What was found
ENGINE REMOVED 10-20-15, DUE TO METAL IN OIL. NR 5 BEARING EXHIBITED SPALLING OF OUTER RACE, BALLS AND DAMAGED SEPARATOR. PART SCRAPPED.
- Difficulty date
- November 23, 2015
- Submitted
- November 23, 2015
- Operation
- General aviation
- Aircraft
- N431P
- Make and model
- Bell 407
- Aircraft serial
- 53857
- Aircraft time
- 2,683 hours
- Engine
- Allsn 250C47B
- Engine time
- 1,351 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWL120012
- Condition
- Spalled
- Location
- Turbine
- Part time
- 1,023 hours
- Component
- Turbine
- Component part number
- M25010557
- 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.