# SDR YENA201710210857

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2017
- Submitted: October 23, 2017
- Operation: Air carrier
- Aircraft: [N923JB](https://openairdocs.org/aircraft/N923JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5960
- Aircraft time: 15,302 hours, 2,932 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 164904562
- Condition: Failed
- Location: Extract Blower
- Part time: 15,307 hours, 2,933 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/YENA201710210857

## Discrepancy

ODOR OF ELECTRICAL BURNING DURING DESCENT.  DETECTED POSSIBLE VIBRATION FROM AREA OF AVIONIC EXTRACT SIDE.  STATUS SHOWS CLASS II SMOKE, EXTRACT FAN - NO AVNCS SYS FAULT ECAM CAUTION.   R & R THE EXTRACT BLOWER FAN IAW AMM 21-26-02A,. OPS CHECKED GOOD.

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