CH47_Test_4_deck Flashcards
(156 cards)
1
Q
Environmental:Where should the air control knobs be positioned prior to starting the heater or blower?
A
IN and CLOSED
2
Q
Environmental:What is the time limitation for operating the pitot heat while on the ground?
A
5 minutes
3
Q
Environmental:When should pitot heat be turned on in flight?
A
For flights in rain to prevent moisture from accumulating in pitot tubes, DAFCS yaw ports, static ports, and tubing.
4
Q
Environmental:Will the heater blower continue to run after the heater had stopped?
A
Yes, to turn it off, place the heater switch to HTR ON
5
Q
Environmental:How long should you wait after stopping the heater before you turn the generator(s) off?
A
2 minutes
6
Q
Environmental:What should you do with the heater function switch if the HEATER HOT caution light is on?
A
The heater function switch shall remain ON while performing Action step 1 through 3.Actions:1. Wait 2 minutes for cool down.2. HTR START switch - PressF 3. HEATER HOT - Monitor
7
Q
Environmental:What is the airspeed limit for windshield wiper operation?
A
The windshield wipers shall be off at airspeeds above 130 KCAS.
8
Q
Environmental:What item is the crewmember required to check during the PITOT heat check?
A
The pitot tubes.
9
Q
Environmental:Fuel for the heater comes from what fuel tank?
A
Right main
10
Q
Environmental:Windshield anti-ice provides what two features?
A
Enables safe flight in icing conditionsPilot and Co-pilot windows have anti-ice
11
Q
Environmental:What is the purpose of the cabin heater thermostat?
A
Helps to maintain cabin temperature.
12
Q
Environmental:Identify the component in the heater closet that turns on the blower for avionics cooling.
A
Heater Electrical Blower
13
Q
Environmental:What component in the fuel control for the heater raises fuel pressure for the heater?
A
Heater fuel control boost pump
14
Q
Environmental:Windshield Anti-ice when turned on reaches operating temperature in less than how many minutes?
A
1 minute.
15
Q
Environmental:If a windshield is bubbling or delamination occurs around a windshield sensor element during operation, what should be done immediately?
A
Immediately place switch to OFF for that windshield.
16
Q
Environmental:To prevent windshield damage, do not operate the windshield wipers when windshields are in what condition?
A
Dry conditions.
17
Q
Environmental:If the heater shuts down during icing, do not attempt restart until?
A
Ice is removed from the heater intake, heater exhaust, and fuel drain
18
Q
Environmental:Pull out the cockpit air knobs ___ to preclude dirt and debris from being blasted into the air and the crew’s eyes.
A
Slowly
19
Q
Environmental:What directs air flow to the MFDs for purpose of cooling the MFDs?
A
MAD vent handle.
20
Q
Electrical:Where is the ELEC power panel located?
A
Cockpit overhead switch panel.
21
Q
Electrical:How are the main AC generators cooled and lubricated?
A
AFT Transmission Main lubrication system
22
Q
Electrical:The GCUs protect the AC system from what four conditions?
A
Over voltageUnder voltageUnder frequencyFeeder faults
23
Q
Electrical:Where are the #1 and #2 auxiliary PDPs located?
A
Cabin Area
24
Q
Electrical:How is the APU generator cooled?
A
Air cooled by a build-in fan.
25
Electrical:An indicator on the center instrument panel indicates when the battery voltage drops below ___.
20 V DC
26
Electrical:What is the purpose of the AC bus-tie gang bars on each PDP?
Isolate the respective system and Prevent a bus-tie to the other side.
27
Electrical:With the BATT switch in OFF position, the battery supplies DC electrical power only to the ___.
Battery bus.
28
Electrical:The battery bus can be energized by what two sources of DC electrical power?
The battery and the #1 DC bus
29
Electrical:What components provide electrical power to the #1 and #2 DC buses?
The #1 and #2 transformer rectifiers.
30
Electrical:What is the order of priority for the DC electrical system from highest to lowest?
Transformer rectifiers, External DC power, Battery.
31
Electrical:TRUE or FALSE. The battery switch (BATT) must be in the ON position in order to recharge or maintain the charge of the battery.
