What was found
ENGINE REMOVED DUE TO METAL IN OIL, NR 5 BRG EXHIBITED EXCESSIVE SPALLING ON BALLS AND OUTER RACE AND WORN AND CRACKED SEPARATOR. ORDERED REPLACEMENT BEARING.
- Difficulty date
- June 13, 2010
- Submitted
- June 18, 2010
- Operation
- Air carrier
- Aircraft
- N421PH
- Make and model
- Bell 407
- Aircraft serial
- 53749
- Aircraft time
- 9,454 hours
- Engine
- Allsn 250C47B
- Engine time
- 11,088 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Part serial
- MP086869
- Condition
- Spalled
- Location
- Turbine Wheel
- Part time
- 2,689 hours
- Component
- Turbine
- 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.