Systems DA 20 Flashcards
Tell me about the batteries
2 Lead acid batteries located in the rear compartment. Connected in parallel. Battery range 24 to 26 volts, 34/40 amp/hr. Connected by quick connectors. Connected to the main battery bus.
How many generators are there? Describe them.
2 generators. Rated at 300 amps at 28.5 volts. Located on the accessory drive of the engine.
Ground power supply system
Located on the lower right side of the aft fuselage. 3 pin connector. GPU power at 28.5 volts at 1,000 amps. Can’t charge the batteries.
What does the red “CABIN” warning light mean?
Cabin pressure is above 8.7 psi or above 10,000’
What does the red “DOOR” warning light mean?
Main cabin door or the rear compartment door is not locked.
Either red “PITOT 1 or 2” light?
Pitot probe heating system is off or failed.
What does the red “DC GEN 1 or 2” annunciator mean?
The DC generator is not supplying power to the main bus.
What does the red “BATTERY” light mean?
At least 1 battery is not connected to the main bus. Battery relays are open.
What does the red “PARK BR” mean?
Parking brake pressure is too low. System pressure is less than 1,200 psi.
What does the red “HYDR 1 or 2” light mean?
Respective main hydraulic pump pressure is too low. Pressure switch is reading the pressure less than 2,150 psi.
What does the red “OIL PR 1 or 2” mean?
Oil pressure is less than 5 psi.
What does the red “FUEL PR 1 or 2” mean?
Engine fuel feeder line pressure is too low. Pressure is less than 8.7 psi.
What does the red “XFER 1 or 2” mean?
Associated transfer fuel pressure drops below 4 psi.
What does the orange “YAW OFF” mean?
Yaw damper is disengaged. Automatic disengagement takes place when the yaw damper deflection exceeds 4º or there is a loss of AC power
What does the red “YAW FAIL” light mean?
Yaw damper has failed with the engagement button in. Automatic failure occurs when yaw damper deflection exceeds 1 1/2º for more than 10 seconds.
What does the red “A/G ROLL or PITCH” mean?
Arthur Q unit position does not agree with the high- or low-speed modes of flight. High-speed disagreement interrogation takes place at approximately 265 kts. Low-speed disagreement takes place whenever the right DLE is extended.
What does the red “GUST DAMP” light mean?
No 1 hydraulic pressure drops in the rudder system and the gust damper valve is closed (damping position).
What does the red “BAGGAGE FIRE” light mean?
Smoke or fire in the baggage compartment.
What does the red horizontal trim indicator light mean?
Horizontal stabilizer trim is set at a nose-high position. Accompanied by a warning horn if the throttle is advanced above 85% while on the ground.
What does the anti-icing lights mean?
2 red lights (L or R) illuminate if the whiny, nacelle, or engine anti-icing valves position differ from that selected. Momentary illumination while the valves are in transit.
3 green lights - illuminate when the temperature of the surface selected has reached the operating temperature.
What does the inverter failure lights mean?
2 red lights (L or R) mean that AC buses are not powered with 115 VAC.
How long is this airplane?
56.3’
How wide is this airplane?
53.6’
How tall is this airplane?
17.6’
What does the RED labeled CB mean?
Load shed item
What does the WHITE labeled CB mean?
Non-load shed item
How many inverters do we have and what type are they?
Solid state - 3 of them.
Where is the hydraulic system tanks located?
Rear compartment
Does this aircraft have split flap protection?
NO
What does the pneumatic system operate?
- Air conditioning
- Cabin pressurization
- Fuel tank pressurization
- Hydraulic tank pressurization
- Powerplant anti-icing
- Airframe Anti-icing
- Fuel heaters
- Fuel control unit
What is the limitation on the use of AVGAS?
- No more than 25 hrs of operation before overhaul.
- Above a 50% mix, max allowable operating altitude is 20,000’.
