# SDR P5CA9600154

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N859FT](https://openairdocs.org/aircraft/N859FT), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20326
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Circuit Breaker
- Part number: 10608061025
- Condition: Failed
- Location: Cockpit
- Stage of operation: TX
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA9600154

## Discrepancy

AIRCRAFT RETURNED TO BLOCKS DUE TO FAILURE OF ALL RADIO/AIR DATA INSTRUMENTS ON CAPTAIN'S SIDE.  FOUND ESSENTIAL RADIO BUS C/B OPEN, DUE TO HISTORY OF C/B OPENING REPLACED C/B.  CHECKED SYSTEM PER MM 34-13-00 AND 24-50-02.

---
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.