What was found
NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. REPLACED WITH A NEW NR 5 BEARING.
- Difficulty date
- September 22, 2017
- Submitted
- September 25, 2017
- Operation
- Air carrier
- Aircraft
- N449PH
- Make and model
- Bell 407
- Aircraft serial
- 54117
- Aircraft time
- 9,316 hours
- Engine
- Allsn 250C47B
- Engine time
- 12,072 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWB131552
- Condition
- Spalled
- Location
- Turbine
- Part time
- 532 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.