Chapter 3: Automatic Flight

Question 1

Bank Button

Answer 1

Limits bank to 17 degrees in HDG mode

(Post Mod LOAD 27.1) Limits bank to 15 degrees in HDG Mode

Question 2

AFCS (Automatic Flight Control System) Components

Answer 2

• Flight Director (FD)
• Autopilot (AP) with coupled Go-Around (GA)
• Yaw Damper (YD)

Question 3

FD Automatically turns on when:

Answer 3

• TO/GA button actuation
• Manual selection of any vertical or lateral mode
• AP engagement
• WSHR Detection

Question 4

To turn off the FD…

Answer 4

Press FD on the coupled side (with AP disengaged) to turn off both FDs.
OR…
Press FPA when FPA mode is already selected
*FD off => SpdT

Question 5

Autopilot Non-normal and Abnormal Disengagement

Answer 5

• AP is pressed on guidance panel
• Either manual trim switch is pressed
• Either stick shaker activated
• Windshear escape guidance activated
• Reversion of FBW to direct mode
• Aileron or elevator disconnected
• Pilot in put on control column; long-time light force, or short-time strong force
• Internal monitor failure

Question 6

Roll Mode Bank Limits

Answer 6

Current Bank < 6 degrees => commands wings level
6 degrees < Current Bank < 35 degrees => Maintains current bank
Current Bank > 35 degrees => Maintains 35 degrees

Question 7

Takeoff Pitch Limits

Answer 7

For all engines operative: V2 + 10 kt
Failure below V2: V2
Failure between V2 and V2 + 10: Current Speed
Failure above V2 + 10: V2 + 10

TO pitch limited between 8 and 18 degrees
Max speed target VFE - 5
Min speed target VShaker + 10 (Vshaker + 3 for EO)

Question 8

Go-Around Logic

Answer 8

Initially commands 8 degrees pitch to intercept speed target, then tracks speed
Speed Target:
-All engines, Vref + 20
-One engine, Vac
If speed target is invalid, commands 8 degrees pitch

Will not capture a selected altitude within 400’

GA pitch limited between 8 and 18 degrees
Max speed target VFE - 5
Min speed target VShaker + 10 (Vshaker + 3 for EO)

Question 9

VGP Activation

Answer 9

Can be armed within 30 nm radial distance of destination
Activated when 5 nm from FAF or within 30 nm of destination and “activate vectors”
*Do NOT arm or activate VGP in a holding pattern

Question 10

ILS “Checkpoints”

Answer 10

1500 RA – System attempts to arm the highest approach capability
800 RA – Approach capability locked in

Question 11

Autothrottle Low Speed Protection

Answer 11

With flaps 0:
Below 20,000’ – 1.2 Vs
20,000’-30,000’ – Linear between 1.2 Vs and 1.02 LSA
Above 30,000’ – 1.02 LSA

Flaps not 0: 1.2 Vs

Question 12

Autothrottle Disengagement

Answer 12

AT disengages when:

• Touchdown
• Thrust reverse during RTO
• TLA > TOGA
• Difference in TLA > 8 degrees
• AT failure