What was found
ENGINE REMOVED 11-25-14 DUE TO TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING BALLS. PART RETURNED TO ROLLS ROYCE FOR FURTHER EVALUATION.
- Difficulty date
- December 11, 2014
- Submitted
- December 11, 2014
- Operation
- General aviation
- Aircraft
- N433PH
- Make and model
- Bell 407
- Aircraft serial
- 53421
- Aircraft time
- 4,150 hours
- Engine
- Allsn 250C47B
- Engine time
- 3,972 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWJ132920
- Condition
- Spalled
- Location
- Turbine
- Part time
- 751 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.