Steve Pierce
BENEFACTOR
Graham, TX
Doing a condition inspection on a high time (600 plus hours/2 yrs) Carbon Cub FX3. The aileron cable that goes over the spar is worn at the pulley. This pulley is smaller than on Piper aircraft as the pulley is on top of the spar rather than behind it thus making a smaller radius. I think between that and the higher cable tensions 40 plus/minus 5 lbs are causing this issue. I wasn't expecting to find anything but ran my finger along the cable where it runs across the pulley and it felt rough. After picking at it with my thumb nail I exposed cable strands. Curious if anyone else finds anything like this since the Carbon Cub SS, EX/FX2 and EX/FX3 are designed this was. The X Cub uses a push rod.
Also, there is no IPC (illustrated parts catalog) for these airplanes and when you order parts be aware that what I call the top aileron cable from the top of the aileron bellcrank to the bottom of the rear stick is called a bottom aileron cable (prt# SK97410) by Cub Crafters and the balance cable from the bottom of the aileron bellcrank on one side, through the fuselage to the bottom aileron bellcrank on the other side is considered the top aileron cable (prt# SC97400) by Cub Crafters. Hope this saves some else having to wait a week when they chose not to spend the extra money on overnight shipping for the parts. This is not a dig at Cub Crafters but a shout out to the folks who fly and maintain these aircraft as to what to look for in the field.
Also, there is no IPC (illustrated parts catalog) for these airplanes and when you order parts be aware that what I call the top aileron cable from the top of the aileron bellcrank to the bottom of the rear stick is called a bottom aileron cable (prt# SK97410) by Cub Crafters and the balance cable from the bottom of the aileron bellcrank on one side, through the fuselage to the bottom aileron bellcrank on the other side is considered the top aileron cable (prt# SC97400) by Cub Crafters. Hope this saves some else having to wait a week when they chose not to spend the extra money on overnight shipping for the parts. This is not a dig at Cub Crafters but a shout out to the folks who fly and maintain these aircraft as to what to look for in the field.