- Select the lowest octane fuel available and adjust the fuel density controller per the chart in the AOM.
What does the #1 inverter operate?
- Non load shed
- Powers the pilot’s AC BUS
What does the #2 inverter operate?
- Load shed
- Powers the Co-pilot’s AC BUS
What does the standby inverter operate?
- Non load shed
- Can power either AC BUS
- Unless you are load shedding, then it can only power the Pilot’s AC BUS
Where does the pneumatic system get its air from?
8th stage bleed air from each engine
Aircraft with big feeders have a total fuel capacity of?
8900# total
1500# feeder tank
7400# wing tank
Aircraft with small feeders have a total fuel capacity of?
8300# total
900# feeder tank
7400# wing tank
How many inverters are there and describe them?
3 total - No. 1, No. 2, and standby - All are solid state
Deliver AC power to the AC buses @ 115-V, 400 Hz, 3 phase.
How many fire detection loops are located in each area?
Engine - 2
Wheel well - 1
Rear compartment - 1
Describe the fire bottles?
2 are on board.
Each one contains Freon 12B @ .3 Gal.
Pressurized to ~207 psi
Describe the hydraulic #1 system?
Mounted on the left engine accessory drive.
Provides 3,000 psi
Reservoir is pressurized to 21 psi from 8th stage bleed air.
Holds ~ 4 gallons.
Describe the hydraulic #2 system?
Mounted on the right engine accessory drive.
Provides 3,000 psi
Reservoir is pressurized to 21 psi from 8th stage bleed air.
Holds ~ 4 gallons.
Describe the standby hydraulic system?
electrohydraulic pump located on the right side of the rear compartment. Electric power from the Main bus.
Uses hydraulic fluid from the reserve section of the No. 1 and No. 2 reservoirs.
What items are powered by the #1 hydraulic system?
- L and R aileron servos
- Elevator servo
- Rudder servo
- Nosewheel steering *
- DLE*
- Trailing edge flaps
- Normal landing gear doors
- Normal landing gear
- Normal brakes and anti-skid
- Airbrakes*
- Transfer jack charge*
* - Only on system #1
What items are powered by the #2 hydraulic system?
1.L and R aileron servos
2. Elevator servo
3. Rudder servo
4. Yaw damper*
5. Aileron Q unit
6. Elevator Q unit
7. Parking brake system
8. Transfer jack motive pressure
* - Only on sytstem #2
What are the 9 items on the landing gear system?
Nose gear -
1. Steering
2. Anti-skid
3. Landing gear selector safety pin (engages)
Left main -
1. Landing gear selector safety pin (disengage)
2. Stabilizer trim warning
3. Cockpit side window heat
Right main -
1. Stall warning
2. Cabin pressurization (dump valve)
3. Conditioning valve
What items are hot anytime the main batteries are connected?
- Fire bottles
- Battery relays
- refuel panel
- door motor
- With the AUX BUS switch on - dome light, rear compartment light
What does the BAT RESET button do?
Resets the battery reverse-current relay (4P). This relay limits the amount of current that is allowed to charge the batteries.
When are you likely to exceed generator amp limitations on the ground?
After starting one engine and attempting to recharge the batteries before starting the second engine
Are our falcons equipped with APUs?
No
Do the generator control switches need to be on to start the engine?
Must be in the on position
Is the generator control switch capable of turning off on it’s own?
Yes - There are trip switches that will automatically turn off if a differential or over-voltage fault occurs, or if the generator fails.
After starting with the GPU, when will the generators be connected to the main DC bus?
DC power switch to FLIGHT NORMAL
GPU must be disconnected from the GPU receptacle
What is the purpose of load shedding?
To conserve battery power or electrically isolate the auxiliary buses
When does load shedding occur?
When you move the AUXILIARY BUS switch to OFF and automatically whenever DC power selector switch is not in the FLIGHT NORMal position.
What is the air source for the air conditioning system?
