# SDR DALA2025102407781

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2025
- Submitted: October 24, 2025
- Operation: Air carrier
- Aircraft: [N548DN](https://openairdocs.org/aircraft/N548DN), 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: 11620
- Aircraft time: 7,906 hours, 1,863 cycles
- Engine: Iae PW1133GAJM
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025102407781

## Discrepancy

DURING DESCENT AROUND 11,000 FT AFTER SELECTING ENGINE A/ICE SWITCH ON A VERY LIGHT DIRTY SOCK SMELL CAME THROUGH THE COCKPIT AND CABIN. IT LASTED FOR APPOX 1 MINUTE THEN CLEARED.  ACCOMPLISHED W/C 0550-2002 FOUND WETTING BEHIND NR 1 ENGINE SPINNER. REPLACED NR 1 ENGINE FAN SHAFT COVER & GASKET REF A321 AMM 72-15. C/W W/C 2100-2005 FOR LEVEL B DECON. (LP 7204132)

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