# SDR QR9R2026110900001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2026
- Submitted: November 9, 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: 9116
- Aircraft time: 6,002 hours
- System (JASC): [2430 · DC Generating System](https://openairdocs.org/jasc/2430)
- Part: Sensor
- Part number: FSC211
- Part serial: 3052
- Condition: Out Of Limits
- Location: Generator
- 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/QR9R2026110900001

## Discrepancy

GENERATOR SPLIT PRIOR TO TAKEOFF. GEN1 READ 40, GEN 2 READ 125. A TEST FLIGHT EVAL FOUND #2 AMP JUMPED UP FROM 40 AMP TO 175 AMP RIGHT AFTER PICKING A/C UP INTO A HOVER. #2 AMP ERRACTICALLY INDICATED EVERYTHING BETWEEN 40 AND 180 AMPS DURING HOVER. DURING FLIGHT, #2 AMP INDICATED 115 AMPS. NO GEN DISC CAUTION LIGHT. VOLTAGES ON #1 28.6 AND #2 28.8 STEADY. THIS WAS SECOND OCCURANCE WITHIN 5 DAYS OF THE SAME FAULT. REMOVED AND REPLACED HALL SENSOR IAW AMM 24-30-00, 4-6.

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