# SDR 2010FA0000515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2010
- Submitted: May 28, 2010
- Operation: General aviation
- Aircraft: [N7AS](https://openairdocs.org/aircraft/N7AS), registered now
- Make and model: Beech 35-C33A
- Registry model: [Beech 35-C33A](https://openairdocs.org/model/beech-35-c33a) (OpenAirDocs)
- Aircraft serial: CE169
- Engine: Cont IO520*
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Rotor Shaft
- Condition: Sheared
- Location: Alternator
- Component: Alternator
- Component part number: ALX9524R
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2010FA0000515

## Discrepancy

ALTERNATOR FAILED IN FLIGHT. THIS IS THE 3RD FAILURE IN LESS THAN 100 HRS (18HRS, 17HRS, & 36HRS) THE PREVIOUS (2) WERE REPLACED UNDER WARRANTY. ALL (3) HAVE HAD IDENTICAL ROTOR SHAFT TORSIONAL FAILURE JUST INTERNAL TO THE ALTERNATOR BETWEEN THE FAN AND THE INBD BEARING.

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