# SDR COEA2015032601821

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2015
- Submitted: March 27, 2015
- Operation: Air carrier
- Aircraft: [N821FX](https://openairdocs.org/aircraft/N821FX), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 253
- Aircraft time: 33,659 hours, 32,316 cycles
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Ahrs
- Part number: 7003360947
- Part serial: 87110856
- Condition: Failed
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COEA2015032601821

## Discrepancy

AIR TURN BACK, DISCREPANCY.  DURING CLIMB OUT, THE AHRU FAILED.  THE CREW ELECTED TO RETURN, NO EMER DECLARED & ACFT LANDED SAFELY.  REPLACED THE CAPTAIN'S AHRU.  ACFT RETURNED TO SERVICE.

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