# SDR CA031205005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2003
- Submitted: January 5, 2004
- Operation: General aviation
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft time: 4,307 hours
- Engine: Lyc O320E2D
- Propeller: Mcauly 1C160DTM
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Wire Harness
- Condition: Burned
- Location: Alternator
- Stage of operation: TX
- How discovered: O
- Nature of condition: H
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA031205005

## Discrepancy

(CAN) PILOT NOTICED HIGH VOLTAGE LIGHT- ELECTRICS TURNED OFF - RETURNED TO BASE. CONTACT WITH TOWER BY CELL PHONE.- ON INSPECTION AT AMO FACILITY IT WAS LEARNED THAT THE WIRING HARNESS TO THE ALTERNATOR FAILED/SHORTED OUT.- REPAIRS TO THE HARNESS WAS MADE AND THE AIRCRAFT RETURNED TO SERVICE.

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