What was found
TURBINE REMOVED 6-21-15 FOR OVERHAUL DUE TO METAL IN OIL. REMOVED NR 5 BEARING DUE TO SPALLING. FOUND SPALLING ON OUTER RACE AT SPLIT. SCRAP PART AND REPLACED WITH NEW BEARING.
- Difficulty date
- July 7, 2016
- Submitted
- July 7, 2016
- Operation
- Air carrier
- Aircraft
- N412PH
- Make and model
- Bell 407
- Aircraft serial
- 43862
- Aircraft time
- 8,428 hours
- Engine
- Allsn 250C47B
- Engine time
- 14,837 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWB131557
- Condition
- Spalled
- Location
- Nr 5
- Part time
- 1,650 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.