# SDR RAIA00401056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2004
- Submitted: March 1, 2004
- Operation: Air carrier
- Aircraft: N804HK
- Make and model: Emb EMB-145
- Registry model: [EMB EMB-145](https://openairdocs.org/model/embraer-emb-145) (OpenAirDocs)
- Aircraft serial: 145082
- Aircraft time: 11,368 hours, 10,765 cycles
- System (JASC): [2213 · Flight Controller](https://openairdocs.org/jasc/2213)
- Part: Control Unit
- Part number: 7021170951
- Part serial: 99090527
- Condition: Malfunctioned
- Location: Autopilot Sys
- Part time: 2,724 hours, 2,974 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RAIA00401056

## Discrepancy

STL - YAW DAMPER INOP INDICATION.  MAINTENANCE DEFERRED PER MEL.  SUBSEQUENTLY CLEARING DMI BY REMOVING AND REPLACING FLIGHT GUIDANCE CONTROL UNIT.

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