Automatic Flight & Landing Gear and Brakes

Question 1

Automatic Flight Control System (AFCS) components

Answer 1

1 Flight Guidance Control Panel (FGCP)
2 Flight Guidance Modules (FGM 1, FGM 2)
1 Yaw Damper Actuator Unit (YDAU)
2 Autopilot Actuator Units

Question 2

Describe the job of the Flight Guidance Modules (FGM 1, FGM2).

Answer 2

provides data processing for:

FD commands, AP and YD actuator commands, pitch trim system commands

Question 3

How many FGMs are required for AP, YD, and FD functions?

Answer 3

Both are required to perform AP and YD functions, one is required for FD

Question 4

What happens when you push the GA pushbutton?

Answer 4

AP disengages, FD commands 10 degree pitch, FD commands wings level, all “armed” FD modes are disarmed

Question 5

AP engagement is inhibited when?

Answer 5

YD fail, roll exceeds 45 degrees, pitch exceeds 20 degrees

Question 6

What ways can the AP be disengaged?

Answer 6

AP DIS button on yoke, Go-around buttons, operating electric pitch trim, AP pushbutton on FDCP, YD pushbutton on FDCP

Question 7

The AP Pitch Trim functions at what two speeds?

Answer 7

high speed for CAS below 180 kts

low speed for CAS above 180 kts

Question 8

What monitors and controls the operation of the landing gear components?

Answer 8

Proximity Sensor Electronics Unit (PSEU)

Question 9

Which direction do the landing gear extend and retract?

Answer 9

nose gear - extends aft

main gear - extends forward

Question 10

How many gear pin locations are there?

Answer 10

5 plus 1 nose wheel lock on nose

Question 11

When does the gear warning horn activate?

Answer 11

the gear is not down AND
flaps are greater than 8.5 degrees with either engine torque indicating less than 50% and both power levers positioned aft of the RATING detent OR
airspeed is less than 156 KIAS with both power levers near the FLIGHT IDLE detent

Question 12

LDG GEAR INOP caution light

Answer 12

failure of a hydraulic sequencing valve on any of the gear doors

Question 13

The Alternate Landing Gear Extension system provides a manual means of extending the landing gear when any of the following malfunction occur:

Answer 13

the LDG GEAR INOP caution light illuminates OR
the landing gear indication fails OR
there is a loss of #2 hydraulic system fluid

Question 14

landing gear extension INHIBIT switch

Answer 14

disables the electrical command sent to the landing gear solenoid valve when the landing gear select handle is moved

Question 15

LANDING GEAR ALTERNATE RELEASE door

Answer 15

opening this door mechanically operates (opens) a bypass valve relieving #2 hydraulic pressure form the landing gear uplocks

Question 16

LANDING GEAR ALTERNATE EXTENSION door

Answer 16

gives access to alternate extension hand pump and downlock verification system; opening door mechanically operates (opens) the MLG alternate selector valve which is necessary for pump operation

Question 17

When is the anti-skid system operational?

Answer 17

main gear wheel speeds exceeds 10 kts

reactivates with WOW signal and senses main wheel speed of 35 kts or five seconds after WOW signal

Question 18

ANTI SKID TEST

Answer 18

INBD ANTISKID and OTBD ANTISKID caution lights illuminate for six seconds on the ground or three seconds in the air (with gear down and locked)

Question 19

How many brake applications will a fully charged emergency brake accumulator provide?

Answer 19

up to six

Question 20

Minimum indicated parking brake accumulator pressure for engine start

Answer 20

right engine - 500 psi

left engine - 1000 psi

Question 21

Nosewheel steering radius

Answer 21

rudder pedals - 8 degrees
tiller - 70 degrees
free castor - 120 degrees

Question 22

NOSE STEERING caution light

Answer 22

nosewheel steering ECU malfunction or nosewheel castered beyond 70 degrees

Question 23

What does the gauge in the right wing root indicate?

Answer 23

Emergency brake accumulator pressure