What was found
ENGINE MAKING METAL. UPON INSP OF TURBINE, NR 5 BEARING, IT WAS DETERMINED NR 5 BEARING WAS CAUSE OF METAL DUE TO DETERIORATION OF BALL BEARINGS. IN CAGE.
- Difficulty date
- August 5, 2011
- Submitted
- August 5, 2011
- Operation
- Air carrier
- Aircraft
- N405AL
- Make and model
- Bell 407
- Aircraft serial
- 53480
- Aircraft time
- 6,612 hours
- Engine
- Allsn 250C47B
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- 6871505
- Part serial
- MP087924
- Condition
- Deteriorated
- Location
- Engine
- Part time
- 1,623 hours
- Component
- Turbine · C47
- 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.