Flight controls

Question 1

What are the Primary Flight Control Systems modes

(FCOM 9.20.5)

Answer 1

Normal, Secondary, Direct

Question 2

What flight envelope protections are provided by the PFC’s in the Normal mode?

(FCOM 9.20.6)

Answer 2

• Stall protection
• Overspeed protection
• Bank angle protection

Question 3

The stabilizer is powered by which hydraulic system?

Answer 3

Center and Right.

Question 4

What protections does the NORM position of the STAB Cutout Switches provide?

(FCOM 9.20.11)

Answer 4

Uncommanded Stab motion

Question 5

Wheel to rudder cross-tie is available in the normal mode when?

(FCOM 9.20.15)

Answer 5

Inflight below 210kts.

Question 6

During takeoff, at what speed does the rudder become aerodynamically effective?

(FCOM 9.20.3)

Answer 6

60 kts.

Question 7

When will the thrust asymmetry compensation system automatically add rudder?

(FCOM 9.20.14)

Answer 7

Thrust differs by more than 10% on engines in Normal mode.

Question 8

In which primary flight control modes is thrust asymmetry compensation available?

(FCOM 9.20.14)

Answer 8

Normal only.

Question 9

In the alternate mode, flap and slat extension is sequence how?

(FCOM 9.20.18)

Answer 9

• Slats and flaps extend together
• Flaps extend to 20 degrees
• Slats to mid positon
• Slat retraction is inhibited until flaps are up

Question 10

Flap and slat extension from the UP position is inhibited when?

(FCOM 9.20.17)

Answer 10

275 kts or above 20,000’