8th stage bleed air from the engines
Describe the operation of the conditioning valve in the AUTO position
On the ground - valve is closed
In the air - valve is open
Approximately 2 minutes to open or close the valve when in the AUTO position
Describe the operation of the conditioning valve in the OPEN or CLOSED positions
The valve will rapidly move to the selected position regardless of the position of the squat switch
How is bleed air cooled prior to entering the cabin?
Hot bleed air is cooled in heat exchangers and by expansion in the air cycle machine
What is the function of the air cycle machine?
It induces airflow through the heat exchangers
What is the function of the temperature control valve?
Directs hot bleed air to the cold air distribution system or directly into the cabin
How is the temperature of the cabin air controlled?
Rotary temperature controller
What is the function of the upper half of the temperature controller?
Controls positioning of the temperature control valve based on the one or two temperature probes
What is the function of the lower half of the temperature controller?
Manually controls positioning of the temperature control valve hotter or colder depending on which side of the controller
How can you manually change the position of the temperature control valve?
There is a mechanical override in the emergency controls
What is the function of the Ram air scoop?
Circulates outside air through the cabin and cockpit
Where is the ram air scoop located?
on the bottom of the aft fuselage
When will the ram air scoop depoly?
RAM AIR CLOSE switch is not in the CLOSE position. Rear compartment fire extinguishing switch is in the discharge position
What is the air source for the foot warmer and windshield defog?
Hot bleed air from the air conditioning system
What is the effect of placing the STATIC SELECTOR on the pilot side to the EMERGENCY position
The pilot side Mach air speed, altimeter, and vertical speed indicators will be connected to an alternate static source in the rear compartment.
What systems use the utility static port?
- Mach overspeed warning system
- Autopilot altitude control
- Cabin overpressure warning
- Cabin differential pressure switch
- Autopilot airspeed switch
- Arthur Q units
Does the STATIC SELECTOR have any effect on the operation of the utility static port?
No
On the copilots side, there is a knob labeled “PITOT SHUT-OFF VALVE. What is the difference between the PANEL AND ACCESSORIES and the PANEL ONLY positions of this knob?
This directs where pitot pressure from the copilots side pitot tube is directed -
PANEL ONLY - Copilot’s Mach-airspeed indicator
PANEL AND ACCESSORIES - Copilots Mach-airspeed indicator
EPR transducers
Arthur Q units
Autopilot airspeed switch
Mach overspeed warning system
What systems are affected by placing the PITOT SHUT-OFF VALVE in PANEL ONLY?
Copilot’s mach airspeed indicator
EPR transducers
Arthur Q units
Autopilot airspeed switch
Mach overspeed warning system
Where are the fire detection loops located in the Falcon?
Zone 1 L & R engine
Fuel heater
Rear compartment
Landing gear well - L & R
If the detection loop cools off after being activated, will it reset?
Yes
How many fire bottles are installed in the Falcon?
2
What areas are protected by fire bottles?
Both engines and fuel heaters
Rear Compartment
Is there any fire protection for the wheel wells?
No
If one bottle is insufficient to extinguish a fire in an engine, can the second bottle be used in the same engine?
Yes
Can more than one fire extinguisher be used in the rear compartment?
Both bottles fire simultaneously into the rear compartment
How can you tell if a fire bottle has been discharged?
- Plastic discharge indicator will be cracked or missing.
- Pressure reading on the bottle will be 0 or pin will be extended.
- Missing safety wire on a fire panel switch.
The red band on the pin at the top of a fire bottle is showing, what does this mean?
The pressure in the fire bottle <100 psi
Are there any fire suppression systems on the falcon other than the fire bottles?
Hand held fire extinguishers
What power sources are available to move the primary flight controls?
Hydraulic pressure from system No. 1
Hydraulic pressure from system No. 2
Human power from the control inputs
In the event of a total hydraulic failure will you still have control over the primary flight control surfaces?
