Landing Gear

Question 1

What is the meaning of the triangle indications on the ECAM WHEEL page?

Answer 1

▪ Indicates the position and condition of the landing gear as independently detected by each LGCIU.
▪ The forward set represents the status of the gear as detected by the active LGCIU.
▪ The rear set represents the status of the gear as detected by the standby LGCIU.

Question 2

What 3 indications aid a pilot in determining the landing gear is detected down and locked?

Answer 2

▪ Forward set of triangles on the ECAM WHEEL page appear in green. ▪ Three green triangles appear on the landing gear indicator panel.
▪ LDG GEAR DN appears on the E/WD memo section.

Question 3

What is the meaning of a red UNLK lights on the LDG GEAR panel?

Answer 3

❇️Indicates that a specific gear is not being detected as being locked in the selected position.

Question 4

What is indicated by the illumination of the red arrow on the Landing Gear Selector Lever panel?

Answer 4

▪ The aircraft is in the landing configuration. (Below 750ft AGL) and
▪ The landing gear is not down and locked.

Question 5

Recall the operation of GRAVITY GEAR EXTN hand crank.

Answer 5

▪ Lift into position, breaking the securing safety wire.

▪ Rotate clockwise three (3) turns to the mechanical stop.

Question 6

How is the Brake and Steering Control Unit (BSCU) is activated?

Answer 6

❇️The BSCU is activated by placing the A/SKID & N/W STRG switch to the ON position.

Question 7

What is indicated by the NW STRG DISC display on the E/WD memo section?

Answer 7

▪ Nose wheel steering from the flight deck is inhibited because the tow control lever on the nose gear strut has been placed in the TOW position and:

• Appears in green when both engines are shutdown.
• Appears in amber when at least one engine is running.

NOTE: NW STRG DISC is not displayed when the A/SKID & N/W STRG switch is placed to OFF.

Question 8

Which hydraulic system provides pressure for normal Anti-Skid braking?

Answer 8

▪ Normal brakes with antiskid (Green hydraulic pressure).

Question 9

Which hydraulic system provides pressure for alternate Anti-Skid braking?

Answer 9

❇️Alternate brakes with antiskid (Yellow hydraulic pressure).

Question 10

In the event of total BSCU failure or failure of both Green and Yellow hydraulic systems, Alternate brakes without antiskid is available, powered by what hydraulic means?

Answer 10

❇️Yellow system accumulator

Question 11

What is the meaning of the Release indicators on the ECAM WHEEL page?

Answer 11

❇️Horizontal green lines appear:
▪ Temporarily when the landing gear is lowered to indicate that the individual wheel brake is released and antiskid is armed.
▪ Reappear after touchdown along with the REL display when anti-skid is active.

Question 12

A GREEN arc appears on the ECAM WHEEL page over the wheel with hottest brake temperature over ________ºC.

Answer 12

100 ºC

Question 13

An AMBER arc appears on the ECAM WHEEL page over the wheel with hottest brake temperature over ________ºC.

Answer 13

300 ºC

Question 14

What is the minimum ground speed required for Autobrake activation?

Answer 14

▪ Minimum ground speed of 72kts is required.

Question 15

What happens during landing with the Autobrake pb selection of LO?

Answer 15

▪ LO – Commands progressive brake pressure application 4 seconds after ground spoiler deployment signal has been generated.

Question 16

What happens during landing with the Autobrake pb selection of MED?

Answer 16

▪ MED – Commands progressive brake pressure application 2 seconds after ground spoiler deployment signal has been generated.

Question 17

What is the function of the MAX Autobrake pb selection and when is it used?

Answer 17

▪ MAX – Commands progressive brake pressure to be immediately applied when ground the ground spoiler deployment signal is generated. ❇️MAX selection is only authorized for takeoff.