# SDR QR9R2026110500004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2026
- Submitted: November 5, 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: 9808
- Aircraft time: 4,116 hours
- System (JASC): [6340 · Rotor Drive Indicating System](https://openairdocs.org/jasc/6340)
- Part: Transducer
- Part number: ZRB26300
- Condition: Faulty
- Location: Oil Pressure
- 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/QR9R2026110500004

## Discrepancy

XMSN PSI ON #2 SIDE WAS IN THE CAUTION RANGE AT 1.3 PSI. IT OCCURED AT 2500 FT APPROXIMATELY .7 INTO FLIGHT. TROUBLESHOOTING FOUND WHEN TURNING A/C BATTERY ON THE #2 XMSN OIL PRESSURE WAS READING 1.4 BAR ON THE VEMD. AFTER DISCONNECTING AND RECONNECTING THE #2 XMSN OIL PRESSURE TRANSDUCER, THE #2 XMSN BAR READ 0.0. REMOVED AND REPLACED OIL PRESSURE TRANSDUCER IAW AMM 63-41-00, 4-4. MOC SUCCESSFULLY COMPLETED.

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