# SDR QR9R2026101900001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2026
- Submitted: October 19, 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: 9823
- Aircraft time: 3,763 hours
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Transceiver
- Part number: 4000155255111
- Part serial: 52850
- Condition: Inoperative
- Location: Comm Sys
- Stage of operation: TX
- How discovered: C
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2026101900001

## Discrepancy

RADIO NR 4 INOPERATIVE, DURING START RUN-UP.  REMOVED AND REPLACED TRANSCEIVER RT5000/P25; MOC SUCCESSFULLY COMPLETED.

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