# SDR BSYA2011004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2011
- Submitted: February 2, 2011
- Operation: Air carrier
- Aircraft: [N42HD](https://openairdocs.org/aircraft/N42HD), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 8152031
- Aircraft time: 13,689 hours
- Engine: Lyc TIO540*
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Buss
- Condition: Inoperative
- Location: Electrical
- Stage of operation: AP
- How discovered: O
- Nature of condition: H
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BSYA2011004

## Discrepancy

GOING INTO AIRPORT, ACFT HAD A TOTAL AVIONICS FAILURE.  MX FOUND BOTTOM CIRCUIT BREAKER BUSS INOP.  FOUND LOOSE SCREW FEEDING BUSS, TIGHTENED SCREW, OPS CHECKS GOOD.

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