What was found
ENGINE REMOVED FOR NR 5 BEARING UPGRADE. FOUND SPALLING ON THE BEARING OUTER RACE AT SPLIT.
- Difficulty date
- August 28, 2017
- Submitted
- August 30, 2017
- Operation
- Air carrier
- Aircraft
- N450PH
- Make and model
- Bell 407
- Aircraft serial
- 54125
- Aircraft time
- 1,127 hours
- Engine
- Allsn 250C47B
- Engine time
- 10,199 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing Race
- Part number
- M25010106
- Part serial
- MWC150549
- Condition
- Spalled
- Location
- Engine
- Part time
- 426 hours
- Component
- Turbine
- 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.