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- Aircraft position: nose landing gear is
compressed and downlocked.
- Via the MCDU: nose landing gear extended or
uplocked can be simulated.
LH + RH MAIN LANDING GEAR
- Aircraft position: Main gear is compressed and
downlocked.
- Via the MCDU: Main gear extended or uplocked
can be simulated.
NOTE: Using the RETURN line key allows the landing
gear system to be reconfigured to the normal
position.
TMULDGRZZ-T01 LEVEL 3
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CFDS SPECIFIC PAGE PRESENTATION - LGCIU 1
TMULDGRZZ-P01 LEVEL 3
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CFDS SPECIFIC PAGE PRESENTATION
BSCU A
NOTE: STEERING DATA function access is only available
with BSCU standard 8.
PIN-PROG SELECTION
As braking and anti-skid computation depend on tire
diameter, if, for any reason you have to use a
compatible BSCU from another aircraft, some actions
must be done (refer to AMM).
This function is used after removal/installation of
the BSCU. Its purpose is to adapt the BSCU
pin-programming to the aircraft pin-programming.
At the end of menu mode, the system must be set to
"OFF" then to "ON" to be correctly reset using the
A/SKID & N/W STRG switch.
Moreover, the pin-programming modification must also
be performed on the second BSCU system.
NOTES: The pin-programming reference can be checked
using system 1 and 2 LRU IDENTIFICATION pages.
PIN-PROG SELECTION menu pages can be slightly
different depending on if BSCU standard 7 or
BSCU standard 8 is installed. Whatever your
configuration is, the principle remians the
same.
STEERING DATA
STEERING DATA function displays in real time and clear
language some parameters of the nose wheel steering
system. This function allows any possible
malfunctioning of this system to be identified in case
of a non axial roll-out.
Displayed data
- SELV ORDER = selector valve status (OPEN or
CLOSED).
- SSV CURRENT = servovalve current comprised
between -10mA and +10mA.
- STEER ORDER = commanded steering angle.
- CAPT ANGLE = CAPT steering handwheel angle.
- FO ANGLE = F/O steering handwheel angle.
- PEDAL ANGLE = ELAC angle.
- NWS ANGLE3GC= RVDT COM angle.
- SSV SPOOL = LVDT spool position comprised
between -0.6 mm and +0.6 mm.
The REFRESH key is used to refresh the values of the
nose wheel steering parameters, as required.
TMULDGRZZ-T02 LEVEL 3
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TMULDGRZZ-P02 LEVEL 3
CFDS SPECIFIC PAGE PRESENTATION - BSCU A
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CFDS SPECIFIC PAGE PRESENTATION
TPIS
REF PRESSURE
This item displays the values of the landing gear wheel
reference pressures wired at the rear of the computer
by pin programming.
GROUND FAULTS
This mode gives all class 1, 2 and 3 faults that have
occured on the ground with a memory capacity of 3
faults maximum during the last 64 flights.
TMULDGRZZ-T03 LEVEL 3
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CFDS SPECIFIC PAGE PRESENTATION - TPIS
TMULDGRZZ-P03 LEVEL 3
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TMULDGRZZ LEVEL 3
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