# SDR C2XA1`0IA283

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2010
- Submitted: November 9, 2010
- Operation: Air carrier
- Aircraft: [N29917](https://openairdocs.org/aircraft/N29917), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145414
- Aircraft time: 23,110 hours, 17,511 cycles
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Ahrs
- Part number: HG2010AC02
- Part serial: 01052068
- Condition: Inoperative
- Location: Nr 1
- Part time: 17,916 hours, 16,514 cycles
- Stage of operation: CL
- 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/C2XA1%600IA283

## Discrepancy

IAH - FLIGHT 2945, THE CREW REPORTED A AHRS NR 1 FAIL MESSAGE IN FLIGHT.  THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT.  MAINTENANCE REMOVED AND REPLACED THE NR 1 AHRS UNIT, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.

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