Flight controls

Question 1

Flight control switches STBY RUD / OFF and ON - What do they mean?

Answer 1

STBY RUD - Activates standby hydraulic system pump and opens standby rudder power control unit

OFF - Closes flight control SOV, isolating ailerons, elevators and rudder from associated hydraulic system pressure

ON - Guarded position (Normal)

Question 2

STANDBY HYDRAULIC LOW PRESSURE light is illuminated when?

Answer 2

Output pressure of the standby pump is low - Only armed when standby pump has been selected or automatic standby function is activated

Question 3

ALTERNATE FLAPS is the ARM position?

Answer 3

Closes the TE flap bypass valve, activates standby pump and arms the ALTERNATE FLAPS position switch

OFF (Guarded) is the normal position

Question 4

FEEL DIFF PRESS light?

Answer 4

Armed with flaps up or down and indicates excessive differential pressure in the elevator feel computer

Question 5

Stabiliser Trim Override Switch?

Answer 5

Bypasses the control column actuated stabiliser trim cutout switches to restore power to the STAB Trim Switches.

Question 6

Rudder pedals permit how much nose gear deflection for steering?

Answer 6

7 degrees either side of centre

Question 7

SPEED BRAKE DO NOT ARM Light functions when?

Answer 7

Indicates an abnormal condition or test inputs to the automatic speed brake system or during landing indicates wheel speed has dropped below 60kts and the Speedbrake lever is not in the down position

Question 8

SPEEDBRAKES EXTENDED light (Amber) ?

Answer 8

Illuminates in flight if the lever is beyond armed and the TE flaps are more than 10 or RA less than 800’
On the ground - If lever is in the down detent and ground spoilers are not stowed.

Question 9

On the ground the SPEEDBRAKE EXTENDED light does not illuminate if the system A pressure is less than ??? PSI

Answer 9

750PSI

Question 10

If the Ailerons becomes jammed, who’s Control wheel can be used to affect a roll?

Answer 10

The FO’s using the spoilers.

Question 11

How much displacement in needed by the control wheel to cause the flight spoilers to assist?

Answer 11

10 degrees

Question 12

Above what speed is Mach Trim automatically available?

Answer 12

Mach .615

Question 13

How many trim motors control the horizontal stabiliser?

Answer 13

1 DC motor powered by AC transfer bus 2

Question 14

What are the conditions for operation of the Speed Trim System?

Answer 14

110KIAS - Mach .60 / 10 Seconds after T/O / 5 Seconds following release of trim switches.

Question 15

How does the Stall identification system essentially work?

Answer 15

Reduces yaw damper movement, increases system A pressure to the feel and entering unit to double control forces and as speed decreases towards stall speed it trims nose down and enables speed trim above stick shaker AoA

Question 16

True or False?
Above 135kts both system A and B pressure are each reduced within the main PCU by approximately 25% each.

Answer 16

True

Question 17

When does the Standby rudder automatically start?

Answer 17

The Force Fight Monitor (FFM) detects opposing pressure between A and B actuators

Question 18

True or False:
A lever stop prevents the Speedbrake lever being moved beyond the flight detent in flight with the flaps up.

Answer 18

True

Question 19

When will the Speedbrakes operate with the SPEEDBRAKE LEVER in the DOWN position?

Answer 19

During Landing or RTO with speed of more than 60kts, thrust levers in Idle and Reverse thrust active

Question 20

True or False:
SFP performance aircraft is available for flap 30 and 40?

Answer 20

False - On SFP aircraft it is available at 10,15,25,30 and 40

Question 21

Flap Load Relief: Flaps set at 40, retract to 30 if speed exceeds what speed?

Answer 21

163kts

Question 22

Flap Load Relief: Flaps set at 30, retract to 25 if speed exceeds what speed?

Answer 22

176kts

Question 23

During High AoA as the aircraft approaches the stall angle, the slats automatically begin driving to the full extended position, at what flap settings?

Answer 23

1 - 5

Question 24

Leading edge uncommanded motion is detected when?

Answer 24

Two LE faps move on one wing or two or more slats move on one wing.

Question 25

Trailing edge Un-commanded motion is detected when?

Answer 25

TE Flaps move away from commanded position or continue to move after reaching commanded position or they move in an opposite direction.

Question 26

The leading edge slats are fully extended above what flap setting?

Answer 26

Flap 5 - The LE FLAPS are extended when the flaps are not up.