# SDR QR9R2026091000002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2026
- Submitted: September 10, 2026
- 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: 9743
- Aircraft time: 5,044 hours
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Air Data Module
- Part number: C17133AA01
- Part serial: 4017
- Condition: Out Of Tolerance
- Location: Zone 200
- Stage of operation: TO
- How discovered: V
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2026091000002

## Discrepancy

#2 ADC FAILURE INDICATION DURING TAKEOFF. TROUBLESHOOTING REVEALED #2 ADC TO BE OUT OF TOLERANCE. REMOVED AND REPLACED AIR DATA COMPUTER IAW AMM 34-11-00, 4-1. FUNCTIONAL TEST SUCCESSFULLY COMPLETED.

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