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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 554.10.
Landing Gear Indicator, AutoBrake, Antiskid &
NoseWheel Steering System (A320)
LDG Gear Lights
Display proximity detector information received
from LGCIU 1. The LDG GEAR indicator panel
does not illuminate when LGCIU 1 is not
electrically powered.
· UNLK Illuminate
red if the gear is not
locked in the selected position.
· Lights Illuminate
geen if the gear is
locked down.
AUTO/BRK Switches
Arm the required deceleration rate. The ON
light illuminates blue to indicate positive
arming. The DECEL light illuminates green
when actual airplane deceleration corresponds
to 80% of the selected rate.
· LO Selected
for landing. If the
deceleration rate from reverse thrust is
not adequate, progressive pressure is
applied to the brakes four seconds
after ground spoiler deployment to
provide a fixed deceleration rate.
· MED Selected
for landing. If the
deceleration rate from reverse thrust is
not adequate, progressive pressure is
applied to the brakes two seconds
after ground spoiler deployment to
provide a fixed deceleration rate.
· MAX Selected
for takeoff. During an
aborted takeoff, maximum brake
pressure is applied when ground
spoilier deployment occurs.
A/SKID & N/W STRG Switch
· ON
· If green hydraulic pressure is
available:
· Antiskid is available.
· Nosewheel steering is
available.
· If green hydraulic pressure is
lost:
· Yellow hydraulic
pressure takes over
automatically to
supply the brakes.
· Antiskid remains
available.
· Nosewheel steering is
lost.
· OFF
· Yellow hydraulic pressure
supplies the brakes.
· Brake pressure must be
limited by referring to the triple
indicator to avoid wheel
locking.
· Differential braking remains
available via the pedals.
· Antiskid is deactivated.
· Nosewheel steering is lost.
TERR ON ND
Displays a "Terrain Map Display" on the ND for
aircraft equipped with Enhanced Ground
Proximity Warning System (EGPWS).
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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 564.11.
Landing Gear Selector(A320)
Landing Gear Lever
Provides electrical signals to the two LGCIUs
which control the green hydraulic supply.
· UP Retracts
landing gear. When the
gear doors open, the main wheels are
automatically braked by the normal
brake system. The nose wheel are
stopped by a brake band in the gear
well during door closure. When the
lever is UP, the hydraulic supply is
automatically cut off above 260 KIAS
· DOWN Extends
the landing gear.
The system remains pressurized if
green hydraulic pressure is available.
An interlock mechanism prevents
unsafe retraction by locking the lever
in the DOWN position when any gear
shock absorber is compressed or the
nosewheel steering is not centered.
DOWN Arrow
Illuminates red associated with ECAM "GEAR
NOT DOWN" warning if the landing gear is not
downlocked with any one of the following:
· Radio altitude less than 750 feet and
both engine's N1 below 75%.
· Radio altitude less than 750 feet and
Flaps 3 or FULL selected.
· Flaps FULL selected with both radio
altimeters failed
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Flight Deck Documentation AIRBUS A320
12.11.06 Ralf Anderseck Seite 574.12.
Clock(A320)
CHR Button
First push starts Sweep Second Hand and minutes
display in the ET/CHR indicator. Second push stops
second hand and freezes minutes display. Third
push resets second hand to the 12 o'clock position
and blanks CHR indicator.
DATE Button
Sets the Chronometer in the Date Mode. The
date is set by positioning the UTC Selector to
HSD (day), MSM (month) and HLDY (year).
Return the UTC Selector to the RUN position.
Pressing the DATE button again will resume
the display of UTC time.
ET Counter
Displays elapsed and chronograph time.
　
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