What was found
ENGINE REMOVED 6-30-15 DUE TO METAL IN OIL. FOUND SPALLING AT OUTER RACE SPLIT & WORN POCKET AT SEPARATOR ON NR 5 BEARING. INSTALLED NEW NR 5 BEARING. PART WILL BE RETURNED FOR FURTHER EVALUATION.
- Difficulty date
- July 14, 2015
- Submitted
- July 15, 2015
- Operation
- Air carrier
- Aircraft
- N404PH
- Make and model
- Bell 407
- Aircraft serial
- 53188
- Aircraft time
- 17,619 hours
- Engine
- Allsn 250C47B
- Engine time
- 12,830 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWC140166
- Condition
- Spalled
- Location
- Engine
- Part time
- 800 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.