# SDR DALA2025102207730

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2025
- Submitted: October 22, 2025
- Operation: Air carrier
- Aircraft: [N531DA](https://openairdocs.org/aircraft/N531DA), 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: 11329
- Aircraft time: 10,619 hours, 2,630 cycles
- Engine: Iae PW1133GAJM
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Spinner
- Condition: Leaking
- Location: Zone 400
- Stage of operation: IN
- How discovered: V
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025102207730

## Discrepancy

DURING ARRIVAL, DESCENDING THROUGH 8000'. BOTH PILOTS NOTICED A DIRTY SOCK SMELL. FLIGHT ATTENDANTS CONFIRMED THE ODOR. BOTH PILOTS DONNED 02 MASKS. AFTER ARRIVAL, APU WAS STARTED AND NO ODOR NOTICED.   FOUND NBR 1 ENG SPINNER WET WITH OIL. REPLACED NBR 1 INLET SPINNER BEARING COVER SEAL PER A321 AMM 72-11. NO LEAKS NOTED. (LP 7619980)

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