# SDR 98ZZZX4256

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N111KF](https://openairdocs.org/aircraft/N111KF), registered now
- Make and model: Beech 95-B55
- Registry model: [Beech 95-B55](https://openairdocs.org/model/beech-95-b55) (OpenAirDocs)
- Aircraft serial: TC633
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Citcuit Breaker
- Part number: 72772
- Condition: Failed
- Location: Cockpit
- Component: Klixon
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX4256

## Discrepancy

TECHNICIAN WAS CYCLING CIRCUIT BREAKERS DURING ANNUAL INSPECTION.  TWO CIRCUIT BREAKERS WOULD NOT OPEN.  A 1-AMP AND 3-AMP BREAKER POWERING AVIONICS AUDIO SYSTEM WERE REPLACED.  AS A PRECAUTION TO PREVENT FIRE HAZARD FROM NOT TRIPPING, 1-AMP BREAKER DID DISENGAGE WITH MUCH FORCE AND A PAIR OF PLIERS.  ELECTRICALLY, BREAKERS HAD NOT FAILED.  MECHANICAL FAILURE POSSIBLY DUE TO AGE.  SUBMITTER SUGGESTED CYCLING BREAKERS PERIODICALLY.

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