# SDR DALA2025111808411

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2025
- Submitted: November 18, 2025
- Operation: Air carrier
- Aircraft: [N549DN](https://openairdocs.org/aircraft/N549DN), 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: 11693
- Aircraft time: 8,455 hours, 2,037 cycles
- Engine: Iae PW1133GAJM
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Seal
- Condition: Bypassing
- Location: Nr 2 Fan Shaft
- 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/DALA2025111808411

## Discrepancy

CABIN REPORTED " DIRTY SOCKS" FWD CABIN AND BURNED RUBBER SMELL AFT CABIN BRIEFLY ON BASE / FINAL TURN BEFORE LANDINGS. SMELL CLEARED AFTER A MINUTE OR TWO.   FOUND NBR 2 FAN SHAFT SEAL BYPASSING OIL. REPLACED FAN SHAFT SEAL NBR 2 ENGINE PER A321 AMM 72-11-01. (LP 8139228)

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