# SDR AALA201803069007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2018
- Submitted: March 21, 2018
- Operation: Air carrier
- Aircraft: [N580UW](https://openairdocs.org/aircraft/N580UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6133
- Aircraft time: 12,962 hours, 5,055 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 164904866
- Condition: Odor
- Location: Extract
- Part time: 12,982 hours, 5,063 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201803069007

## Discrepancy

DURING CRUISE AT FL 280,  A LOUD WHIRRING NOISE AND ELECTRICAL SMOKE FILLED THE COCKPIT. ACCOMPLISHED SMOKE/FUMES CHECKLIST AND MADE A DIVERSIONARY LANDING INTO ABQ. EMERGENCY DELCARED, FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND VENT EXTRACT FAN TO BE THE SOURCE OF ODOR.  REPLACED EXTRACT BLOWER FAN IAW AMM 21-26-51.

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