What was found
ENGINE REMOVED 10-9-16 FOR NR 5 BEARING REPLACEMENT. NR 5 BEARING EXHIBITED SPALLED OUTER RACE AT SPLIT. INSTALLED UPGRADED NR 5 BEARING.
- Difficulty date
- October 27, 2016
- Submitted
- October 27, 2016
- Operation
- Air carrier
- Aircraft
- N440PH
- Make and model
- Bell 407
- Aircraft serial
- 53327
- Aircraft time
- 18,960 hours
- Engine
- Allsn 250C47B
- Engine time
- 15,160 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWE141168
- Condition
- Spalled
- Location
- Turbine
- Part time
- 1,016 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.