# SDR CA100805003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2010
- Submitted: January 4, 2011
- Operation: General aviation
- Make and model: Cessna 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (OpenAirDocs)
- Aircraft time: 10,224 hours
- Engine: Lyc O320D2J
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Volt Regulator
- Part number: DG3
- Condition: Unserviceable
- Location: Alternator
- Part time: 805 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA100805003

## Discrepancy

SUSPECT THE VOLT CONTROL WENT U/S AND ALLOWED THE FULL VOLT CARGO OF THE ALTERNATOR TO OVERCHARGE THE SYS SHORTING OUT THE MAIN ALTERNATOR C/B CAUSING SMOKE IN THE COCKPIT.

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