ATP Study Flashcards
What is the total oil tank capacity?
14 US Quarts
What kind of battery is used?
42 amp hour, sealed, lead-acid battery
What does ESIS stand for?
Electronic standby instrument system
What switch can provide emergency cockpit lighting?
Instrument emergency lights on overhead
Where are the instrument emergency lights fed from?
Dual fed bus
What is the capacity of the nacelle tank?
54 gals
What is the capacity of the two leading edge tanks
Interior 40, exterior 13
What is the capacity of the integral tank?
35 gals
What is the capacity of the two box section tanks?
Exterior 25, interior 23
What is the capacity of the aux tanks?
79.5
How many fuel pumps does the aircraft have?
3 - engine drive fuel pump (HP) / primary boost pump (LP) / Electric standby fuel pump (LP)
What items are included on the accessory section of the engine?
Oil scavenge pumps Engine drive fuel pump Primary boost pump Starter generator AC Compressor
What is the wingspan?
57’11”
What is the length?
46’8”
What is the tail height?
14’4”
What are the generators used for?
Starting and DC power generation
How are the generator buses connected to the center bus?
With the left and right bus tie relays
When the generator bus tie is in the open position, what happens?
The left and right bus ties relays and isolate the generator buses from center bus
When the generator bus tie control switch is in the norm position, what happens?
Allows the automatic closure of the left and right bus tie relays when either generator or the external power comes on line
When the generator bus tie control switch is in the man close position, what happens?
During battery operation, both generator bus ties are closed and the generator buses are powered from the battery
How is the electrical system protected from harmful surges by sensing a magnetic field upstream
Hall effect device (HED) open the circuit immediately in the event of a surge
How many HEDs are there?
3
Where are the HEDs located?
Between the battery, R, L and center buses
How is the HED system tested
Through the bus sense test switch on the pilot subpanel
How can you tell which equipment will remain operational after a dual generator failure?
A white circle around the switch
What does the EXT PWR annunciator indicate?
External power is electrically connected and supplying power to the aircraft
If the L/R DC GEN annunciator is illuminated, what does that mean?
The line contactor is open and the generator is offline
What information does the ESIS provide?
Altitude Airspeed Attitude Heading Baro pressure Nav 1
How does fuel move from the auxiliary tanks into the nacelles?
Through motive flow provided by pressure from the engine driven boost pump
How will you know if fuel is not moving from the aux tank into the nacelle?
NO TRANSFER light on the fuel control panel
How can you manually transfer fuel from the aux in the event of a motive flow failure
AUX TRANSFER OVERRIDE switch on the fuel panel
What would happen if the engine driven fuel pump fails?
Immediate flameout
What is the purpose of the engine drive boost pump?
To supply sufficient fuel pressure to the high pressure pump
What are the functions of the electrically driven standby pump?
- Backup in the event of a boost pump failure
- When avgas is used
- Crossfeed operations
What is the indicator of a primary boost pump failure?
FUEL PRES LO indicator
What are the pressure thresholds to cause the FUEL PRES LO indicator?
Pressure decreased below 10 +/- 1 psi
How long can an engine be operated with the fuel pressure annunciator on?
10 hours
What is N1?
Gas generator rpm in percent of speed
What is P3?
Air pressure at station 3; the highest point of pressure in the engine
What helps to prevent a compressor stall from occurring during engine start and at power settings lower than 90% N1
Compressor bleed valve
What would indicate a compressor bleed valve failure?
Slower than normal N1 speed during start
What provides automatic ignition to help prevent engine loss due to combustion failure
Auto ignition system
In the ARM position, when does the auto ignition system come on
When the engine torque falls below 17%
How many fuel nozzles are there
14
How many of the fuel nozzles are primary and secondary?
7 and 7
When is each fuel nozzle manifold used
a. Primary is used during engine start
b. When N1 is between 35-40%, there is enough fuel pressure for the secondary
What is the minimum N1 value for the condition lever to be moved to low idle during start
12%
When the condition lever is moved to low idle, what is the time range for ITT rise
10 seconds
What do the power levers on the pedestal control?
The amount of power the engines are supplying to the propellers, measured as a percentage of the maximum compressor section speed (N1)
What is the minimum N1 value in the beta range?
