What was found
ENGINE REMOVED 7-2-16 FOR TURBINE O/H AND 2000 HR INSPECTION. NR 5 BEARING EXHIBITS SPALLING AT OUTER RACE SPLIT. REPLACED NR 5 BEARING.
- Difficulty date
- July 13, 2016
- Submitted
- July 13, 2016
- Operation
- General aviation
- Aircraft
- N496PH
- Make and model
- Bell 407
- Aircraft serial
- 53398
- Aircraft time
- 17,359 hours
- Engine
- Allsn 250C47B
- Engine time
- 11,019 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWK150060
- Condition
- Spalled
- Location
- Engine
- Part time
- 437 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.