# SDR QR9R2025051200001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2025
- Submitted: May 12, 2025
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Make and model: Bolkms BK117C2
- Aircraft serial: 9346
- Aircraft time: 4,618 hours
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Air Data Module
- Part number: C17027DA01
- Part serial: 3380
- Condition: Failed
- Location: Nav System
- Stage of operation: CR
- How discovered: V
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025051200001

## Discrepancy

DURING FLIGHT, LIMIT ILLUMINATED ALONG WITH VNE AMD THE WARNING GONG. ISOLATED THE ADU TO #1 AND THE CAUTION/WARNINGS/ADVISORIES WENT OUT. REMOVED AND REPLACED #2 ADU IAW AMM 34-11-00, 4-1. TEST FLIGHT COMPLETED, NO FAULTS NOTED.

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