What was found
ENGINE REMOVED 8-20-16 FOR NR 5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING OUTER RACE AT SPLIT. REPLACED BEARING.
- Difficulty date
- September 12, 2016
- Submitted
- September 12, 2016
- Operation
- General aviation
- Aircraft
- N422PH
- Make and model
- Bell 407
- Aircraft serial
- 53675
- Aircraft time
- 10,889 hours
- Engine
- Allsn 250C47B
- Engine time
- 12,252 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWC140058
- Condition
- Spalled
- Location
- Engine
- Part time
- 1,244 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.