What was found
#2 OVERSPEED FAIL CAUTION REPEATEDLY APPEARED DURING HOVER AND AT FLIGHT. REMOVED AND REPLACED #2 ENG OVERSPEED SENSOR IAW MM 77-14-00-802-A01. T/F SUCCESSFULLY COMPLETED IAW AMM 05-60-00, 6-12.
- Difficulty date
- August 1, 2025
- Submitted
- August 1, 2025
- Operation
- General aviation
- Filed by
- QR9R369D
M1 Support Services - Make and model
- Bolkms BK117C2
- Aircraft serial
- 9807
- Aircraft time
- 3,710 hours
- System (JASC)
- 7714 · Engine RPM Indicating System
- Part
- Sensor
- Part number
- 9580111270
- Condition
- Failed
- Location
- Eng Overspeed
- Stage of operation
- HO
- How discovered
- O
- Nature of condition
- F
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.