What was found
IMPELLER BEARING NR 5 EXHIBITED SPALLING OUTER RACE. REPLACED WITH SERVICEABLE BEARING.
- Difficulty date
- November 28, 2011
- Submitted
- December 12, 2011
- Operation
- Air carrier
- Aircraft
- N440PH
- Make and model
- Bell 407
- Aircraft serial
- 53327
- Aircraft time
- 13,303 hours
- Engine
- Allsn 250C47B
- Engine time
- 7,602 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Part serial
- MP091067
- Condition
- Spalled
- Location
- Turbine Wheel
- Part time
- 1,262 hours
- Component
- Turbine Assy
- 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.