# SDR HNAA0500021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2005
- Submitted: March 11, 2005
- Operation: Air carrier
- Aircraft: N826EX
- Make and model: Dhav DHC8102
- Aircraft serial: 389
- Aircraft time: 26,273 hours, 28,713 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Ahrs
- Part number: 7003360941
- Part serial: 014192
- Condition: Failed
- Location: Nr 1
- Part time: 26,181 hours, 28,617 cycles
- Stage of operation: CL
- 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/HNAA0500021

## Discrepancy

NR 1 AHRS FAILED ON CLIMBOUT.  HSI/HDG MESSAGE AND ADI PITCH MISMATCH ON 800 PANEL.  AFTER MAINTENANCE REMOVED AND REPLACED NR 1 AHRS F/O NOTICED HDG MISMATCH ON F/O SIDE.  MAINT WAITING FOR PUSH BACK TO TAXI AIRCRAFT FOR HDG MISMATCH.  MAINT TAXIED AIRCRAFT, OPS NORMAL.

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