Service difficulty report · Bearing · Bell 407

Difficulty date
October 12, 2011
Submitted
January 23, 2013
Operation
Air carrier
Make and model
Bell 407
Aircraft time
1,604 hours
Engine
Allsn 250C47B
Part
Bearing
Part number
407310101105
Part serial
LK13513
Condition
Debonded
Location
M/R Hub
Part time
2,430 hours
Component
Hub
Component part number
407010100123
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

(CAN) WHILE CARRING OUT A DAILY CHECK, A LITTLE RUBBER AROUND THE SPINDLE OF THE SHEAR BEARING. FURTHER INVESTIGATION LEAD TO THE DEBONDING OF THE RUBBER COMPOUND TO THE CENTER SPINDLE.

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