Merged This Into "Systems" Deck Flashcards
Learn operationally relevant systems information
Left hydraulic system
(9 items)
Upper rudder PCU
Inboard elevators
Inboard multifunction flight spoilers
Inboard ground spoilers
ALTN Flaps
Gear
Nose wheel steering
Left T/R
Inboard brakes
Right hydraulic system
(9 items)
Lower rudder PCU
Outboard elevators
Outboard multifunction flight spoilers
Outboard ground spoilers
Flaps (Normal)
Gear Down assist
PTU
Right T/R
Outboard brakes
Ditching Switch Operation
(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’
IASC
1 IASC is always primary
Integrated Air System Controllers
Pressurization control
Two IASC controllers, 1 Manual control
Controls primary outflow valve through AUTO drive mechanism
(Secondary independent drive mechanism control valve in manual mode)
Prepressurization Mode
*Automatic pressurization mode
Active when thrust levers advanced to take off position
Achieves cabin pressure of 300’ below field elevation
This reduces noticeable cabin pressure change at takeoff
Takeoff and Return To Base Sequence
*Automatic pressurization mode
Maintains 300’ below field elevation until 6000’ AGL 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.
Manual pressurization knob
12 o’clock position Rate is zero
2/3’s travel is about 1000 fpm
Full deflection is about 2500fpm
CLIMB mode
*Automatic pressurization mode
Automatically controls cabin climb rate according to theoretical schedule of cabin altitude versus aircraft altitude
Also takes into account the rate of climb and landing field elevation.
Typical climb rates are 300-500 fpm with max rate of 635 fpm at lighter weight and best climb
*Above 25000, high rates of climb (>6000 fpm) may cause cabin rate of climb to exceed 635 fpm max and should be avoided for auto overpress protection and cabin comfort
CRUISE MODE
*Automatic pressurization mode
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.
Depressurization sequence on ground
*Automatic pressurization mode
After landing or aborted takeoff:
Aircraft depressurizes at rate of 500 fpm
Outflow valve drives to fully open
Outflow valve then remains fully open while on the ground.
GEAR WARNING
Non-mutable
Any gear not down/locked …and
RADALT < 500’ …and
Left and right thrust levers < 26° …Or
flaps > or = 27°
GEAR WARNING
Mutable
Gear not down and locked …and
Radio altimeter invalid …and
TLA < 26°…and
Altitude is <15,000’ …and
Airspeed <170 with flaps <3° …or
Airspeed <160 with flaps <13°’ …or
Airspeed <155 with flaps >13°
*When RADALT INOP Gear Warning is mutable
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
Brake Control Unit - BCU
Provides anti-skid protection down to 10 KTS
Commands braking pressure of 350 psi for 4s after gear retraction
Removes hydraulic pressure from brakes when:
Both WOW(off), and gear up and locked, and wheel speed zero.
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)
PSEU
Proximity Sensing Electronic Unit
Gear retraction and extension control
Gust lock
Locks ailerons only
These are the only non-hydraulic flight control
MDC Maintenance Diagnostic Computer
Can display data on top half of right MFD
Initiate by simultaneously pressing A/ICE, ECS, and FUEL on the MFD Control panel
ENG accessory Gearbox items
(6)
Air turbine starter
GEN
FUEL pump
Oil pump
Reservoir HYD PUMP
PMA
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
AIR TURBINE STARTER Disengage
N2 46.2%
When will HYD SHUTOFF VLV close
(2)
Fire switch depressed
or
Shut off valve closed
Fluid temp above 135°C (skydrol boiling point)
What are the HYD DCMP power sources?
Left DCMP = RIGHT MAIN BUS
Right DCMP = LEFT ESSENTIAL BUS
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
What does the AUX HYD system power?
Assists the lower rudder PCU
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.
Mechanical Right hydraulic gear asssit
The GEN overload message comes on at what load?
501 AMPS
What inputs arm the GROUND SPOILERS in AUTO mode
(4)
Inputs come from :
RADALT
Wheel Speed
WOW
TLA
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.
ALTN FLAPS
When ALTN FLAPS 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
CONFIGURATION TRIM
Stab trim automatically adjusts when gear and flaps are extended to smooth out oscillations
Min Speed to extend FLIGHT SPOILERS
Vapp +8
Vapp = Vref straight in approach (Vref+8)
Vapp = Vref+10 circling approach (Vapp+8)
500’ AGL min usage
How long may windshield heat be used when on essential power?
