Landing Gear

Question 1

During preflight, a gear uplock is closed. What do you do?

Answer 1

1. Pin the gear door valve OPEN
2. Turn on ext battery (Left Front access panel)
3. Actuate AUX pump (Right Front access panel) until the gear door and uplocks open
4. Remove gear door pin
5. Actuate AUX pump until gear door closes
6. Turn off ext battery switch

Question 2

If the landing gear fails to extend, what action may reset the extension mode of operation?

Answer 2

a. Verify the Emergency Landing Gear handle is fully down
b. Pressing the DUMP valve switch to provide an alternate electrical path for the gear extension control circuit

Question 3

If the landing gear fails to retract, what action must be performed to prevent landing with 400 lb of applied brake pressure (wheel despin brakes)?

Answer 3

Press and hold the DUMP valve for 3 sec

Question 4

Which “Down and Locked Indication” has precedence over the other?
1. Landing Gear Control Panel
2. Landing Gear Indication on the Flight Control Synoptic

Answer 4

1. Landing Gear Control Panel

Question 5

What is the Emergency Landing Gear Nitrogen Bottle Pressure?

Answer 5

3100 psi

Question 6

Max Airspeed for Emergency Landing Gear Extension?

Answer 6

175 kt (same as 550)

Question 7

What does an illuminated RED GEAR HANDLE light mean during gear retraction?

Answer 7

Landing Gear and/or Doors are NOT retracted (up and locked)

Question 8

What does an illuminated RED GEAR HANDLE light mean during gear extension?

Answer 8

Landing Gear is not down and locked (does not consider door)

Question 9

When will the Landing Gear Warning Horn sound?

Answer 9

1. Anytime flaps are selected > 22° (NOT mutable)
2. Aircraft altitude < 345’ and either power lever positioned to IDLE with flaps < 22° (mutable)

Question 10

Why put the gear handle in the down position with the alternate gear extension procedure?

Answer 10

Proper landing gear indications
Antiskid

Question 11

Max altitude to extend landing gear

Answer 11

20,000’

Question 12

ANTI SKID braking is available from which hydraulic systems?

Answer 12

Left, PTU, AUX

Question 13

Is anti skid protection available when using the PARK/EMER BRAKE?

Answer 13

No

Question 14

What is the minimum Accumulator Pressure to set the parking brake?

Answer 14

1700 psi. Recommended to 3000 psi

Question 15

The Max Brake Pressure when using the PARK/EMER BRAKE or during NO ANTISKID BRAKING is

Answer 15

400 psi

Question 16

What change occurs to the BRAKE PRESSURE display on the BRAKE synoptic when ANTISKID is selected OFF?

Answer 16

The PRESSURE scale changes toa MAX 800 PSI AND and AMBER LINE appears at 400 psi

Question 17

When is TOUCHDOWN and HYDROPLANE Protection Exited?

Answer 17

At 35 kts wheel spin OR “On Ground” for 6 sec

Question 18

The Digital Antiskid Control Unit (DACU) also supplies wheel speed input of 47 kts to which items for operation?

Answer 18

Ground Spoilers and Thrust Reversers

Question 19

Below 18 kt ground speed, Tiller Steering can provide how many degrees of steering?

Answer 19

80 to 82° left and right

Question 20

Rudder Pedal Steering normally provides how many degrees of steering?

Answer 20

7° left and right

Question 21

An Amber WOW fault message displayed during flight is an indication of?

Answer 21

Both Main Gear WOW in GROUND mode

Question 22

What is required of the combined WOW to be in AIR mode?

Answer 22

One Main Gear WOW in Air mode

Question 23

Speed Brake limitations with landing gear extended

Answer 23

Not approved with flaps set 39° OR with landing gear extended in flight

Question 24

Anti Skid Sys Limit - INOP

Answer 24

May be inop provided dry runway, Ground Spoilers operate, 20° flaps used, Cowl and Wing Anti-Ice not used