# SDR QR9R2025100900004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2025
- Submitted: October 9, 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: 9712
- Aircraft time: 4,407 hours
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Sensor
- Part number: FSC211
- Part serial: 2539
- Condition: Out Of Limits
- Location: Generator
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025100900004

## Discrepancy

PREFLIGHT, GENERATOR SPLIT WAS GREATER THAN 10. NR 1 GENERATOR WAS PRODUCING 10-15 AMPS. NR 2 GENERATOR WAS PRODUCING 35-40 AMPS. REMOVED AND REPLACED CURRENT SENSOR IAW AMM 24-30-00, 4-6.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.