What was found
ENGINE REMOVED FOR TURBINE O/H. NR5 BRG EXHIBITED SPALLING ON OUTER RACE AND BALLS. REPLACED NR5 BRG.
- Difficulty date
- November 23, 2010
- Submitted
- December 8, 2010
- Operation
- Air carrier
- Aircraft
- N501PH
- Make and model
- Bell 407
- Aircraft serial
- 53401
- Aircraft time
- 12,125 hours
- Engine
- Allsn 250C47B
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Part serial
- MP087826
- Condition
- Spalled
- Location
- Turbine
- Part time
- 1,030 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.