Service difficulty report · Bearing · Bell 407

Difficulty date
April 19, 2015
Submitted
April 19, 2015
Operation
General aviation
Aircraft
N421PH
Make and model
Bell 407
Aircraft serial
53749
Aircraft time
8,425 hours
Engine
Allsn 250C47B
Engine time
2,125 hours
Part
Bearing
Part number
6889326
Part serial
MP006903
Condition
Spalled
Location
Gearbox
Part time
2,125 hours
Component
Gearbox
Component part number
23063393
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 4-9-15 DUE TO METAL IN OIL. PTO BALL BEARING EXHIBITS SPALLING ON BALLS. REPLACED PTO BALL BEARING.

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