# SDR S2YA04016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2004
- Submitted: February 2, 2005
- Operation: Air carrier
- Aircraft: [N801SK](https://openairdocs.org/aircraft/N801SK), registered now
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE80
- Engine: Pwa PT6A67D
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Computer
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/S2YA04016

## Discrepancy

DURING FLIGHT, THE CREW NOTED SEVERAL ELECTRICALLY RELATED ANNUNCIATORS ILLUMINATED INCLUDING THE FLIGHT DIRECTOR AND YAW DAMP.  THE CREW MADE A PRECAUTIONARY AIR-TURN-BACK.  MX INSPECTED THE SYSTEM INCLUDING REMOVAL, INSPECTION AND REINSTALL OF BOTH FYD-65 YAW DAMP COMPUTERS.  MX WAS NOT ABLE TO DUPLICATE THE PROBLEM OR FIND ANY DISCREPANCIES.  AFTER A DELAY THE AC CONTINUED ON FLIGHT, WITH NO FURTHER DEFECTS. (K)

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