What was found
DUE TO METAL GENERATION AND ABNORMAL SOUND ON SHUTDOWN. A CRACK WAS FOUND ON PT OUTER SHAFT.
- Difficulty date
- January 31, 2014
- Submitted
- February 6, 2014
- Operation
- General aviation
- Make and model
- Bell 407
- Aircraft serial
- 53212
- Engine
- Allsn 250C47B
- Engine time
- 7,284 hours, 7,919 cycles
- System (JASC)
- 7250 · Turbine Section
- Part
- Shaft
- Part number
- 23038136
- Part serial
- WN51157
- Condition
- Cracked
- Location
- Turbine Assembly
- Part time
- 1,208 hours, 1,181 cycles
- Component
- Turbine · Rroyce · M250C47B
- Component part number
- 23063354
- 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.