# SDR CA040629007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2004
- Submitted: December 3, 2004
- Operation: General aviation
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft time: 2,589 hours
- Engine: Lyc IO360L2A
- Propeller: Mcauly 1C235LFA
- System (JASC): [2430 · DC Generating System](https://openairdocs.org/jasc/2430)
- Part: Capacitor
- Part number: S19151
- Condition: Chafed
- Location: Alternator
- Component: Alternator, Aero
- Component part number: 991059111
- Stage of operation: CR
- How discovered: O
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA040629007

## Discrepancy

(CAN) INTERMITTANT OCCURRENCE OF ALTERNATOR FAILING TO STAY ON LINE.  INCORRECT POSITIONING OF CAPACITOR ALLOWED UNIT TO CHAFE AGAINST ENGINE BAFFLING UNTIL INTERNAL PORTION WAS EXPOSED CAUSED INTERMITTENT SHORT.

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