What was found
ENGINE REMOVED 8-9-15 DUE TO TURBINE OVERHAUL. NR 5 BEARING EXHIBITS PROBABLE SPALLING AT OUTER RACE SPLIT. REPLACED WITH SERVICEABLE BEARING.
- Difficulty date
- August 27, 2015
- Submitted
- August 27, 2015
- Operation
- General aviation
- Aircraft
- N496PH
- Make and model
- Bell 407
- Aircraft serial
- 53398
- Aircraft time
- 15,985 hours
- Engine
- Allsn 250C47B
- Engine time
- 5,270 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWA140733
- Condition
- Spalled
- Location
- Turbine Section
- Part time
- 1,494 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.