# SDR AALA202507144257

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2025
- Submitted: July 14, 2025
- Operation: Air carrier
- Aircraft: [N159AN](https://openairdocs.org/aircraft/N159AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7034
- Aircraft time: 28,867 hours, 11,389 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HM01
- Part serial: 10743
- Condition: Faulted
- Location: Zone 100
- Part time: 17,490 hours, 7,826 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202507144257

## Discrepancy

AIRCRAFT WAS GROUNDED: VENT EXTRACT FAULT ECAM DURING DESCENT. SLIGHT VIBRATION AND ODOR JUST PRIOR TO ECAM. MAINTENANCE REPLACED EXTRACT BLOWER FAN (18HQ) AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 21-26-51 WITH NO FAULTS NOTED.

---
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.