What was found
ENGINE REMOVED 6-17-16 DUE TURBINE OVERHAUL. NR 5 BEARING REMOVED DUE TO SPALLING ON OUTER RACE AT SPLIT. REPLACED NR 5 BEARING.
- Difficulty date
- July 7, 2016
- Submitted
- July 7, 2016
- Operation
- Air carrier
- Aircraft
- N412P
- Make and model
- Bell 407
- Aircraft serial
- 54135
- Aircraft time
- 1,738 hours
- Engine
- Allsn 250C47B
- Engine time
- 8,339 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWH141030
- Condition
- Spalled
- Location
- Eng Turbine
- Part time
- 860 hours
- Component
- Turbine
- Component part number
- M25010557
- 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.