Flight Controls

Question 1

Aileron trim is normally inhibited during autopilot operation. When is is not inhibited?

Answer 1

RETRIM ROLL R(L) WING DOWN or AILERON MISTRIM messages authorise retrim on the indicated side. The other side is still inhibited.

Question 2

Spoiler cyan triangle indicates:

Answer 2

Associated spoiler not in the retracted position.

Question 3

What is the purpose of the Travel Limitation Unit (TLU)?
At what speed does it automatically engage?
At what speed does it disengage?

Answer 3

Limit pedal travel in order to prevent any damaging rudder travel at high speed?
185kts
180kts

Question 4

What is the purpose of the gust lock?

Answer 4

Mechanically locks and protects pitch and roll flight controls against wind gusts.
Limits PL movement to slightly below FI (prevents a power setting too high for operation in hotel mode).

Question 5

What protects the rudder from wind gusts while on ground?

Answer 5

A hydraulic damper

Question 6

What does a FLAP ASYM message indicate?

Once detected by the MFC what will happen?

Answer 6

Fall asymmetry of 6.7 deg.
The electrical supply to the flaps control system is isolated and:
The flaps stay. In their present position
The control lever has no effect.

Question 7

When does the flap indicator turn green?

Answer 7

When the difference between flap command (lever) and position is <1 deg.
(Indication is white at flaps 0)

Question 8

What does it mean if the flap indication remains cyan once they have reached the commanded position?

Answer 8

A hydraulic leak in the flap valve block.

Question 9

What does a red flap indication mean?

Answer 9

FLAP UNLK. A spurious flap retraction of more than 4 deg.