What was found
TURBINE REMOVED FOR OVERHAUL 11-28-14 AND GEARBOX DISASSEMBLED DUE TO METAL ON CHIP PLUGS. PTO BALL BEARING EXHIBITS SEVERELY SPALLING BALLS. SCRAPPED PART AND REPLACED WITH NEW.
- Difficulty date
- February 11, 2015
- Submitted
- February 12, 2015
- Operation
- General aviation
- Filed by
- HEER617E
PHI Aviation, LLC - Aircraft
- N490PH
- Make and model
- Bell 407
- Aircraft serial
- 53378
- Aircraft time
- 10,665 hours
- Engine
- Allsn 250C47B
- Engine time
- 11,002 hours
- System (JASC)
- 7260 · Turbine Engine Accessory Drive
- Part
- Bearing
- Part number
- 6889326
- Part serial
- MP007990
- Condition
- Spalled
- Location
- Gearbox
- Part time
- 2,497 hours
- Component
- Gearbox
- Component part number
- 23063393
- 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.