# SDR HNAA2016102400330

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 24, 2016
- Submitted: October 24, 2016
- Operation: Air carrier
- Aircraft: N816EX
- Make and model: Dhav DHC8102
- Aircraft serial: 329
- Aircraft time: 58,006 hours, 64,646 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Ahrs
- Part number: HG2011AC03
- Condition: Inaccurate
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2016102400330

## Discrepancy

DURING TAXI, AFTER PUSH BACK, ADI MISMATCH APPEARED ON BOTH 802 PANELS. F/O ADI ROLLS TO THE RIGHT. CORRECTED WITH SAHS.  REMOVED AND REPLACED THE AHRS IAW MM 34-20-06. OPS CHECKED GOOD. OK FOR SERVICE.

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