# SDR DJFA20130703001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2013
- Submitted: August 8, 2013
- Operation: Air carrier
- Aircraft: [N733FL](https://openairdocs.org/aircraft/N733FL), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500027
- Aircraft time: 7,250 hours, 4,536 cycles
- Engine: Rroyce AE3007C1
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Unknown
- Condition: Faulted
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: G, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DJFA20130703001

## Discrepancy

CREW REPORTED AT FL450,  LOST GUIDANCE COMPUTERS A & B WHICH CAUSED LOSS OF NUMEROUS FLIGHT INSTRUMENTS.  DESCENDED TO FL300.   DECLARED AN EMERGENCY AND DIVERTED.  ACFT LANDED WITHOUT INCIDENT.  MX COULD NOT DUPLICATE THE DISCREPANCY.

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