# SDR QR9R2026061100002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2026
- Submitted: June 11, 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: 9704
- Aircraft time: 4,742 hours
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Ejector
- Part number: JBS8821
- Part serial: K50872
- Condition: Inoperative
- Location: Heater
- Stage of operation: TX
- How discovered: O
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2026061100002

## Discrepancy

HEATER NOT WORKING IN THE NORMAL OR EMERGENCY POSITIONS DURING START RUNUP. HEATER MIXER/SHUTOFF UNIT FAILED USING THE LUH-72 HEATER EJECTOR TEST SET AND TROUBLESHOOTING GUIDE IAW AMM 21-41-00, 1-1. REMOVED AND REPLACED HEATER EJECTOR ASSY.

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