What was found
REMOVED 1-22-16 DUE TO TURBINE CRACKED EXHAUST COLLECTOR. NR 5 BEARING SPALLING AT OUTER RACE SPLIT. INSTALLED NEW NR 5 BEARING.
- Difficulty date
- February 24, 2016
- Submitted
- February 25, 2016
- Operation
- General aviation
- Aircraft
- N428PH
- Make and model
- Bell 407
- Aircraft serial
- 53754
- Aircraft time
- 3,408 hours
- Engine
- Allsn 250C47B
- Engine time
- 7,885 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWD103393
- Condition
- Spalled
- Location
- Turbine
- Part time
- 1,447 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.