# SDR QR9R2026061000001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2026
- Submitted: June 10, 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: 9719
- Aircraft time: 5,258 hours
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Audio Control
- Part number: ACU610025200
- Part serial: 12353
- Condition: Noisy
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2026061000001

## Discrepancy

AUDIO CONTROL UNIT WAS RECEIVED NEW FROM AIRBUS. AFTER INSTALLATION, TECHNICIANS DETECTED LOUD STATIC NOISE ON ICS.

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