INSTRUMENTS AND RECORDERS, AIR DATA SYSTEM
Description
Aircraft Operations Manual
12/1.1
PAGE
21
Apr 01/15
Selected altitude display.
−
The two left digits displays thousands of feet.
−
The digit right of the comma displays
hundereds of feet.
−
The last two digits are stationary zeros.
−
The display will present a Warning Flag
if a fault is detected.
Altitude set knob.
Turning the knob will change altitude in
100 feet increments.
ALT ALERT buttonlight (amber)
.
Illuminates steady when approaching, and
flashes when deviating from selected alti-
tude.
If an alert has been triggered, pressing the
buttonlight will cancel the alert.
The buttonlight also incorporates a press to
test feature. The Alert light comes on and
the warning flag is activated when the
buttonlight is pressed.
A
A
ALTITUDE PRESELECTOR ALERTER
ALTITUDE SET
PUSH TO
ALT
ALERT
CANCEL
5 6
0 0
A12711
Fig. 14 Altitude Preselector Alerter (APA)
−
control and light