# SDR QR9R2024010800001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 2024
- Submitted: January 8, 2024
- 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: 10721739424
- Aircraft time: 3,621 hours
- System (JASC): [2460 · DC Power Distribution System](https://openairdocs.org/jasc/2460)
- Part: Transformer
- Part number: FSC211
- Part serial: 1407
- Condition: Failed
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2024010800001

## Discrepancy

DURING FLIGHT, APMS SPLIT BETWEEN 10 AND 35 AMPS WITH #2 ALWAYS GOING LOW. DURING THE SPLIT #1 NEVER INDICATED AN INCREASE TO COMPENSATE. TEST FLIGHT EVAL REVEALED GENERATOR AMP SPLIT EXCEEDED 10 AMPS WITH #1 @ 50 AND #2 @ 35. REMOVED AND REPLACED #2 TRANSFORMATOR IAW 24-30-00-4; MOC SUCCESSFULLY COMPLETED.

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