Service difficulty report · Bearing · Bell 407

Difficulty date
December 1, 2016
Submitted
December 1, 2016
Operation
Air carrier
Filed by
HEER617E
PHI Aviation, LLC
Aircraft
N441PH
Make and model
Bell 407
Aircraft serial
54081
Aircraft time
4,844 hours
Engine
Allsn 250C47B
Engine time
2,475 hours
Part
Bearing
Part number
M25010116
Part serial
NWE106590
Condition
Spalled
Location
Engine Gearbox
Part time
2,475 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 11-14-16 DUE TO METAL IN OIL. SECONDARY BEARING EXHIBITED SPALLING BALLS. REPLACED WITH NEW SECONDARY BEARING.

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