# SDR AALA2019122439003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2019
- Submitted: December 25, 2019
- Operation: Air carrier
- Aircraft: [N107NN](https://openairdocs.org/aircraft/N107NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5938
- Aircraft time: 21,394 hours, 4,391 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Ducted Fan
- Part number: EVT3454HM01
- Part serial: 164904466
- Condition: Failed
- Location: Extract
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2019122439003

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT REPORTS DURING PUSHBACK SMELLED ELECTRICAL ODOR. SHORTLY AFTERWARD HEARD LOUD GRINDING NOISE. ODOR DETECTED IN FLIGHT DECK. MAINTENANCE REMOVED AND REPLACED EXTRACT AND BLOWER FAN IAW AMM 21-26-51. OPS CHECK GOOD, OK FOR SERVICE.

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