# SDR GLBA201204211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2012
- Submitted: April 23, 2012
- Operation: Air carrier
- Aircraft: N297UX
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120297
- Aircraft time: 30,372 hours, 31,378 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: CL
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GLBA201204211

## Discrepancy

MULTIPLE SMOKE ANNUNCIATIONS, FOLLOWED BY HAZE IN THE COCKPIT, HDG FLAG DURING EVENT. POSSIBLE AHRS FAILURE.  MX OPERATED ACFT AND AVIONICS, NO SMOKE OR HAZE NOTED, COULD NOT DUPLICATE ISSUE.

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