FLAPS/SLATS

Question 1

How many Slat Flap Control Computers (SFCCs) are there?

Answer 1

2

Question 2

How many channels does every SFCC have?

Answer 2

1 flap channel and 1 slat channel

Question 3

What happens if both channels of a SFCC fail?

Answer 3

SFCC is indicated INOP/FAIL

Slats and flaps operate 1/2 speed via the other SFCC

Question 4

What causes a wing tip brake to activate?

How do you reset it?

Answer 4

1. Asymmetry
2. Mechanism overspeed
3. Symmetrical runaway
4. Un-commanded movement of the surfaces

Reset can only be done on the ground

Question 5

Do Slats and Flaps have different Wing Tip Brakes?

Answer 5

Yes

Question 6

How does automatic flap retraction work?

Answer 6

If config = 1 + F, at 210 knots the flaps retract and the slats stay out

Slats must be manually retracted

Question 7

Is there any automatic slat retraction?

Answer 7

No

Question 8

What does A-LOCK (blue) indication on the E/WD signify?

Answer 8

AoA is > 8.5 degrees, speed

Question 9

What is the difference between a blue or green indication on the flap travel indicator?

Answer 9

Blue: is selected but not in the deployed position
Green: selected and in demanded position