMENTAL REPORT WILL BE SUBMNITTED ** (OPEN)

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