Service difficulty report · Bearing · Bell 407

Difficulty date
July 28, 2011
Submitted
September 26, 2011
Operation
Air carrier
Aircraft
N410PH
Make and model
Bell 407
Aircraft serial
53636
Aircraft time
5,732 hours
Engine
Allsn 250C47B
Engine time
2,335 hours
Part
Bearing
Part number
6871505
Part serial
MP90529
Condition
Spalled
Location
Nr 5
Part time
346 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 REMOVED DUE TO CRACKED EXHAUST. NR 5 BEARING EXHIBITED SPALLING OF OUTER RACE. SCRAPPED PART. REPLACED WITH NEW.

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