# SDR 98ZZZX2277

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N1943M](https://openairdocs.org/aircraft/N1943M), registered now
- Make and model: Cessna 210M
- Registry model: [Cessna 210M](https://openairdocs.org/model/cessna-210m) (OpenAirDocs)
- Aircraft serial: 21061968
- System (JASC): [2430 · DC Generating System](https://openairdocs.org/jasc/2430)
- Part: Circuit Breaker
- Part number: S159660L
- Condition: Failed
- Location: Alternator Out
- Part time: 2,150 hours
- Stage of operation: CR
- Nature of condition: H
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX2277

## Discrepancy

WHILE EN ROUTE, LOST COMPLETE ELECTRICAL POWER IN TOTAL IFR CONDITIONS WITH ZERO VISIBILITY.  PWM MAINTENANCE COULD NOT DUPLICATE THE PROBLEM.  AIRCRAFT DEPARTED AND THE SAME CONDITION OCCURRED AGAIN.  THE CIRCUIT BREAKER WAS REPLACED AND THE CONDITION WAS NEVER DUPLICATED AGAIN.  FOUND ALTERNATOR OUTPUT CIRCUIT BREAKER KEPT TRIPPING AT A LOAD WELL BELOW ITS RATED VALUE.  UNSURE HOW THIS COULD BE PERIODICALLY CHECKED IN THE FIELD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.