What was found
ENGINE REMOVED ON 10-9-14 DUE TO METAL IN OIL. NR 5 BEARING EXHIBITS HEAVY SPALLING ON NR 5 BEARING BALLS. PART RETURNED TO MFG FOR FURTHER EVALUATION.
- Difficulty date
- October 20, 2014
- Submitted
- October 20, 2014
- Operation
- General aviation
- Aircraft
- N496PH
- Make and model
- Bell 407
- Aircraft serial
- 53398
- Aircraft time
- 14,487 hours
- Engine
- Allsn 250C47B
- Engine time
- 9,816 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWL120841
- Condition
- Spalled
- Location
- Engine
- Part time
- 1,746 hours
- Component
- Turbine
- Component part number
- M25010557
- 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.