PRIOR TO MAINTENANCE TEST FLIGHT (CONT)
and be replaced by TEST.
EHSI - DTRK, NM, GSPD, and
HDG displays - Replaced with
AP disconnect horn sounds after 5
to 7 seconds.
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
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 - Check
Altitude alerter - Check as follows:
Pause for a few seconds between each step to allow
time for proper indications.
Altitude preselector - Set to
more than 1000 feet above
altimeter. Pilots altimeter
altitude alert annunciator light
should be extinguished.
Pilots altimeter barometric set
knob - Slowly increase