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The pilot is immediately warned of this condition by an amber A/P FAIL
light.
When a failure cannot be isolated to a specific channel, the
annunciators indicate the axis that has failed by flashing both amber
lights for that axis and the red segment of the A/P FAIL light.
During normal (no failure) conditions the four switch/lights remain
off. The switch/lights allow the pilot to manually select which
channel is operating in the single channel configuration by pushing
the appropriate switch/light when the autopilot is disengaged, then
re-engaging the autopilot.
B. Autopilot Self-Test
Prior to each flight, the pilot tests for proper operation of the autopilot
monitors, brakes and torque limiters by selection of a self-test mode
switch/light located on the autopilot status panel (refer to Figure 17).
Engaging the autopilot begins the test sequence.
SECTION 4
Page 43
Oct 03/83
canaaair
chanencjer
OPERATING MANUAL
PITCH I SWITCH/LIGHT
Amber OFF light comes on to indicate a
malfunction and disengagement of PITCH I
channel.
Pressing PITCH I switch/light when the
autopilot is disengaged reverts the system to
single channel PITCH 2 operation.
YAW I SWITCH/LIGHT
Amber OFF light comes on to indicate a
malfunction and disengagement of YAW I
channel.
Pressing YAW I switch/light when the yaw
damper is disengaged reverts the system to
single channel YAW 2 operation.
ROLL 1 SWITCH/LIGHT
Amber OFF light comes on to indicate a
malfunction and disengagement of ROLL I
channel.
Pressing ROLL I switch/light when the
autopilot is disengaged reverts the system to f""^
single channel ROLL 2 operation.
ROLL 2 SWITCH/LIGHT
Amber OFF light comes on to
indicate a malfunction and
disengagement of ROLL 2
channel.
Pressing ROLL 2 switch/light
when the autopilot is
disengaged reverts the system
to single channel ROLL I
operation.
PITCH 2 SWITCH/LIGHT
Amber OFF light comes on to indicate
a malfunction and disengagement of
PITCH 2 channel.
Pressing PITCH 2 switch/light when
the autopilot is disengaged reverts the
system to single channel PITCH I
operation.
TEST 1 SWITCH
ROLL 1 OFF, PITCH 1 OFF and
YAW 1 OFF lights come on
when TEST 1 switch is pressed,
indicating that the monitor
brakes have been applied and
that torque limiting is present
in channel 1.
Pressing YAW 2 switch/light when the
yaw damper is disengaged reverts the
system to single channel YAW I operation.
TRIM UP AND DN ANNUNCIATOR LIGHTS
Amber UP light comes on if a nose-up
out of trim condition exists.
Amber DN light comes on if a nosedown
out of trim condition exists.
TEST 2 SWITCH
ROLL 2 OFFr PITCH 2 OFF and YAW 2 OFF
lights come on when TEST 2 switch is
pressed, indicating that the monitor brakes
have been applied and that torque limiting is
present in channel 2.
Autopilot Status Panel SECTION 4
Figure 17 Page 44
Oct 03/83
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