62%
What is the normal range of the propeller RPM?
1450-1700
At low idle, what is the minimum N1 value?
62%
At high idle, what is the minimum N1 value?
70%
Describe the propellers
a. Full feathering
b. Constant speed
c. Counter-weighted
d. Reversing
e. Variable pitch
How is propeller pitch controlled?
Through governors that use engine oil to adjust blade angle
What happens to the propellers when there is a loss in oil pressure?
A feathering spring will drive the blades to the feather position
What is used to regulate propeller RPM by varying the propeller blade angle?
The primary governor
In the event of a primary governor failure, what prevents propeller speeds in excess of 1768 rpm?
The overspeed governor
What is the fuel topping governor?
In the event of a primary governor failure, the propeller RPM is limited to 106%. The fuel topping governor reduces fuel flow to aid
How is the overspeed governor tested?
PROP GOV TEST switch on pilots subpanel
When the PROP GOV TEST switch is selected to the overspeed position, what is the new governor range?
1500 to 1610 rpm
When are the L/R PROP PITCH annunciators illuminated?
When the propeller pitch is more than 8 degrees below the flight idle pitch stop and the aircraft is on the ground
What system forces the propeller to feather when the engine torque drops below 10%?
Auto feather
How is the autofeather system tested during run up?
a. By using the spring loaded test position of the autofeather switch
b. When switch is moved to test, the 88% N1 switches are disabled and the system now arms at 22%
c. Simulate engine failure by retarding a power lever
When will the AUTOFTHER OFF annunciator be illuminated?
When the gear is down and autofeather is not armed
What must the pilot do before engaging the prop sync?
Manually set the propellers to with 20 rpm of each other
What is a hot start?
a. Indicated by a rapid rise in ITT or ITT exceeding 820
b. Limitation for start is 1000C not to exceed 5 secs
What is a hung start?
Indicated by the lack of engine acceleration following ignition and light off, ITT will not move
What are the components of the engine fire detection system?
a. Gas filled heat sensitive cable
b. Amplifier
c. Annunciator lights
In the event of an engine fire or overtemp conditions, what annunciator will illuminate?
L/R ENGINE FIRE
How is the engine fire system tested?
a. When the eng fire test switches on copilots side are moved to DET:
i. Master warning flashers
ii. ENG FIRE annunciator
iii. Red FIRE annunciation on specific engine display on MFD
b. When the eng fire test switches are moved to EXT position:
i. Corresponding EXTINGUISHER PUSH and DISCHARGED annunciators
Where is bleed air extracted from?
The third stage of the engine compressor
What is the pneumatic system controlled by in the cockpit?
Two bleed air valves on the copilots side subpanel
What systems use pneumatic air?
a. Flight hour meter
b. Window defog
c. Hydraulic reservoir pressure
d. Bleed air warning system
e. Cabin door seal inflation
Can a single engine power all bleed air requirements?
Yes
What systems use the vacuum source?
a. Deice boots
b. Pressurizations
How is the vacuum system created?
By running pneumatic system air through a venture
What do the L/R BLEED FAIL annunciators indicate?
The plastic tubing of the warning system melted and released it’s 18 psi of pressure
When the L/R BLEED FAIL annunciators turn on, what are the actions required?
Turn the corresponding bleed air valve switch to off
What is the normal operating range of the pneumatic pressure gauge?
12 to 20 psi
What is the normal operating range of the vacuum gauge?
a. Narrow arc (35k to 15k) 2.8-4.3
b. Wide arc (15k-SL) 4.3-5.9
How does ice protection for the engine work?
When the pilot selects ENG ANTI-ICE ON, movable vanes are repositioned in the inlet airstream to induce an abrupt turn in the airflow. Heavy moist air is directed out of the cowling
How is the lip of engine inlet heated?
By hot exhaust gases
What should the pilot see when they turn the ENG ANTI-ICE switches on?
L/R ENG ANTI-ICE annunciators within 30 seconds
What happens if the ice vane in the engine anti ice system does not reach it’s required position?
L/R ENG ICE FAIL annunciator illuminates after 30-40 seconds
How is ice prevented on the propeller?
