# SDR AALA201612099003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2016
- Submitted: December 13, 2016
- Operation: Air carrier
- Aircraft: [N551UW](https://openairdocs.org/aircraft/N551UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4940
- Aircraft time: 18,009 hours, 6,588 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Blower
- Condition: Malfunctioned
- Location: Zone 200
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201612099003

## Discrepancy

AIRCRAFT WAS NOT GROUNDED. UNUSUALLY LOUD BLOWER MOTOR WITH UNUSUAL SOUND AND ELECTRICAL SMELL. NO STRANGE SOUND OR SMELLS WITH BLOWER OFF. REPLACED AVIONICS BLOWER FAN PER AMM 21-26-51.

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