What was found
SPALLING ON BALLS AND OUTER RACE.
- Difficulty date
- August 7, 2020
- Submitted
- September 25, 2020
- Operation
- Air carrier
- Aircraft
- N434PH
- Make and model
- Bell 407
- Aircraft serial
- 53773
- Aircraft time
- 4,130 hours
- Engine
- Allsn 250C47B
- Engine time
- 15,601 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010795
- Part serial
- NWF160935
- Condition
- Spalled
- Location
- Engine
- Part time
- 3,010 hours
- 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.