# SDR 2011FA0000431

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2011
- Submitted: June 30, 2011
- Operation: General aviation
- Aircraft: [N4577](https://openairdocs.org/aircraft/N4577), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S8285
- Aircraft time: 1,650 hours
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Alternator
- Part number: 991059111
- Condition: Failed
- Location: Engine
- Part time: 1,650 hours
- Stage of operation: CR
- 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/2011FA0000431

## Discrepancy

COMPLETE ELECTRICAL FAILURE IN CRUISE WITHOUT ANY INDICATION OR WARNING.  PROBLEM TRACED TO FAULTY ALTERNATOR.

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