# SDR QR9R2026062600001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2026
- Submitted: June 26, 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: 9247
- Aircraft time: 4,745 hours
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Controller
- Part number: 3130012021200
- Part serial: 107293
- Condition: Failed
- Location: Nr 4
- Stage of operation: TO
- 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/QR9R2026062600001

## Discrepancy

DURING RUN-UPS RADIO WOULD NOT POWER UP. WOLFSBURG THEN STARTED TO HEAT UP. REMOVED AND REPLACED C-5000 CONTROLLER IAW CMM 145MMS-015; MOC OKAY.

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