Auto Flight

Question 1

Where do the Flight Control Computers process inputs from?

Answer 1

• Mode Control Panel (MCP)
• Flight Management Computers (FMCs)
• Auto Throttle System
• Control column/ Wheel position
• Autopilot actuator position

Question 2

What do the FCCs provide commands to?

Answer 2

• Speed trim
• Mach trim
• Altitude Alert
• Autopilot disengage warning

Question 3

What speed will SPEED hold mode with the A/T system engaged?

Answer 3

The speed set in the airspeed window

Question 4

What is the indication if the speed selected is greater than the overspeed limit?

Answer 4

A flashing “8” is displayed next to the speed

Question 5

What is the indication if the speed selected is lower than the minimum speed?

Answer 5

A flashing “A” is displayed next to the speed

Question 6

What does pressing the N1 button do?

Answer 6

Commands the A/T to hold a specific N1 setting

Question 7

What does the Change Over (C/O) button do?

Answer 7

Manually toggles the speed control between indicated airspeed and mach number

Question 8

What altitude does the speed control automatically transition from indicated airspeed and Mach?

Answer 8

26,000

Question 9

What does the SPD INTV button do?

Answer 9

Controls the speed while operating in VNAV

Question 10

What does the LNAV button do?

Answer 10

Commands the auto flight system to intercept and track an active route programmed in the FMC

Question 11

What does the LVL CHG button do?

Answer 11

Commands the auto flight system to climb or descend to the selected altitude

Question 12

What does the VNAV button do?

Answer 12

Commands the auto flight system to follow the vertical guidance provided by the FMC

Question 13

What does the ALT INTV switch do?

Answer 13

Allows modification to altitude constraints and initiates climbs and descents when operating in VNAV

Question 14

What is CWS mode?

Answer 14

Control Wheel Steering mode

Question 15

After the APP light extinguishes, how can you disengage the APP mode?

Answer 15

• Pressing a TO/GA switch
• Disengaging the auto pilot and turning off both flight directors
• Selecting a different frequency in one of the VHF NAV receivers

Question 16

When can you no longer de-select a flight mode on the MCP?

Answer 16

When the light is extinguished

Question 17

How can you disengage all flight modes?

Answer 17

• Disengaging the autopilot

- Turning both FDs off

Question 18

How is the auto-throttle system engaged?

Answer 18

• Manually selected the desired mode on the MCP
• Allowing the auto flight system to select the proper mode
• Pressing either one of the TO/GA switches

Question 19

What A/T mode disengages the servo motors?

Answer 19

• ARM

- THR HLD

Question 20

What is the minimum altitude for autopilot engagement?

Answer 20

1,000 AGL

Question 21

When will the autopilot automatically disengage?

Answer 21

• Loss of IRU
• Loss of hydraulic pressure
• Electric failure
• Sensor failure

Question 22

The A/P disconnect light illuminates steady red for the following conditions:

Answer 22

• ALT ACQ inhibited during A/P go-around if not trimmed for single A/P operation
• When the disengage light test is held in position 2, or when the automatic ground system test fails