# SDR QR9R2025031100002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2025
- Submitted: March 11, 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: 9249
- Aircraft time: 4,254 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: TX
- How discovered: V
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025031100002

## Discrepancy

AT IIDLE (70% N1 + - 2) #2 TRANSMISSION OIL PSI WAS LESS THAN 1.0 BAR. TROUBLESHOOTING REVEALED #2 TRANSMISSION OIL PRESSURE TRANSDUCER BAD. REMOVED AND REPLACED TRANSDUCER IAW AMM 63-41-00, 4-4.

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