What was found
TURBINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF NR 5 BEARING FOUND SPALLING ON OUTER RACE. REPLACED WITH NEW.
- Difficulty date
- January 8, 2012
- Submitted
- January 10, 2012
- Operation
- Air carrier
- Aircraft
- N501PH
- Make and model
- Bell 407
- Aircraft serial
- 53401
- Aircraft time
- 13,943 hours
- Engine
- Allsn 250C47B
- Engine time
- 6,616 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Part serial
- MP090979
- Condition
- Spalled
- Location
- Turbine
- Part time
- 1,527 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.