What was found
UPON DISASSEMBLY OF THE ENGINE TO REPAIR FOR REPORTED METAL IN OIL FOUND A CRACK IN THE PT OUTER SHAFT ORIGINATING AT THE CURVIC COUPLING END OF THE SHAFT. THE CRACK EXTENDED APPROXIMATELY 270 DEGREES AROUND THE SHAFT.
- Difficulty date
- December 14, 2016
- Submitted
- December 14, 2016
- Operation
- General aviation
- Filed by
- 8MHR895B
Keystone Turbine Services, LLC - Make and model
- Bell
- Engine
- Rroyce
- System (JASC)
- 7250 · Turbine Section
- Part
- Shaft
- Part number
- 23038136
- Part serial
- WN53592
- Condition
- Cracked
- Location
- Engine Turbine
- Part time
- 730 hours, 1,425 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.