# SDR SWIA200412839

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2004
- Submitted: February 6, 2004
- Operation: Air carrier
- Aircraft: [N582SW](https://openairdocs.org/aircraft/N582SW), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120350
- Aircraft time: 10,373 hours, 14,038 cycles
- Engine: Pwa PW118A
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Computer
- Part number: 6226190204
- Part serial: 1908
- Condition: Malfunctioned
- Location: Attitude
- Part time: 1 hours, 1 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J, F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA200412839

## Discrepancy

IN FLIGHT, AUTOPILOT FAILED ON CAPTAIN'S SIDE.  AHRS FLAGS ATT, HDG, AND FD.  CYCLED ON AND OFF.  F/O'S AUTOPILOT OPERATES NORMAL.  INSTALLED NEW SERVICEABLE AHRS COMPUTER ON CAPTAIN'S SIDE.  SYSTEM OPS CHECKS GOOD AND AUTOPILOT OPS CHECKS GOOD IAW MM 34-21-00.

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