TRUE
32
Electrical:What three DC buses are powered by the battery with the BATT switch in the ON position?
Battery BusEssential 1Essential 2
33
Electrical:If the APU is running or external AC power is connected, DC power is supplied by the helicopter ___.
Transformer Rectifiers
34
Electrical:What is the order of priority for the AC electrical system from highest to lowest?
Main AC generatorsAPU GeneratorExternal AC power
35
Electrical:What "system" allows either main generator to provide electrical power to both buses should a single generator fail or be taken off-line?
The bus-tie system
36
Electrical:If all three generator switches are placed to the ON position (No.1, No. 2 main, and APU) which one(s) will provide electrical power to the No.1 and No.2 AC buses?
Each main AC generator will provide power to its respective bus. The APU generator power will not be connected to the bus.
37
Electrical:The primary active caution messages to look for in determining whether or not a bus-tie exists are the respective RECT FAIL (OFF), ENG FUEL PRESS LO, and ___.
AFCS FAIL
38
Electrical:Should both generators fail, both rectifiers will also be ___.
Inoperative
39
Electrical:What components measure electrical current as it leaves the generator and again as it enters the electrical bus?
Generator Control Units
40
Electrical:Name all of the DC sources and DC buses.
Sources:BatteryNo.1 Transformer RectifierNo.2 Transformer RectifierAGPUBuses:Battery busNo.1 DC Essential busNo.2 DC Essential busNo.1 DCNo.2 DC
41
Electrical:Name all of the AC sources and AC buses.
Sources:APU GeneratorNo.1 Main GeneratorNo.2 Main GeneratorAGPUBuses:No.1 ACNo.2 AC
42
Fuel:What happens when all the fuel in an AUX tank is pumped to the main thank and consumed?
The fuel pump is automatically shut off and a check valve closes to prevent fuel from being pumped back into that tank.
43
Fuel:If an AUX fuel pump fails during normal flight, will that fuel still be usable?
NO
44
Fuel:During flight, should both boost pumps fail in a MAIN tank, fuel will be drawn from the MAIN tank, as long as the helicopter is below ___.
6000' PA.
45
Fuel:Fuel is delivered to the APU from the ___ and to the heater from the ___.
Left main tankRight main tank
46
Fuel:Where is the single point pressure refueling panel and nozzle adapter located?
Right side of the aircraft above the FWD landing gear.
47
Fuel:What keeps fuel loss and post-crash fires to a minimum by breaking or shearing at predetermined locations and sealing themselves to retain fuel?
Breakaway self-sealing fittings - installed where the main fuel lines connect to the fuel tank and adjacent structure.
48
Fuel:What is the purpose of the jet pump located at the forward end of each main tank?
Evacuating the pressure refueling system manifold and refuel crossover line.
49
Fuel:What is installed in each fuel tank to prevent fuel spillage from the vents should the helicopter roll over following a crash landing?
Rollover vent system.
50
Fuel:Engine fuel valves and XFEED valves can be operated ___ or ___.
ElectricallyManually
51
Fuel:How is an engine fuel valve closed or opened:Electrically - ___Manually - ___
Electrically operated by the FIRE PULL handles on the center instrument panel.Manually operated by a lever on the valve.
52
Fuel:Can fuel be transferred between tanks through the XFEED system?
No
53
Fuel:What indicates to crew the operating condition of the XFEED and fuel valves?
Fuel Valve Warning Lights
54
Fuel:Name the three conditions that cause the engine or XFEED fuel valve warning lights to illuminate.
Each time the XFEED switch is moved from CLOSE to OPEN, OPEN to CLOSE, or when a FIRE PULL handle is pulled or pushed.When a short circuit occurs.When the valve protection relay fails.
55
Fuel:Fuel Screen (pages) are accessed by pressing which key on the MFD?
T6
56
Fuel:The engine fuel, XFEED, and refuel gate valve warning lights will illuminate under what three conditions?
Whenever a valve position is moved electricallyWhen a short circuit occursWhen the protection relay fails.
57
Fuel:What indication will show in the Fuel Tank Readout Window of the fuel page to indicate unusable fuel (either manually toggled or from loss of fuel pressure)?
