# SDR QR9R2026020900001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2026
- Submitted: February 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: 9759
- Aircraft time: 4,400 hours
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Ejector
- Part number: JBS8821
- Part serial: K53938
- Condition: Failed
- Location: Heater
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2026020900001

## Discrepancy

AFTER RECEIPT OF PART FROM SUPPLY, AVIONICS PERSONEL FOUND THE HEATER EJECTOR ASSY FAILED TESTING (PRIMARY VALVE STUCK OPEN).

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