Service difficulty report · Bearing · Bell 407

Difficulty date
March 6, 2012
Submitted
March 28, 2012
Operation
Air carrier
Aircraft
N429PH
Make and model
Bell 407
Aircraft serial
53626
Aircraft time
3,224 hours
Engine
Allsn 250C47B
Engine time
10,601 hours
Part
Bearing
Part number
6871505
Part serial
MP087131
Condition
Spalled
Location
Turbine Section
Part time
1,493 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.

What was found

ENGINE WAS REMOVED DUE TO CYCLED WHEELS. NR 5 BEARING EXHIBITS SPALLING AT OUTER RACE SPLIT. REPLACED BEARING WITH SERVICEABLE PART.

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