Yes, they will be controlled manually through the control linkages which should allow the aircraft to be flown up to 200 KIAS without hydraulic power.
In the event a flight control linkage breaks, what will happen to that flight control surface?
A torsion bar will return the flight control to the neutral position
What is the function of the Artificial Feel System?
It simulates the feel of an aerodynamic load on the controls.
What is the function of the Arthur Q units?
They vary the power of the artificial feel system in response to changes in airspeed. This simulates the increasing aerodynamic load on the controls as airspeed increases.
What powers the Arthur Q units?
Hydraulic system #2
What happens to the Arthur Q units if you loose hydraulic system #2?
The units will fail in the low speed mode.
Which controls are affected by the Arthur Q units?
The ailerons and the elevator
How do the Arthur Q units sense speed?
Static pressure from the utility ports on both sides of the aircraft . Pitot pressure from the copilots pitot tube.
What is the function of the rudder gust damper?
It prevents rudder damage from wind gusts when the airplane is on the ground and both hydraulic systems are off.
How do you turn the rudder gust damper on or off?
It is activated whenever hydraulic system #1 looses pressure and deactivated whenever hydraulic system #1 becomes pressurized.
If you loose pressure to hydraulic system #1 in flight, will the gust damper come on?
Yes, however the hydraulic servoactuator powered by the hydraulic system #2 will overpower the gust damper.
How do the trim systems work on the ailerons and rudder?
Trim input causes an actuator to displace the input lever on the servo actuator causing the control surface to reposition.
How does the trim system work for pitch?
Trim input causes an electric motor to raise or lower the horizontal stabilizer. A second motor is used for emergency trim.
When using the emergency trim system, why must you pay special attention to the trim limits?
Because the emergency trim system is not limited by the normal (electrical) trim limit stops. The emergency trim system could damage the system from continuing to run after the trim reaches the mechanical stops.
How many flap position indicators are there?
2 pointers on the flap position indicator, one for the left side and one for the right side. A green flap indicator light also illuminates whenever the flaps are >0°
What protects against split flap?
Nothing
What powers the flaps?
Hydraulically actuated by hydraulic system #1. Electrically controlled by 28.5 VDC load-shed.
What does the EMERG FLAPS button do?
It directs transfer jack pressure to the flap actuators.
What methods can be used to lower the flaps?
Normal operation
Operation with the standby pump
Emergency operation with the transfer jack
Emergency manual operation with the crank handle
Using the emergency manual flap extension, how far should the flaps be extended?
No more than 25° in case a go around were required.
How do you lower the DLEs?
When the FLAPS handle is moved from the 0° position, the DLEs will extend.
How do you retract the DLEs?
When the FLAPS handle is moved to the 0° position, the flaps will retract and then the DLEs will retract.
What powers the DLEs?
Hydraulically actuated by hydraulic system #1. Electronically controlled by 28.5 VDC load-shed.
What prevents damage to the airbrakes at high speed?
A 3,500 psi blowdown relief valve permits the airbrakes to extend until this pressure is reached. At low speeds, they will fully extend to 70°, but at high speeds, they will only extend until reaching the pressure limit of the blowdown relief valve.
What powers the airbrakes?
Hydraulically actuated by hydraulic system #1. Electronically controlled by 28.5 VDC load-shed.
What is the purpose of the jet pumps in the wing fuel tanks?
- one in each wing transfers fuel from outboard to inboard.
- one in each wing transfers fuel to the opposite wing tank.
How is fuel transferred from the wing tanks to the feeder tanks?
Electric transfer pumps. Pressure differential from 8th stage bleed air.
How many jet pumps are located in the wing tanks?
4 - 2 in each wing
What powers the jet pumps?
fuel from the transfer pumps provides motive flow.
What powers the transfer pumps?
28.5 VDC from the AUX BUS
Are the transfer pumps load shed?
Yes