Automatic Flight System

Question 1

What are the 3 flight mode annunciators?

Answer 1

Autothrottle, Roll, & Pitch.

Question 2

What does CMD (green), annunciated on the PFD, mean?

Answer 2

One or both autopilots are engaged.

Question 3

When does a rectangle around a Flight Mode Annunciator (FMA) appear?

Answer 3

When a mode changes.

Question 4

How does an FMA display an Armed Mode?

Answer 4

Shown in smaller white letters at the bottom of the flight mode annunciation boxes.

Question 5

What FMA annunciation indicates that power has been removed from the autothrottle servos during takeoff?

Answer 5

THR HLD

Question 6

Pushing an illuminated mode switch on the Mode Control Panel (MCP) does what to the mode?

Answer 6

Indicates the mode can be deselected by pushing the switch.

Question 7

What is displayed by turning a Flight Director (F/D) switch ON?

Answer 7

Turning a F/D switch ON displays command bars on the respective pilot’s attitude indicator if command pitch and roll modes are engaged.

Question 8

How is the master FCC determined?

Answer 8

Is determined by the first F/D switch being turned on with no autopilot or coupled with the first engaged autopilot.

Question 9

What are the required conditions for A/P engagement?

Answer 9

No force is being applied to the control wheel & the STAB TRIM AUTOPILOT cutout switch is at NORMAL.

Question 10

What does the STAB OUT OF TRIM (amber) light indicate?

Answer 10

Autopilot is not trimming the stabilizer properly.

Question 11

When does the A/P Disengage Light illuminate STEADY RED?

Answer 11

Stabilizer out of trim below 800 ft RA on dual channel approach, ALT ACQ mode inhibited during A/P go-around if stabilizer not trimmed for single A/P operation, disengage light TEST switch held in position 2, or automatic ground system tests fail.

Question 12

What does the A/T LIM indication (white) on the Upper Display Unit mean?

Answer 12

Indicates the FMC is not providing the A/T system with N1 limit values.

Question 13

When is the MCP IAS/MACH display blank?

Answer 13

VNAV mode engaged, A/T engaged in FMC SPD mode, or during 2 engine AFDS go-around.

Question 14

What triggers/causes the MCP IAS/MACH display to automatically and manually switch between indicated airspeed and Mach number?

Answer 14

Automatic changeover occurs at approximately FL260. Manual changeover can be initiated by pressing the C/O switch.

Question 15

The Bank Angle Selector sets maximum bank angle for AFDS operation in which Roll modes?

Answer 15

HDG SEL or VOR modes.

Question 16

Engaging LNAV outside of 3 NM from an active route requires what intercept criteria?

Answer 16

Be on an intercept course of 90° or less & intercept route segment before active waypoint.

Question 17

After engaging LVL CHG for a climb, what does the FMA annunciates for the Autothrottle mode?

Answer 17

N1 for climb and RETARD followed by ARM for descent.

Question 18

After localizer and glide slope capture, what will exit the APP mode?

Answer 18

Pushing a TO/GA switch, disengaging A/P and turning off both F/D switches, or retuning a VHF NAV receiver.

Question 19

What will happen after activating either TO/GA switch above 2,000’ RA with flaps up and G/S not active?

Answer 19

Nothing.

Question 20

When is Glide Slope capture inhibited?

Answer 20

Prior to Localizer capture.

Question 21

After pushing TO/GA once, on a dual A/P approach prior to touchdown, what will the roll mode command?

Answer 21

Roll Mode annunciation on the FMA is blank (Current Track)

Question 22

After pushing TO/GA once, on a dual A/P approach prior to touchdown, what rate of climb will the N1 thrust provide?

Answer 22

1000 to 2000 fpm rate of climb.

Question 23

With the second push of TO/GA, on a dual A/P approach prior to touchdown, what N1 thrust is commanded?

Answer 23

Full go-around N1 limit.

Question 24

When will overspeed or underspeed limiting symbols appear in the MCP speed window?

Answer 24

When the commanded speed cannot be reached.

Question 25

What type of deviation alerting is available when deviating from the selected altitude?

Answer 25

Momentary tone sounds and the current altitude box turns amber and begins to flash.