# SDR AALA201902019009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2019
- Submitted: February 1, 2019
- Operation: Air carrier
- Aircraft: [N134AN](https://openairdocs.org/aircraft/N134AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6495
- Aircraft time: 12,304 hours, 4,740 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: FAN0012
- Part serial: 164905565
- Condition: Failed
- Location: Extraction
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201902019009

## Discrepancy

AFTER TAKEOFF, AT APPROXIMATELY 18,000 FT,  FELT A LOUD BANG UNDER FOOT,  FOLLOWED BY A VIBRATION.  THE VIBRATION NEVER WENT AWAY FOLLOWED BY AN ELECTRICAL ODOR.  FAS FELT THE VIBRATION IN THE FIRST CLASS GALLEY. ACCOMPLISHED W/C 05-96-70, AND FOUND THE FWD E/E EXTRACTION FAN HAD FAILED AND THE CIRCUIT BREAKER TRIPPED.  REMOVED AND REPLACED THE FAN IAW MM 21-26-51. OPS AND LEAK CHECKED GOOD.

---
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.