White "x"
58
Fuel:If the engines are running, CAAS will activate a FUEL LVL caution at ___ indicated fuel as a back-up in the event the fuel quantity low level warning system has failed.
< 360 lbs.
59
Fuel:ENG1 FUEL PRESS LO and/or ENG2 FUEL PRESS LO caution(s) will become active when fuel pressure in the respective fuel line is below ___>
10 +/- 1 psi.
60
Fuel:An engine FUEL PRESS LO caution active does not represent a possible engine flameout, as long as flight is conducted at or below ___.
6000' PA.
61
Fuel:The fuel flow display on the fuel page of the MFD will flash when fuel flow is equal to or > ___.
2995 lbs./hr.
62
Fuel:During pressure refueling, the maximum fueling rate is ___ at 55 psi.
300 gal/min.
63
Fuel:How is the jet pump system activated?
Turning on the FWD pump in either MAIN tank.
64
Fuel:How is electrical power supplied to the refuel station?
Refuel STA switch - ON
65
Fuel:What two fuel system related switch positions are monitored by the Cockpit Voice and Flight Data Recorder (CVFDR)?
Main fuel boost pumpsEngine XFEED switch
66
Fuel:If a REFUEL VALVE POSN indicating light remains illuminated when power is removed from the refuel station during rapid refuel operations, what will be the mission status of the fuel in the associated AFT AUX fuel tank?
Fuel in the tank will be unusable.
67
Fuel:What is the first underlined step to follow in the event of an active ENG1 FUEL PRESS LO or ENG2 FUEL PRESS LO caution?
XFEED switch - open (above 6000' PA)
68
Fuel:What should be avoided if both boost pumps fail in either main fuel tank with the XFEED open and a low fuel condition?
Nose low attitude excess of 5 degrees.
69
Fuel:You are in flight at an altitude of 3200' PA when a L FUEL LVL and ENG2 FUEL PRESS becomes active simultaneously. What two immediate actions must you perform?
XFEED switch - CLOSELAND AS SOON AS POSSIBLE
70
Fuel:A Fuel Flow Signal Conditioning Unit converts the analog signals from the ___ into digital format for use in the CAAS.
Fuel Flow Transmitter.
71
Fuel:How many fuel probes are in the fuel quantity indicating system?
10
72
Fuel:Where are the Bellmouth fittings located?
In each MAIN tank at the AFT end
73
Fuel:The pressure refueling shutoff valves are controlled by ___.
High level shutoff valves in their respective tank.
74
Fuel:What is the purpose of installing a ground cable on the ERFS II system?
Provides a means of dissipating any static or EMI-induced changes from the tank(s)
75
Fuel:The ERFS lateral restrain ratings are ___.
8 G's with each tank 1/2 full
76
Fuel:Three ERFS II tanks provide how much added fuel capacity?
800 gallons each.
77
PP:Spell out the following engine system Abbreviations:FADEC - ___ECU - ___HMA - ___RDPS - ___PRI - ___REV - ___CONT - ___NG - ___NP - ___PTIT - ___
Full Authority Digital Electronic ControlElectronic Control UnitHydromechanical Metering AssemblyRatio Detector Power SupplyPrimary (operation for the FADEC system)Reversionary (backup operation for the FADEC system)Contingency PowerGas Producer, SpeedPower TurbinePower Turbine Inlet Temperature
78
PP:Identify the 4 major sections of the T55-GA-714A Turbine Engine.
IntakeCompressorCombustorExhaust
79
PP:Identify the three engine mounted components that have impending bypass indicators that should be checked on preflight inspection.
Main Fuel FilterMain Oil FilterIn-line Fuel Filter
80
PP:What NG speed constitues an NG overspeed?
NG > 111%
81
PP:Identify the engine TQ limits (dual/single).
Dual - 100%Single - 123%
82
PP:Identify at what PTIT time limted operation begins.
PTIT > 816* C
83
PP:Identify the component that supplies the engine oil pressure signal that is seen on the powertrain portion of the engine instrument page?
Oil Pressure Transmitter.
84
PP:Identify the engine oil temperature limit.
Max - 149* C
85
PP:What does the load share switch on the FADEC control panel allow the pilot to choose for engine load share?
