What was found
ENGINE REMOVED ON 10-13-14 FOR TURBINE OVERHAUL. NR 5 BEARING EXHIBITS A SPALLING BALL. REPLACED BEARING. PART WILL BE RETURNED TO MFG FOR EVALUATION.
- Difficulty date
- October 20, 2014
- Submitted
- October 20, 2014
- Operation
- General aviation
- Filed by
- HEER617E
PHI Aviation, LLC - Aircraft
- N491PH
- Make and model
- Bell 407
- Aircraft serial
- 53386
- Aircraft time
- 11,986 hours
- Engine
- Allsn 250C47B
- Engine time
- 1,981 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWB120910
- Condition
- Spalled
- Location
- Engine
- Part time
- 1,314 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.