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Flashcards in FLIGHT CONTROLS Deck (31):
1

What power the yaw dampers?

L and C hydraulics

2

where does the yaw dampers takes is inputs from? (2)

both ADCs and
all 3 IRUs

3

When is the speedbrakes is armed for landing? (3)

Hyd press to both truck tilt actuators and
LG on the ground (no tilt sense) and
both thrust levers at idle

4

SPEEDBRAKES EXT caution light on when? (2)

Flaps in landing position (25/30) or
Captain's RA is at/or 800ft
Openskies limitation is 1000ft AGL
caution inhibited below 15ft RA

5

if L HYD PRESS lost, why don't we arm the speedbrakes in auto?

HYD press to the gear truck tilt actuators is lost. there is no way to know if and when the truck will sense a no tilt condition which would cause an auto-deployment and that would compromise safety when in flight

6

When does the speedbrakes automatically deploy during RTO? (4)

Hyd press to both truck tilt actuators and
LG on the ground (no tilt sense) and
both thrust lever at idle and
either reverse thrust lever moved reverse idle
openskies: RTO, speedbrake in manual before reverse

7

What does rudder ratio does?

rudder ratio dampens pilots inputs to the rudder
30° up to 127Kts to 3.5° at 410Kts

8

components of the rudder ratio?

use both ADCs
2 rudder ratio changer modules
a single actuator (L hyd system)

9

RUDDER RATIO light means?

above 160Kts: avoid large or abrupt rudder inputs
if normal L hyd press: -XWIND 15Kts
-do not autoland
AP up to 180ft ARTE

10

What system power the stabilizer trim?

Center and Right Hyd system

11

stabilizer trim on AP?

AP uses only 1 trim module
trimming at half the manual trim rate

12

STAB TRIM lights means?

one or more trim brakes has failed to release

13

SPOILERS light means?

one or more spoiler pairs are inoperative

14

The amber LEADING EDGE light illuminated indicates?

Slat position disagree, or
slat assymmetry

15

When is the flap load relief system armed?

When flaps 30 has been selected with the flap lever

16

The flight control shutoff switches control hydraulic power to? (3)

stabilizer, elevators and rudder

17

Which hydraulic system powers the rudder ratio changer?

Left
the ratio changer receives air data computer airspeed inputs and provides control signals to an actuator powered by the left hydraulic system

18

Automatic stabilizer trim uses?

One trim control module at half electric or alternate trim rate

19

When multiple AP are engaged, electric trimming is?

Inhibited
on single AP, electric trimming causes AP to disengage

20

Speedbrakes ARMED. What is NOT required for auto extension on landing?

Reverse thrust lever raised to its interlock stop
auto extension requires hydraulic pressure to both lg truck tilt actuators, both truck tilt sensors detect no-tilt and both thrust levers at idle.
speedbrake will also extend automatically whenever these 3 conditions occur and either reverse thrust lever is raised to its interlock stop and the speedbrake lever does not need to be ARMED

21

When do slats normally move from the TO to the landing position?

when the flap lever is moved to position 25

22

When do slats move from the TO to the landing position in ALTN?

When flaps 20 is selected using the alternate selector switch

23

When is FLAP LD RELIEF advisory message is displayed?

Flap load relief system fails to operate when required

24

How many hydraulic actuators are used for each aileron?

2
rotating either control wheel sends a signal to the aileron hydraulic actuators.
2 actuators are used for each aileron

25

Pressing either alternate flaps switch?

Shuts off hydraulic power to the flap and slat drive systems

26

a RUDDER RATIO advisory message apperas on EICAS?

the L hydraulic system actuator is automatically depressurized

27

What powers the elevator feel systems?

Center and Right hydraulics
mechanical springs provide feel following a loss of center and right hudraulic

28

How many spoiler panels are there on each upper wing surface?

6

29

During flaps/slats alternate operation, which protection is provided?

Slat asymmetry protection only

30

the amber TRAILING EDGE light illuminated indicates?

Flap position disagree, or
flap asymmetry, or
flap load relief failure

31

Flap maneuvering speeds allow for?

25 degrees bank plus additional 15 degree bank safety factor before initial buffet is encountered