Service difficulty report · Spring · Bell 427

Difficulty date
November 8, 2002
Submitted
January 21, 2003
Operation
Air carrier
Make and model
Bell 427
Part
Spring
Part number
5161A
Condition
Mismanufactured
Location
Grease Fitting
Component
Grease Fitting
Component part number
NAS5161A
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) WHEN GREASING THE OUTER SWASHPLATE CAP ASSY. IT WAS NOTED THAT THE LUBRIFICATION FITTING WOULD JAM OCCASIONALLY, PREVENTING GREASE ENTERING THE CAP ASSY. AT THE NEXT ATTEMP THE GREASE WAS FREE TO ENTER THE CAP ASSY, THERE WAS NO RESTRICTION. AFTER INVESTIGATION THE BALL AND SPRING OF LUBRIFICATION FITTING WERE FOUND INSIDE THE CAP ASSY. FOUND THE SPRING TO BE MISMANUFACTURED IN RESPECT TO THE SPEC PICTORIAL (CYLINDRICAL SHAPE INSTEAD OF CONE SHAPE.)

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