# SDR KCQA2014F00139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2014
- Submitted: August 5, 2014
- Operation: Air carrier
- Aircraft: [N899CZ](https://openairdocs.org/aircraft/N899CZ), registered now
- Make and model: Beech 99A
- Registry model: [Beech 99A](https://openairdocs.org/model/beech-99a) (OpenAirDocs)
- Aircraft serial: U96
- Aircraft time: 29,810 hours, 40,997 cycles
- Engine: Pwa PT6A28
- Propeller: Hartzl HCB3TN3
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Module
- Part number: A0511100
- Part serial: 3303
- Condition: Defective
- Location: Zone 200
- Part time: 868 hours, 1,488 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCQA2014F00139

## Discrepancy

PILOT PRIMARY FLIGHT DISPLAY (PFD), AVIONICS EFD1000C3 LOST ALL ATTITUDE AND DIRECTION DATA IN FLIGHT. AFTER LANDING ON SUBSEQUENT POWER ON CYCLES THE PFD POWER ON SELF TEST/INITIALIZATION PAGE DISPLAYED "RSM FAIL 4 CHECK LINK".

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