What was found
ENGINE REMOVED DUE TO DEBRIS FOUND ON SCAVENGE FILTER. SPALLING FOUND ON OUTER RACE OF NR 5 BEARING AT SPLIT. REPLACED NR 5 BEARING WITH NEW.
- Difficulty date
- January 13, 2012
- Submitted
- January 19, 2012
- Operation
- Air carrier
- Aircraft
- N427PH
- Make and model
- Bell 407
- Aircraft serial
- 53863
- Aircraft time
- 4,296 hours
- Engine
- Allsn 250C47B
- Engine time
- 7,848 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWF109373
- Condition
- Spalled
- Location
- Turbine
- Part time
- 334 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.