What was found
NR 5 BEARING EXHIBITS SPALLING ON OUTER RACE IN TURBINE. INSTALLED NEW NR 5 BEARING.
- Difficulty date
- May 1, 2012
- Submitted
- May 23, 2012
- Operation
- Air carrier
- Aircraft
- N439PH
- Make and model
- Bell 407
- Aircraft serial
- 53999
- Aircraft time
- 1,904 hours
- Engine
- Allsn 250C47B
- Engine time
- 1,992 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWF109359
- Condition
- Spalled
- Location
- Nr 5
- Part time
- 915 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.