Landing Gear, Brakes, Steering

Question 1

What does a NWS LIMIT EXCEEDED(C) CAS indicate, and what action should be taken?

Answer 1

Nosewheel has been turned beyond 120 degrees.

Check shear pins. If broken then the nose wheel has exceeded 123 degrees and possible damage has occurred.

Question 2

How much steering authority is available with the tiller? Rudder pedals?

Answer 2

65 degrees tiller

7 degrees rudder pedals

Question 3

The nose gear steering is actuated by which Hydraulic system?

Answer 3

Left

Question 4

What centers the nose gear during retraction?
(2)

Answer 4

• Electrically by the Steering Control Unit (SCU)

- Mechanically by cams on the top of the nose strut

Question 5

Antiskid is available down to what speed?

Answer 5

10 knots

Question 6

Why must we observe brake cooling times?

Answer 6

To ensure there is sufficient brake energy available to come to a complete stop within the charted distance if we reject a takeoff

Question 7

The landing gear is normally actuated by which hydraulic system?

Answer 7

Left Hydraulic System

Question 8

Gear is held up by what?

Answer 8

Mechanical uplocks

Question 9

What do the brake accumulators provide us when loss of R and L hydraulic pressure?

(Total hydraulic loss)

Answer 9

1 continuous application to a complete stop.

WITH ANTI-SKID

Question 10

Parking brake accumulator has sufficient pressure for how many applications?

Answer 10

6

Question 11

If a gear control or left hyd system failure occurs, how do we get the gear extended?

Answer 11

Alternate method through the checklist - pull the manual release handle -“LG PULL”

Question 12

What does the “LG PULL” handle do?

Answer 12

• Manually releases the uplocks(Nose and Main Gear)

* Actuates the dump valves(ports fluid pressure to the return side of actuator)

Question 13

When should the “LG PULL” handle be stowed?

Answer 13

After landing and the gear pins installed.

Question 14

What also assists the main gear to be fully extended(down and locked)?

Answer 14

Main landing gear down lock assist accumulator

Question 15

Where do we read the main gear down lock assist accumulator pressure?

Answer 15

Gauge is located in the battery compartment (Purple band)

Question 16

How do we check the brake wear indicators?

Answer 16

With the parking brake set and the pins are not flush with the housing

Question 17

Where are the brake accumulator gauges located?

Answer 17

In the battery bay

Question 18

With a NORMAL BRAKES FAIL indication, how will we apply braking to stop the aircraft?

• Will we have anti-skid or differential braking?

Answer 18

By pulling the Emer/Parking brake smoothly.

No.

Question 19

When does the PTU operate in “AUTO” ?
(4)

Answer 19

• Left EDP failed
• Right EDP producing pressure.
• Weight off wheels(WOW in air)
• Gear not in the selected position (ie…gear is down with the handle “UP”)

Question 20

What are tire pressures?

Answer 20

• Nose : 113 PSI , Mains : 154 PSI

Question 21

What prevents the main tires from exploding in an overheat situation?

Answer 21

4 fuse sensitive plugs in each wheel assembly

Question 22

How many brake wear indicator pins are there on each brake assembly?

Answer 22

2 pins on each assembly – 1 on top and 1 underneath

Question 23

What components of the landing gear are monitored by the Proximity Sensing System?

Answer 23

Main landing gear, Nose gear, Nose gear doors.

Question 24

Brakes are armed when?

Answer 24

1. Gear down and

A) WOW for 5 seconds

—or—

B) 50 knot wheel spin up

Question 25

Brake cooling times are found in the?

Answer 25

AFM