# SDR CA140304007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2014
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Pilats PC1247
- Aircraft time: 8,373 hours
- Engine: Pwa PT6A67B
- Propeller: Hartzl HCE4A3D
- System (JASC): [2435 · Starter-Generator](https://openairdocs.org/jasc/2435)
- Part: Bearing
- Condition: Failed
- Location: Starter Gen
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA140304007

## Discrepancy

(CAN) AN ENGINE VIBRATION WAS NOTICED BY PILOT DURING CRUISE FLIGHT, THAT GOT WORSE AFTER LANDING.  THE CAUSE OF THE ENGINE VIBRATION AND BLACK EXHAUST STAIN FROM ST/GEN EXHAUST PORT WAS DETERMINED TO BE THE FAILURE OF THE STARTER/GENERATOR`S REAR BEARING. THE BEARING HAD DETERIORATED TO THE POINT THAT THE FAN WAS RUBBING ON THE REAR DUCT/COVER.  THERE WAS 47.2 HRS REMAINING UNTIL O/H.

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