# SDR AALA20161022001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2016
- Submitted: October 26, 2016
- Operation: Air carrier
- Aircraft: [N9625W](https://openairdocs.org/aircraft/N9625W), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53595
- Aircraft time: 51,853 hours, 25,282 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 6054578
- Part serial: 1098260
- Condition: Odor
- Location: Zone 100
- Part time: 26,004 hours, 11,077 cycles
- Stage of operation: TX
- 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/AALA20161022001

## Discrepancy

AIRCRAFT WAS GROUNDED.  THE CREW REPORTED A STRONG ELECTRICAL BURNING SMELL THROUGHOUT THE AIRCRAFT WHEN PACKS TURNED ON WITH POWER TRANSFER FROM EXTERNAL POWER TO APU.  MAINTENANCE ACCOMPLISHED MCM CARD 21-96-01 AND NOTED ODOR FROM RECIRCULATION FAN.  REMOVED AND REPLACED THE RECIRCULATION FAN IAW AMM 21-20-12.  OPERATIONAL CHECK NORMAL.

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