CL350 Systems (NICE TO KNOW) Flashcards Preview

Challenger 350 Flashcards rev0419 > CL350 Systems (NICE TO KNOW) > Flashcards

Flashcards in CL350 Systems (NICE TO KNOW) Deck (52)
Loading flashcards...
1

Left hydraulic system

(9 items)

Inboard brakes

Upper rudder PCU

Inboard ground spoilers

Inboard multifunction flight spoilers

Left and right inboard elevator

Left T/R

ALTN Flaps

Landing gear Nose wheel steering

2

Right hydraulic system

(8 items)

Outboard ground spoilers

Outboard brakes

Outboard multifunction flight spoilers

Left and right outboard elevator

Main landing gear assist

Flaps

Lower rudder PCU

Right T/R

3

Ditching switch

(pressurization panel)

(3)

Depressurizes the cabin

Shuts off air conditioning

Closes Outflow valve.

 

*This sequence is only active in the automatic mode and is inhibited above 15000'

4

IASC

Integrated Air System Controllers = Pressurization control

 

Two controllers,

#1 is always primary

#2 takes control automatically when #1 has a fault

Controls primary outflow valve through AUTO drive mechanism (Secondary independent drive mechanism control valve in manual mode)

5

TAKEOFF AND RETURN TO BASE mode

*Automatic pressurization modes*

System maintains take off pressurization of 300' below take off field elevation

--Maintains this altitude until 6000' or 10 minutes

 

*If descent is initiated the cabin descends to take off field elevation and the cabin altitude does not have to be reset.

6

PRE PRESSURIZATION MODE

*Automatic pressurization modes*

Active from time thrust levers go to take off position Achieve cabin pressure of 300' below take off elevation

7

Manual pressurization knob

12 o'clock position Rate is zero 2/3's travel is about 1000 fpm Full deflection is about 2500fpm

8

CLIMB mode

*Automatic pressurization modes*

Automatically controls cabin climb rate according to theoretical schedule of aircraft altitude and cabin altitude taking into account aircraft rate of climb and landing field elevation.

Typical climb rates are 300-500 fpm with max rate of 635 fpm

 

*High rates of climb above 6000 fpm above 25,000' may cause cabin rate of climb to exceed 635 fpm max and should be avoided for cabin comfort.

9

CRUISE MODE

*Automatic pressurization

Active when aircraft rate of climb <500 from for >10s

Aircraft is climbing at any rate with aircraft altitude greater than 25000'

Cabin altitude is set according to predetermined schedule.

10

Depressurization sequence on ground

*Automatic pressurization modes

After landing or aborted takeoff aircraft depressurizes at rate of 500 fpm, then outflow valve drive to fully open. OFV then remains fully open while on the ground.

11

GEAR WARNING Non-mutable

Any gear not down/locked and RADALT < 500' and Left and right thrust levers < 26° Or flaps > or = 27°

12

GEAR WARNING Mutable

When RADALT INOP Gear Warning is mutable.

Gear not down and locked and TLA < 26° and Altitude is <15,000' and one of the following :

Airspeed <170 with flaps <3°,

Airspeed <160 with flaps <13°'

Airspeed <155 with flaps >13°

13

Brake system ground mode

Ground mode allows hydraulic pressure to brake actuators.

Activated when gear down and Either WOW active for >5 sec or Wheel spin up above 50 KTS

14

Brake Control Unit - BCU

Provides anti-skid protection down to 10 KTS

Commands braking pressure of 350 psi for 4 seconds after gear retraction

 

Removes hydraulic pressure from brakes when:

Both WOW(off), and gear up and locked, and wheel speed zero.

15

Nose Wheel Steering

(5)

Active when: Left hydraulic system pressurized

Nose Gear down and locked

WOW

NWS selected ON

No faults noted by SCU (steering control unit)

16

PSEU

Proximity Sensing Electronic Unit =Gear retraction and extension control

17

Gust lock

Locks ailerons only

These are the only non-hydraulic flight control

18

MDC Maintenance Diagnostic Computer

Can display data on top half of right MFD by simultaneously pressing  A/ICE, ECS, and FUEL on the MFD Control panel

19

ENG accessory Gearbox items

(6)

Air turbine starter

GEN

FUEL pump

Oil pump

Reservoir HYD PUMP

PMA

20

APR ARMED

Armed for takeoff when thrust levers at T/O detent, engaged when lever set at APR (beyond takeoff position)

 

Also armed for go around when flaps >20° OR flaps and gear down.

Automatically engages with engine split of >15% N2 Can be manually turned off on engine panel

21

AIR TURBINE STARTER Disengage

N2 46.2%

22

When do the HYD SHUTOFF VLV's close

Fire switch depressed

Shut off valve closed

 

Fluid temp above 135°C (skydrol boiling point)

23

What is the power source for the HYD DCMP's

Left DMCP = RIGHT MAIN BUS

Right DCMP = LEFT ESSENTIAL BUS

24

What is the primary purpose of the PTU?

When does it run?

To aid in gear retraction.

Comes on when gear is being retracted and left EDP pressure is low.

25

What does the AUX HYD system power?

Assists the lower rudder PCU

26

How are gear up locks released?

When extension commanded, gear initially over stows the gear, releasing the mechanical up locks.

This allows mechanical up lock hook to be retracted for extension.

27

The GEN overload message comes on at what load?

501 AMPS

28

What inputs arm the GROUND SPOILERS in AUTO mode

(4)

Inputs come from :

RADALT

Wheel Speed

WOW

TLA

29

When do GROUND SPOILERS extend in MANUAL ARM

Thrust Levers Idle and WOW only

*Manual Arm mode does not provide additional input protection available in AUTO.

30

ALTN FLAPS

When selected, left HYD system pressure powers flaps.

Flow restricted

(to prioritize gear actuation)

 

Takes over 1 min to extend flaps from 0°-20°

Normal flaps (R) HYD system = O°-30° is 20 seconds