# SDR AU510002096

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2005
- Submitted: June 6, 2006
- Operation: General aviation
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Engine: Lyc TIO540J2BD
- System (JASC): [2410 · Alternator-Generator Drive](https://openairdocs.org/jasc/2410)
- Part: Pulley
- Condition: Loose
- Location: Alternator
- Component: Alternator
- Component part number: ALU8521R
- Stage of operation: DE
- How discovered: O
- Nature of condition: H
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU510002096

## Discrepancy

ALTERNATOR DRIVE PULLEY CAME LOOSE AND DAMAGED ALTERNATOR COOLING FAN.  A PIECE OF THE COOLING FAN CAME OFF AND ENTERED THE ALTERNATOR CAUSING AN INTERNAL SHORT CIRCUIT.

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