INSPECT FLIGHT CONTROL SYSTEM BELLCRANKS AND IDLER ARMS
Bellcranks and idler arms are
made from 2014-T6 aluminum alloy,
7075-T73, ZK60A-T5 magnesium
alloy, or 4340 steel forgings.
Steel bushings (standard and
nonstandard) are installed in bolt
holes of bellcranks and arms.
Inspect nicks, scratches, scores, corrosion pits,
or similar damage. Depth of damage must not be
more than 0.040 inch or 10 percent of material
thickness, whichever is less, after burnishing. If
damage is more, replace part.
Burnish around filler, radius, or bolt holes within
limits of step 1.
If component is installed in flight control
system, inspect bearings for play (Task 11-9). If
component is removed, inspect bearings for play
END OF TASK