# SDR CA190708005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2018
- Submitted: August 17, 2020
- Operation: General aviation
- Make and model: Bell 429
- Registry model: [Bell 429](https://openairdocs.org/model/bell-helicopter-textron-canada-429) (OpenAirDocs)
- Aircraft time: 1,160 hours
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adiru
- Part number: 429075123105
- Condition: Unreliable
- Stage of operation: NR
- How discovered: 9
- Nature of condition: H
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA190708005

## Discrepancy

(CAN) WHILE CONDUCTING A GLACIER SURVEY (6000FT), FD DECOUPLED COMPLETELY WITH BOTH AP DEGRADED AND FD CAS MESSAGES. THIS OCCURRED FOLLOWING A HEADING RESET IN HEADING PRESET MODE (FMS-45). (TC# 20190708005)

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