What was found
ENGINE DISASSEMBLED 6-21-16 DUE TO SQUEALING NOISE AND CHIP LIGHT ON SHUTDOWN. TURBINE DISASSEMBLED DUE TO NR 1 WHEEL BLADE FAILURE. NR 5 BEARING REMOVED DUE TO SPALLING ON OUTER RACE AT SPLIT. REPLACED NR 5 BEARING.
- Difficulty date
- July 11, 2016
- Submitted
- July 13, 2016
- Operation
- General aviation
- Filed by
- HEER617E
PHI Aviation, LLC - Aircraft
- N408PH
- Make and model
- Bell 407
- Aircraft serial
- 53228
- Aircraft time
- 16,381 hours
- Engine
- Allsn 250C47B
- Engine time
- 8,075 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWK150113
- Condition
- Spalled
- Location
- Engine
- Part time
- 190 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.