TM 55-1520-240-23-9
11-122
INSTALL YAW VISCOUS DAMPER
(Continued)
11-122
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
the airframe.
Ensure that the correct damper is
installed in the yaw axis. Incorrect
axis orientation will adversely affect
force feel damping characteristics of
the flight control system.
Ensure the proper damper arm
assembly is installed. Arm assembly
has shear rivets sized to specific load
requirements in the event of a damper
failure.
Ensure all hardware mounting the
damper assembly to the pallet
assembly is secure and that there is
no evidence of loose pallet inserts.
Loose attachments within flight control
secondary linkage will degrade
aircraft control, missing components
may cause loss of control.
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
the airframe.
Ensure that the correct damper is
installed in the thrust axis. Incorrect
axis orientation will adversely affect
force feel damping characteristics of
the flight control system.
Ensure the proper damper arm
assembly is installed. Arm assembly
has shear rivets sized to specific load
requirements in the event of a damper
failure.
Ensure all hardware mounting the
damper assembly to the pallet
assembly is secure and that there is
no evidence of loose pallet inserts.
Loose attachments within flight control
secondary linkage will degrade
aircraft control, missing components
may cause loss of control.
11-569
