# SDR AU991075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Amtr LANCAIRIV
- Engine: Cont TSIO550E
- System (JASC): [2460 · DC Power Distribution System](https://openairdocs.org/jasc/2460)
- Part: Circuit Breaker
- Part number: W23X1AG50
- Condition: Failed
- Location: Dc Power Sys
- Stage of operation: CR
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU991075

## Discrepancy

(AUS) INCORRECT RATED CIRCUIT BREAKER INSTALLED.  CIRCUIT BREAKER RATED AT 50 AMPS CONNECTED TO A 70 AMP ALTERNATOR.  CIRCUIT BREAKER FAILED DURING FLIGHT.   UNAPPROVED PART.

---
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.