# SDR QR9R20220818003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2022
- Submitted: August 18, 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: 08720839273
- Aircraft time: 3,264 hours
- System (JASC): [3415 · High Speed Warning](https://openairdocs.org/jasc/3415)
- Part: Air Data Module
- Part number: C17027DA01
- Part serial: 3234
- Condition: Failed
- Stage of operation: HO
- 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/QR9R20220818003

## Discrepancy

DURING START/RUN-UP, TRANSPONDER WOULD NOT DISPLAY OAT OR DA. REMOVED AND REPLACED #2 ADU IAW AMM 34-11-00, 4-1. MOC SUCCESSFULLY COMPLETED.

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