# SDR QR9R2024091300003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2024
- Submitted: September 13, 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: 14723249695
- Aircraft time: 4,348 hours
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Sensor
- Part number: 9580111270
- Part serial: 16028
- Condition: Failed
- Location: Engine Ovr Speed
- Stage of operation: HO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2024091300003

## Discrepancy

#1 ENG OVERSPEED FAIL CAME ON DURING HOVER TAXI. A TEST FLIGHT EVAL FOUND THAT AFTER 5 ATTEMPTS ON RESETTING #1 ENGINE OVERSPEED LIGHT CB, LIGHT WOULD NOT EXTINGUISH. REMOVED AND REPLACED OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01. MOC COMPLETED OK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.