# SDR 96ZZZX3401

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Boeing 737*
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Bearing
- Part number: 13863352
- Condition: Failed
- Location: Cabin Fan
- Part time: 39 hours
- Component: Sundstrandem, 5007024620
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX3401

## Discrepancy

BEARING VERY ROUGH CAUSING IMPELLER TO LOCK UP AND FAN PUTS OUT ELECTRICAL SMOKE.  BEARING FAILED AFTER 39.01 HOURS OF OPERATION.

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