INSTALL AFT BELLCRANK STA 482
FLIGHT SAFETY PARTS
This is an installation critical flight
safety part. All aspects of its assembly
and installation must be ensured at
each joint connection and mounting to
Ensure that all bushings are properly
installed (including orientation) in
each input and output clevis of the
Ensure bellcrank hub bearings are
serviceable and properly installed.
Ensure proper orientation of the
bellcrank assembly at installation.
Ensure proper attaching hardware
(impedance type bolt, nut, and
washers) is installed including
verification of bolt head orientation,
torque, and installation of cotter pins.
Loose attachments within flight control
primary linkage will degrade aircraft
control. Missing components will
cause loss of control.
Bellcrank must be positioned as
indicated by arrow and the word
UP on bellcrank; otherwise, serious
damage to components can occur.
All bolts installed in flight control
system are self-retaining (impedance)
bolts. During installation of flight
controls, make sure all bolts used are
Position bellcrank (1) in control support (2).
Have helper push bolt (3) and washer (4), from
outside through access (5).
Guide bolt (3) and washer (4), through bellcrank
(1) and control support (2).