What was found
ENGINE REMOVED 1-16-2016, DUE TO METAL ON UPPER AND LOWER CHIP PLUGS. REPLACED NR 5 BEARING DUE TO SPALLING ON OUTER RACE, BALLS AND DAMAGED SEPERATOR. REPLACED BEARING.
- Difficulty date
- January 29, 2016
- Submitted
- February 1, 2016
- Operation
- General aviation
- Aircraft
- N494PH
- Make and model
- Bell 407
- Aircraft serial
- 53396
- Aircraft time
- 15,839 hours
- Engine
- Allsn 250C47B
- Engine time
- 10,582 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWA140665
- Condition
- Spalled
- Location
- Nr 5
- Part time
- 1,512 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.