What was found
ENGINE REMOVED DUE TO METAL IN OIL. REMOVED TURBINE NR 5 BEARING DUE TO SPALLING AT OUTER RACE SPLIT AND BEARING BALLS, CAUSE OF METAL IN OIL. REPLACED NR 5 BEARING WITH NEW BEARING. WILL RETURN PART TO MFG FOR FURTHER EVALUATION.
- Difficulty date
- November 5, 2014
- Submitted
- November 5, 2014
- Operation
- General aviation
- Aircraft
- N417PH
- Make and model
- Bell 407
- Aircraft serial
- 53038
- Aircraft time
- 12,366 hours
- Engine
- Allsn 250C47B
- Engine time
- 5,935 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWE131497
- Condition
- Spalled
- Location
- Engine
- Part time
- 1,028 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.