# SDR CA190712001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 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: 909 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: O
- Nature of condition: H
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA190712001

## Discrepancy

(CAN) WHILE CONDUCTING A SHORT ICE RECONNAISSANCE FLIGHT THAT INVOLVED A NUMBER OF HEADING CHANGES, THE AP DEGRADE AND LFD CAS MESSAGE ILLUMINATED. THIS OCCURRED APPROX. 4 MINS INTO THE HEADING PRESET MODE. HEADING PRESET MODE WAS RESET AND THIS OCCURRENCE THEN HAPPENED AGAIN AFTER 3 (TC# 20190712001)

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