What was found
ENGINE WAS REMOVED DUE TO CYCLED WHEELS. NR 5 BEARING EXHIBITED SPALLING OF OUTER RACE AT SPLIT. REPLACED NR5 BEARING.
- Difficulty date
- April 1, 2011
- Submitted
- April 22, 2011
- Operation
- Air carrier
- Aircraft
- N426PH
- Make and model
- Bell 407
- Aircraft serial
- 53751
- Aircraft time
- 1,758 hours
- Engine
- Allsn 250C47B
- Engine time
- 6,485 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Part serial
- MP088839
- Condition
- Spalled
- Location
- Nr 5
- Part time
- 877 hours
- Component
- Turbine Assy
- 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.