# SDR ERAA201410020064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2014
- Submitted: October 2, 2014
- Operation: Air carrier
- Aircraft: N887EA
- Make and model: Dhav DHC8106
- Aircraft serial: 351
- Aircraft time: 32,913 hours, 35,333 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Computer
- Part number: 7003360941
- Part serial: 90061662
- Condition: Defective
- Location: Ahru
- Part time: 6,653 hours, 7,081 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/ERAA201410020064

## Discrepancy

INTERMITTENT HDG FLAG ON NR 1 HSI AND AHRS HDG DATA INVALID.  REPLACED NR 1 CAPTAIN`S STRAP DOWN AHRU AND GROUND TEST GOOD IAW MM 34-20-00.

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