# SDR QR9R2026072400001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2026
- Submitted: July 24, 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: 9816
- Aircraft time: 4,444 hours
- System (JASC): [2311 · UHF Communications System](https://openairdocs.org/jasc/2311)
- Part: Antenna
- Part number: 12104013002
- Part serial: 50639
- Condition: Faulty
- Location: Comm Sys
- 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/QR9R2026072400001

## Discrepancy

RT 5000 TRANSMISSIONS UNREADABLE WHEN TWIST GRIPS WERE IN FLT. AT IDLE, RADIO WAS BARELY READABLE WITH GROUND AND TWR. REMOVED AND REPLACED UHF ANTENNA IAW CMM 145MMS-015 REV B; MOC OKAY.

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