What was found
DURING TROUBLESHOOTING OF NR 2 ENGINE OVERSPEED, FOUND ENGINE POWER TURBINE GOVERNOR FAILED DUE TO SHAFT BEARING WORN COMPLETELY OUT.
- Difficulty date
- January 10, 2012
- Submitted
- January 19, 2012
- Operation
- Air carrier
- Aircraft
- N217LN
- Make and model
- Bolkms BK117B2
- Aircraft serial
- 7042
- Aircraft time
- 10,159 hours, 35,703 cycles
- Engine
- Lyc LTS101*
- Engine time
- 8,833 hours, 22,470 cycles
- System (JASC)
- 7323 · Turbine Governor
- Part
- Bearing
- Condition
- Worn
- Location
- Governor
- Component
- Governor
- Component part number
- 430121204
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- B
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.