# SDR QR9R20220930001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2022
- Submitted: September 30, 2022
- 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: 08720759252
- Aircraft time: 3,156 hours
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: C17133AA01
- Part serial: 3450
- Condition: Faulted
- Location: Nr 2
- Stage of operation: TX
- How discovered: O
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R20220930001

## Discrepancy

PILOT/RIGHT SIDE AIRSPEED INDICATOR READING 20 KNOTS ON GROUND. ISOLATED TO THE #2 ADU BY AVIONICS. REMOVED AND REPLACED #2 ADU IAW AMM 34-11-00, 4-1 AND 34-10-00, 5-1. MOC SUCCESSFULLY COMPLETED.

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