# SDR DALA2025102707895

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2025
- Submitted: October 27, 2025
- Operation: Air carrier
- Aircraft: [N539DN](https://openairdocs.org/aircraft/N539DN), 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: 11479
- Aircraft time: 9,935 hours, 2,448 cycles
- Engine: Iae PW1133GAJM
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Seal
- Condition: Leaking
- Location: Engines
- 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/DALA2025102707895

## Discrepancy

AIRCRAFT 5039, SHORTY AFTER TAKEOFF FA SMELLED TO REPORT CHEMICAL/ELECTRICAL SMELL ALL PAX AND FS SMELLED IT. RAN SMOKE AND FUMES CHECKLIST SMELL DISAPATED AFTER PILOTS SMELLED ACRID SMELL FOR A MOMENT AS WELL. CORRECTIVE ACTION: T/S PER AMDS W/C 0550-2002 FOUND EVIDENCE OF OIL FROM BOTH ENGINE INLET SPINNERS. REPLACED #1 AND #2 FAN SHAFT COVER SEALS PER A321 AMM 72-15 PERFORMED IDLE RUN AND LEVEL B DECONTAMINATION PER A321 AMM 21-00. (LP 7878984)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.