# SDR QR9R2026091600002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2026
- Submitted: September 16, 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: 9807
- Aircraft time: 4,295 hours
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Air Data Module
- Part number: C17027DA01
- Part serial: 2162
- Condition: Inaccurate
- Location: Nav System
- Stage of operation: TX
- 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/QR9R2026091600002

## Discrepancy

RIGHT AIRSPEED INDICATOR INDICATED 30+ KNOTS CONSISTENTLY, ALL OTHER AIRSPEED INDICATORS INDICATED 0. MAINTENANCE ATTEMPTED TO CIRCULATE AIR THROUGH RIGHT PITOT TUBE WITH NO EFFECT. REMOVED AND REPLACED #2 ADU; OPERATIONAL CHECK SUCCESSFULLY COMPLETED.

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