Service difficulty report · Bearing · Bell 407

Difficulty date
February 2, 2017
Submitted
February 2, 2017
Operation
Air carrier
Aircraft
N440PH
Make and model
Bell 407
Aircraft serial
53327
Aircraft time
19,284 hours
Engine
Allsn 250C47B
Engine time
6,342 hours
Part
Bearing
Part number
M250101210
Part serial
FAG121039
Condition
Spalled
Location
Pto
Part time
3,878 hours
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 METAL IN OIL. PTO BALL BEARING EXHIBITED SEVERE SPALLING OF INNER RACE. REPLACED PTO BALL BEARING.

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