Flight Controls

Question 1

Which Hydraulic System(s) normally power the primary flight controls?

Answer 1

System A & B

Question 2

The loss of Hydraulic Systems A and B will render which spoiler panels inoperative?

Answer 2

All Panels

Question 3

How do ailerons and elevators operate with the loss of both Hydraulic Systems A and B?

Answer 3

Operated manually thru a mechanical path.

Question 4

What happens when the FLT CONTROL A switch is positioned to STBY RUD?

Answer 4

Activates the Standby Hydraulic System & opens the Standby Rudder Shutoff Valve (allowing Standby Hydraulic System pressure to the Standby Rudder PCU).

Question 5

What powers the rudder during Manual Reversion?

Answer 5

Operated by the Standby Hydraulic System

Question 6

Which are the roll control surfaces and how are they powered?

Answer 6

Ailerons & flight spoilers / systems A & B.

Question 7

What happens when a single AILERON trim switch is pushed?

Answer 7

Nothing.

Question 8

Why is aileron trim prohibited with the autopilot engaged?

Answer 8

Autopilot overpowers the trim and hold the control column in a neutral position. Excessive control forces could result when autopilot disengaged.

Question 9

How many degrees of control wheel displacement initiates spoiler deflection?

Answer 9

10 degrees or 1.6 units.

Question 10

Which Flight Control Switch(es) are used for maintenance purposes only?

Answer 10

Spoiler A & B switches.

Question 11

With a jammed or restricted Spoiler System, how is roll controlled?

Answer 11

Captain’s control wheel actuates the Aileron Transfer Mechanism and provides roll control using the ailerons.

Question 12

With a jammed or restricted Aileron System, how is roll controlled?

Answer 12

Aileron Control System is jammed, force applied to the First Officer’s control wheel actuates the Aileron Transfer Mechanism and provides roll control using the Flight Spoilers.

Question 13

What does an illuminated FEEL DIFF PRESS light (amber) indicate?

Answer 13

Indicates excessive differential pressure within the Elevator Feel Computer.

Question 14

How does actuating the Stabilizer Trim Switch on the control wheel affect autoflight?

Answer 14

Automatically disengages the autopilot.

Question 15

What is the purpose of the STAB TRIM switch on the Aft Electronic Panel?

Answer 15

When switch positioned to override electric trim can be actuated regardless of column position.

Question 16

What does the green band of the STAB TRIM indicator on the Control Stand indicate?

Answer 16

Takeoff trim range.

Question 17

What does an illuminated SPEED TRIM FAIL light (amber), during Master Caution Recall, indicate?

Answer 17

Indicates failure of a single FCC channel.

Question 18

Describe the functions of the Stall Management Yaw Damper (SMYD) computers.

Answer 18

Outputs for all stall warning to include: Stick Shaker, signals to the pitch limit indicator, and airspeed displays, and the GPWS windshear detection and alert.

Question 19

Which light is armed by selecting FLT CONTROL A or B switch to STBY RUD?

Answer 19

Standby LOW PRESSURE amber light.

Question 20

When does the Main Rudder Power Control Unit (PCU) limit full rudder authority?

Answer 20

Speeds above 135 kts.

Question 21

What does the Rudder Trim Control Switch do?

Answer 21

Electrically repositions the Rudder Feel and Centering Unit which adjusts the rudder neutral position.

Question 22

How do you activate the Standby Yaw Damper?

Answer 22

Loss of system A & B with both FLT CONTROL switches being repositioned to STBY RUD.

Question 23

What are the positions of the Speed Brake Lever, and what are the limitations?

Answer 23

Down, armed, Flight detent, & up / can’t go beyond the flight detent in flight.

Question 24

What does the SPEED BRAKE DO NOT ARM light (amber) indicate?

Answer 24

Abnormal condition or abnormal test inputs to the Automatic Speed Brake System.

Question 25

During landing, when do the ground spoilers deploy?

Answer 25

SPEED BRAKE lever is in the ARMED position, SPEED BRAKE ARMED light is illuminated, radio altitude is less than 10 ft, both thrust levers are retarded to IDLE, and main landing gear wheels spin up (more than 60 kts), or landing gear strut compresses on touchdown

Question 26

What would cause the LE FLAPS TRANSIT light (amber) to illuminate?

Answer 26

Any LE device in transit, any LE device not in programmed position with respect to TE flaps, a LE uncommanded motion condition exists (2 or more LE flaps or slats have moved away from their commanded position), & during alternate flap extension until LE devices are fully extended and TE Flaps reach Flaps 15

Question 27

When do the LE slats deploy to FULL EXTEND?

Answer 27

Flap position greater than 25 position.

Question 28

Which flap settings have load relief?

Answer 28

Operative at the Flaps 10, 15, 25, 30 and 40 positions.

Question 29

When and how do the auto slats operate?

Answer 29

High angles of attack during takeoff or approach to landing and TE flaps at 1 to 25. Uses system B or system A thru the PTU.

Question 30

What does an AUTO SLAT FAIL light (amber) illumination during Master Caution Recall indicate?

Answer 30

Indicates a failure of a single Stall Management Yaw Damper (SMYD) computer.

Question 31

Which devices move when the Alternate Flaps switch is placed in the DOWN position? Up position? Which system(s) move these devices?

Answer 31

Extends the trailing edge flaps using an electric motor and fully extends the leading edge devices using standby hydraulic system. / leading edge devices can’t be retracted once extended.