# SDR AALA202104209013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2021
- Submitted: April 20, 2021
- Operation: Air carrier
- Aircraft: [N926UW](https://openairdocs.org/aircraft/N926UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6618
- Aircraft time: 19,251 hours, 7,497 cycles
- Engine: Iae V2533A5
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Ring
- Condition: Unserviceable
- Location: Zone 400 - Nac/P
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202104209013

## Discrepancy

AIRCRAFT WAS GROUNDED: OIL MIST ODOR, VERY PRONOUNCED ON DESCENT WITH HP BLEEDS OPEN. ODOR DISSIPATED AFTER TURNING OFF ENGINE #1 BLEED.  POST FLIGHT INSPECTION SHOWS POSSIBLE OIL ON AIRCRAFT BELLY.  REPLACED DEOILER SEAL (AALA202104099009) AND MATING RING (AALA202104209013) ON LEFT ENGINE IAW AMM 72-60-31.

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