Each propeller has an electrically heated deice boot
Describe operations when the propeller deice is operated in the automatic mode?
a. A timer is used to supply electricity to the right propellers for 90 seconds and then the left for 90 seconds
b. Cycle will continue until switched off
How does the pilot operate the manual propeller deice system?
Pilot must hold up the manual switch for 90 seconds – both propellers are receiving power at the same time
How does a pilot know if the manual propeller deice system is functional?
a. Normally, the prop deice ammeter would show in the auto mode, manual there is no indication
b. Instead, there should be a slight increase in the generator load meters for manual mode
How is ice removed from the leading edge of the wing and horizontal stabilizer?
a. Through rubber deicing boots
i. Pneumatic air inflates the boots
ii. Vacuum pressure is used to deflate and hold boots to the wing edge
What switch operates the leading edge deice boots?
The SURFACE DEICE switch
Describe the surface deice operations when held to the single switch?
Wing deicer boots inflate for 6 seconds and then tail deice boots inflate for 4 seconds
Describe the surface deice operations when held in the manual position?
All surface deicer boots will inflate and stay inflated until switch is released
How does the pilot know that the boots are inflated?
When the WING DEICE and TAIL DEICE annunciators are illuminated
What is the max ambient air temp to operate the brake deice?
15C
When can the brake deice be operated continuously?
When the gear is down
What are the time limits for brake deice when the gear is up?
10 mins
What prevents ice from collecting in the fuel control unit?
Oil to fuel heat exchanger
When is the engine anti ice turned on?
In ambient temperatures of 5C or below, or in weather
How does P3 air become environmental bleed air?
P3 air is routed through a flow control unit which modulates air temp and pressure
What are the system components that manage cabin pressure?
a. Cabin pressurization controller
b. Outflow valve
c. Safety valve
What determines what the pressure altitude in the cabin should be?
Pressurization controller
What maintains the commanded cabin altitude by varying the rate at which air escapes from the pressure vessel?
Outflow valve
What is installed to protect the pressure vessel and assist the outflow valve?
Safety valve
When will the L/R BL AIR OFF annunciators be illuminated?
If the left or right bleed air valve is in either ENVIR OFF or PNEU/ENVIR OFF
What controls the environmental bleed air flow volume?
ENVIR BLEED AIR switch
Describe what happens when the envir bleed air switch is in the low position?
Reduces the bleed air for environmental purposes to about half
b. May be used when ambient temp is greater than 10C to ensure t/o power available
When is the NORM position for the envir bleed air switch used?
a. For increased heating or if pressurization is required
b. Normally selected during the climb phase
What does the AUTO position of the envir bleed air switch do?
a. Automatically selects the flow setting based upon the heat demanded to maintain temp or pressure requirements
What is the maximum operating cabin pressure differential?
6.6 psi
What does ‘catching the cabin’ mean?
a. When the aircraft descends faster than the cabin
i. If the aircraft altitude equals the cabin altitude, the outflow valve will open and the cabin will descend at the same high rate that the aircraft is descending
When will the CABIN ALTITUDE annunciator be lit?
If the CABIN ALT gauge exceeds 10000 feet
When will the CABIN ALT HI annunciator be lit?
Over 12000 feet
If the cabin pressure switch is in the DUMP position, what will the maximum cabin alt be?
13500
When does the CABIN DIFF HI annunciator illuminate?
When the pressure differential is greater than 6.9 psi
What components make up the landing gear hydraulic system?
a. Hydraulic power pack in the left wing
b. Actuator in each wheel well
c. Manual hand pump
d. Landing gear control handle
When will the landing gear warning horn go off?
When the flaps are up or approach and either or both power levers are below 85% N1
What system senses torque differences in both engines and deflects the rudder to assist with directional control?
Rudder boost
What system sense changes in the aircraft’s heading and automatically compensates with the rudder?
Yaw damper
How are all flight controls besides the flaps operated?
Through cables
How are the flaps operated?
Electrically
What helps to prevent asymmetrical flap deployment?
Left and right split flap switches monitor for more than 3-6 degrees out of phase
If the split flap switch stops the flap motor due to asymmetry, can the pilot do anything?
No, the pilot will have no control over the flaps through the flap lever
What will happen when the trim disconnect switch is pressed to the first level?
The autopilot, yaw damper and rudder boost disconnect