15 minutes
Oxygen system
5458 liters (Long distance bottles)
Electropneumatic actuating valve (EPAV) controls O2 flow
EPAV has 3 valves :
1 is unregulated air to crew masks
2 is regulated air to pax masks
3 is unregulated air to pax masks (manual select)
Standard Flight Deck Emergency Equipment
Two flashlights
One PBE (portable breathing equipment)
One crash axe
One fire extinguisher
Two life vests
Audio panel to EMER
Bypasses audio panel
Can only transmit and receive on own side radio.
Left pilot on COMM 1, right pilot on COMM 2
Ways to disengage the AUTO Pilot
(6)
Pressing either master disconnect switch
Activating trim switches on control wheels
Pressing AP on FGP
Pressing AP/DISC bar on FGP
Pressing either TOGA switch on TLs
Pressing the YD push button
Additonal ways to disconnect in non-normal ops, ie PITCH and ROLL disconnects
RA INHIBIT Parameters (3)
- Descending below 900’ AGL, or climbing below 1100’ AGL
All RA’s inhibited (TA ONLY) and TA AURAL INHIBITED
- Descending below 1000’ AGL or below 1200’ AGL and climbing
DESCEND RA inhibited
- Below 1450’ AGL
INCREASE DESCENT inhibited
DESCENT MODE
*Automatic pressurization mode
Aircraft descends at preset rate
Varies based on aircraft rate of descent and time remaining to land.
2000 fpm aircraft rate yields 300 fpm cabin rate
5000 fpm and greater descent rate yields cabin descent of 750 fpm
Decent continues to 300’ below landing field elevation.
What is the DCP?
Display Control Panel
Located outboard of FGP
Controls PFD and radio frequencies on MFD
What is the MFD Control Panel
Multi Function Display Control Panel
Controls navigation displays, synoptic, e-checklist, and CAS displays on MFD
Located on center console
What is the FGP?
Flight Guidance Panel
Controls Flight Director and Autopilot
Located on center of glareshield instrument panel
What is the Reversion Switch Panel?
Reversion Switch Panel
Used to switch information between PFD and MFD AND between Pilot and Copilot on center console
In AUTO mode, when will a DCMP run constant?
What is the pressure does each DCMP provide?
Flaps > 0
>2800 PSI
Starter Limitations Engine
3 consecutive attempts, then 15min cooling
30 seconds motor after aborted start
Up to 5 min cranking
3-30-15
Starter Limitations APU
Ground start:
3 start attempts, with 1min cooling intervals then 20min of cooling
followed by 2 start attempts, 1min cooling between then 40min off
Memory Aid: 3-1-20 2-1-40
Air Start: Only one airborne start attempt allowed
ECS Temperature Ranges
Auto Manual
Auto range = 15-35C
(sensors in cabin and cockpit)
Manual range = 3-70C
(sensors in ducting)
When should you disable TAWS Warnings?
GS = BC Approach or GS inop
Flaps = Landing less than flaps 30
Airport not in database
What is lost with Secondary Trim use?
Autopilot
Mach Trim
Configuration Trim
Memory Aid: MAC (Mach)
How are electrical buses powered?
Battery always powers respective Batt Bus
Batt ON powers respective Essential Bus
Generators power respective Main Bus
Aux buses powered by generators thru respective Main bus
With a single generator in flight, what buses are powered?
With single generator on the ground, what buses are powered?
In flight: Operable: Essential, Main, Battery. Single gen sheds Aux buses.
On Ground: Single Gen everything is still powered
With one engine-driven gen in flight and APU operating:
What does APU power?
APU gen will power the Main Bus on the side with the lost gen while in flight with one engine-driven generator on line.
In flight, with no engine-driven gens and only APU:
What is powered?
In flight, APU operating with no engine-driven gens:
APU powers (R) Main , bus ties contactor closes (BTC) and powers (L) Main.
What happens in flight with no generators?
(No APU or Engine Driven Gens online)
With no generators on line, each battery powers respective Batt and Essential busses, and BTC closes.
Battery duration is 1 hour in this situation
