Service difficulty report · Cyclic Stick · Hughes 369D

Difficulty date
November 16, 2004
Submitted
December 21, 2004
Operation
General aviation
Make and model
Hughes 369D
Aircraft serial
611010D
Aircraft time
13,752 hours
Part
Cyclic Stick
Part number
369H7131503
Condition
Loose
Location
Flight Controls
Stage of operation
IN
How discovered
9
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

DURING ANNUAL INSPECTION IT WAS DISCOVERED THAT THE CYCLIC STICK HAD ABOUT HALF FORE AND AFT PLAY CAUSED BY A LOOSE FIT AT THE CYCLIC PIVOT POINT AT THE CYCLIC TORQUE TUBE. WHEN IT WAS DISASSEMBLED IT WAS FOUND TO HAVE BEEN SHIMMED WITH COMPRESSOR SHIMS WHICH HAVE AN ID OF .3125 INCH AND THE BOLT IS .250 INCH THE SHIMS BEING TOO BIG, MORE THAN LIKELY, SHIFTED TO ONE SIDE OR THE OTHER OFF OF THE EDGE OF THE BEARING BUSHING AND GOT HAMMERED AND LOST TENSION THEN IT WAS A MATTER OF THE BEARINGS GOUGING INTO THE CASTING.