# SDR QR9R2025072800001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2025
- Submitted: July 28, 2025
- 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: 9126
- Aircraft time: 4,463 hours
- System (JASC): [3130 · Data Recorders (Flight/Maintenance)](https://openairdocs.org/jasc/3130)
- Part: Recorder
- Part number: 5001610311
- Part serial: 001188492
- Condition: Over Voltage
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: H
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025072800001

## Discrepancy

OVERNIGHT BATTERY VOLTAGE DRAINED DOWN TO 22 VOLTS (BATTERY RECENTLY REPLACED). THE FA5001 CVFDR WAS FOUND TO HAVE CONSTANT DRAIN ON BATTERY. REMOVED AND REPLACED CVFDR IAW AMM 31-32-10, 4-1.

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