What was found
ENGINE REMOVED 10-14-14 DUE TO METAL IN OIL. NR 5 BEARING REMOVED DUE TO POSSIBLE SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW PART AND RETURNED TO MFG FOR FURTHER EVALUATION.
- Difficulty date
- October 20, 2014
- Submitted
- October 20, 2014
- Operation
- General aviation
- Aircraft
- N501PH
- Make and model
- Bell 407
- Aircraft serial
- 53401
- Aircraft time
- 16,472 hours
- Engine
- Allsn 250C47B
- Engine time
- 1,706 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWK120824
- Condition
- Spalled
- Location
- Engine
- Part time
- 544 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.