# SDR DALA2025092006894

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 2025
- Submitted: September 20, 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: 10,312 hours, 2,553 cycles
- Engine: Iae PW1133GAJM
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025092006894

## Discrepancy

DIRTY SOCK SMELL NUMEROUSE TIMES LASTING AROUND 1-2 MINS. EACH TIME. REF QRH+ USED OXY MASKS UNABLE TO ISOLATE DUE TO QUICK DURATION OF SMELL.   FOUND NOSE CONE SPINNER SEAL LEAKING. REPLACED NOSE CONE SPINNER SEAL IAW PW 1100G ENG MANUAL 72-11. PERFORMED DECONTAMINATION TYPE A+ TYPE B. (LP 7317954, 1207850)

---
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.