# SDR DALA2026082404785

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2026
- Submitted: August 25, 2026
- Operation: Air carrier
- Aircraft: [N536DN](https://openairdocs.org/aircraft/N536DN), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11426
- Aircraft time: 13,520 hours, 3,351 cycles
- Engine: Iae PW1133GAJM
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Nr 2 Engine
- 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/DALA2026082404785

## Discrepancy

MUSTY VINEGAR SMELL IN CABIN DURING DESCENT AT 10,500FT. PASSENGERS FROM COMFORT PLUS TO THE LAST ROW IN MAIN CABIN NOTICED THE ODOR.  ODOR WENT AWAY WITHIN 10 MINUTES.  FOUND MINOR PUDDLE OF OIL ON NR 2 ENGINE. REPLACED FAN SHAFT COVER SEAL OUT OF PRECAUTION AS PER AMM 72-15 LEAK CHK OK. PERFORMED LVL A DECONTAMINATION OF THE ECS IAW AMM 21-00-00-615-802-A. (LP 9499122, 1771459 - AIRCRAFT WAS GROUNDED)

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