# SDR GLBA20090305B

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2009
- Submitted: March 6, 2009
- Operation: Air carrier
- Aircraft: [N293UX](https://openairdocs.org/aircraft/N293UX), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120293
- Aircraft time: 25,592 hours, 27,340 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Indicator
- Condition: Malfunctioned
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GLBA20090305B

## Discrepancy

YELLOW HDG FLAG ILLUMINATED DURING FLIGHT AND WOULD NOT RESET.  CA SIDE APPEARED TO BE PRECESSING.FO SIDE APPEARED MOST ACCURATE.  TRIED TO SLEW CA SIDE,  BUT WOULD PRECESS AGAIN.

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