- Difficulty date
- November 17, 2016
- Submitted
- November 17, 2016
- Operation
- Air carrier
- Aircraft
- N742PH
- Make and model
- Bell 407
- Aircraft serial
- 53461
- Aircraft time
- 16,247 hours
- Engine
- Allsn 250C47B
- Engine time
- 8,489 hours
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWC150509
- Condition
- Spalled
- Location
- Turbine
- Part time
- 1,027 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.
What was found
NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.
More about the Bell 407