Landing gear and brakes

Question 1

What conditions are necessary for the green towing light to Illuminate for the nose gear?

Answer 1

Emergency brake off
brake pressure off
steer off on EICAS

Question 2

How do you disconnect nosewheel steering?

Answer 2

button behind the control wheel
or red switch on the nose for ground crew

Question 3

what conditions are necessary for safe pushback?

Answer 3

GREEN towbar light
STEER OFF on EICAS
parking brake off

Question 4

What system powers Nosewheel steering?

Answer 4

HYD 2

Question 5

What system powers the landing gear retract/extend?

Answer 5

HYD 2

Question 6

How do you engage nosewheel steering?

Answer 6

Tiller (steering handle) must be pressed down

Question 7

When do you use handwheel steering?

Answer 7

low speed taxi

Question 8

Is there protection for the nosewheel steering?

Answer 8

yes, as speed increases the steering limit decreases

Question 9

What disengages rudder steering?

Answer 9

activation of nosewheel steering

Question 10

The main landing gear is held in the up position by?

Answer 10

Mechanical uplocks

Question 11

Turn Radius for E170?

Answer 11

54’8

Question 12

Turn Radius for E175

Answer 12

59’2

Question 13

What determines min turn radius for the standard wingtips?

Answer 13

Horizontal stabilizer tip

Question 14

What determines min turn radius for the extended wingtips?

Answer 14

Wingtips

Question 15

What keeps the landing gear down and locked?

Answer 15

Downlock springs

Question 16

When would the landing gear aural warnings come on?

Answer 16

-When flaps are set 1-4 and below 700 ft with power lever reduced gear not down
-flaps 5 or FULL landing gear not down

Question 17

If one of the landing gear lights on EICAS are RED, what does that mean?

Answer 17

Disagreement between gear position and handle position

Question 18

What color are gear Indications on EICAS during transition?

Answer 18

Amber Boxes chevron

Question 19

How is landing gear operated?

Answer 19

Electrically commanded, Hydraulically activated

Question 20

What are 3 landing gear extension modes?

Answer 20

Normal, Electrically overide, Alternate gear extension

Question 21

Describe normal gear extension

Answer 21

Lever positioned to Down, releases hydraulic pressure from uplocks and retraction actuators

Question 22

Describe Alternate gear extention

Answer 22

Pulling out on the lever manually disconnects the landing gear uplock and releases hydraulic pressure

Question 23

If you’ve just manually extended the gear using Alternate gear extension, why might the Landing gear position still show RED?

Answer 23

check gear lever position (must be down)
gear free falls and you might need to yaw the aircraft back and forth to set the downlock springs

Question 24

When Might you use Alternate gear extension?

Answer 24

If the electrical system fails or malfunctions, or hydraulic pressure not available.

Question 25

When would electrical override be used for gear extension?

Answer 25

If the control box or Proximity Sensor electronics module fails

Question 26

What is the PSEM?

Answer 26

PROXIMITY SENSOR ELECTRONICS MODULE (FCM for the landing gear)

Question 27

What is the purpose of the LG WRN INHIB?

Answer 27

to inhibit landing gear warnings in the event of dual radio altimeter fail.

Question 28

Can the LG WRN INHIB Button be pressed to stop unwanted landing gear warnings?

Answer 28

ONLY if dual radio altimeter failure.

Question 29

What is another purpose of the parking Brake?

Answer 29

can be used as an emergency brake. or accumulator pressure in event of hyd failure.

Question 30

What is the purpose of the Red DN LOCK RLS button next to landing gear?

Answer 30

manually releases the landing gear lever lock if gear wont release on takeoff.

Question 31

After takeoff if the landing gear lever wont move to up position, what might you try?

Answer 31

push the DN LOCK RLS button.

Question 32

What Hyd systems power the brakes?

Answer 32

1 & 2

Question 33

Hyd system 2 powers the outboard brakes? T/F

Answer 33

FALSE

Question 34

HYD System 1 powers the outboard brakes? T/F

Answer 34

TRUE

Question 35

How is antiskid turned off?

Answer 35

Pilot unable to turn off...

Question 36

The Landing and RTO autobrake will be commanded off for the following:

Answer 36

-switch is OFF -any brake pressure is applied on feet -power lever advanced

Question 37

can parking brake be used to stop the aircraft if there is a hydraulic failure?

Answer 37

YES

Question 38

How many Full applications on parking brake if hyd pressure fail?

Answer 38

6

Question 39

How can you still have hydraulic pressure for parking brake in event of hydraulic fail?

Answer 39

Brake accumulators

Question 40

What conditions must be met for autobrake to function for RTO?

Answer 40

power lever IDLE/REV wheel speed greater than 60kt brakes not applied by feet

Question 41

There is anti-lock brake protection while using parking brake? T/F

Answer 41

false

Question 42

When is Anti skid deactivated?

Answer 42

Below 10KTS

Question 43

how are brakes commanded?

Answer 43

Brake by wire