TM 1-1510-224-CL
NOTE
Preflight test of composite mode will cause
same results as above test, except digital
heading readout will be replaced with a red
FAIL indication, and expanded localizer scale
and pointer will be removed.
A localizer frequency must be tuned on both
NAV receivers to annunciate ILS comparator
monitor.
EFIS test is inhibited during glideslope capture.
AUTOMATIC FLIGHT CONTROL SYSTEM
1.
Altitude alerter - Check as follows:
NOTE
Pause for a few seconds between each step
to allow time for proper indications.
a.
Altitude preselector - Set to more than 1000 feet
above altitude set on pilot's altimeter. Pilot's
altimeter altitude alert annunciator light should be
extinguished.
b.
Pilot's altimeter barometric set knob - Slowly
increase pilot's altimeter setting.
c.
Altitude alerter annunciator and horn - Verify that
altitude alerter annunciator on pilot's altimeter
illuminates and altitude alerter horn sounds when
pilot's altimeter reading is approximately 1000 feet
from value set on altitude select controller.
d.
Pilot's altimeter - Reset to field elevation.
e.
Altitude preselector - Reset to field elevation.
f.
Pilot's altimeter barometric set knob - Slowly
increase pilot's altimeter setting.
g.
Altitude alerter annunciator and horn - Verify that
the altitude alerter annunciator on pilot's altimeter
illuminates and altitude alerter horn sounds when
altimeter reading is approximately 250 feet from
value set on altitude alert controller.
h.
Pilot's altimeter - Reset to field elevation.
P-4
