# SDR 95ZZZX3464

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 8, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N80534](https://openairdocs.org/aircraft/N80534), registered now
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft serial: 17266691
- System (JASC): [2436 · DC Regulator](https://openairdocs.org/jasc/2436)
- Part: Regulator
- Part number: D4FF10316
- Condition: Failed
- Location: Dc System
- Part time: 3,844 hours
- Stage of operation: NR
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX3464

## Discrepancy

VOLTAGE REGULATOR FAILED AND OVERVOLTAGE CONDITION DAMAGED AVIONICS.  AS VOLTAGE CLIMBED AND CIRCUIT (50A) BREAKER OPENED, AN ARC DEVELOPED WHICH MELTED THE BI-METAL ELEMENT TO .1250 INCH BACK FROM CONTACT CAUSING SMOKE IN COCKPIT.  VERY HIGH VOLTAGE IS REQUIRED TO DO THIS TYPE OF DAMAGE.  PARTS NOT AVAILABLE UNTIL 9-30-95.

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