Torque or PTIT
86
PP:Name the component installed in the flight control closet for the purpose of eliminating rotor droop and identify the two types of signals this component provides to the ECU?
Thrust Control Position Transducer (CPT)provides Position and RatePrevents load anticipations and prevents rotor droop through thrust rod movement.
87
PP:An Engine FAULT detected by the ECU that does not impact the normal control of the engine is a ___.An Engine FAULT that could cause unacceptable engine or aircraft performance is a ___.
Soft faultHard fault.
88
PP:When the Ignition Lock Switch (Key) is in and ON, this supplies power to the circuit of what two components on the engine for the purpose of engine starting?
Engine Ignition excitersStart Fuel Solenoid Valve.
89
PP:Below 6000' PA, what component draws fuel out of the main tank to the engine if the main tank boost pumps fail?
Engine Driven Fuel Pump.
90
PP:Identify the FADEC Modes of operation the Bleed Band system automatically operates.
Primary and Reversionary or both modes.
91
PP:Name the system that automatically controls engine operation throughout the full operating range of the engine.
Full Authority Digital Electronic Control (FADEC) system.
92
PP:Identify the Five Stations of the T55-GA-714A Engine?
Intake - 1Compressor - 2Diffuser - 3Combustor - 4Exhaust - 5
93
PP:The FADEC Control Panel located on the overhead console provides what to the Aircraft operators?
Engine control on the ground and in flight.
94
PP:With the ENG COND levers in FLT and Primary mode selected, NR will be maintained at what selected speed?
The speed selected on the NR Switch Selection.
95
PP:Name the component on the engine that supplies the PTIT data to CAAS for display on the EICAS page on the MFD.
PTIT Bus Bar.
96
PP:Name the component that supplies the NR rotor speed data to CAAS for display on the EICAS page on the MFD.
Permanent Magnetic Generator (PMG) in the main generators
97
PP:Name the component that supplies the NG speed data to CAAS for display on the EICAS page on the MFD.
NG Speed sensor mounted on the engine oil pump.
98
PP:Name the component mounted on the engine that supplies the engine torque data to CAAS for display on the eICAS page on the MFD.
Torquemeter Junction Box.
99
PP:Name the component that eliminates small particle build up on the engine chip detector to prevent an engine chip caution.
Chip Detector Fuzz Burn-off Module (power module)
100
PP:During a pre-flight inspection, you are checking engine fluid lines for what 2 faults?
Chafing and Leaks.
101
PP:Write out the underlined Immediate Action steps for Single Engine Failure (ENG1 FAIL or ENG2 FAIL WARNING).
External Cargo - Jettison (as required)FLT DIR CPLR - UncoupledDAFCS Modes - OFF
102
PP:Write out the underlined Immediate Action steps for DUAL ENGINE FAILURE (ENG1 FAIL AND ENG 2 FAIL WARNING).
AUTOROTATEExternal Cargo - Jettison (as required)FLT DIR CPLR - UncoupledDAFCS Modes - OFF
103
PP:Write out the underlined Immediate Action steps for EMER ENG SHUTDOWN.
ENG COND Lever - STOPFIRE PULL Handle - Pull (as required)FIRE PULL Handle - Twist (engine fire only)
104
PP:Write out the underlined Immediate Actions steps for ABORT START.
ENG COND Lever - STOPENG START Switch - Motor (if high PTIT is indicated)
105
PP:Engine fire extinguisher bottles gauges should be checked on preflight in accordance with what chart in the TM 1-1520-271-CL?
Engine Fire Extinguisher Bottles Pressure Chart.
106
PP:How long are you to hold and release the engine start switch when starting a selected engine?
Start and hold until NG accelerates to 12%, then release switch.
107
PP:Agent from one of the two engine fire extinguisher bottles can be directed to which engine?
Both engines
108
PP:Before turning on the backup power switch during engine startup, what two CAUTIONS are you looking for to be active?
FADEC 1 and FADECT 2 active
109
PP:During a FADEC 1 or FADEC 2 failure, what switch on the FADEC panel does the pilot use to keep engines matched in TQ or PTIT?
Increase / Decrease switch
110
PP:What is the minimum duration of cool down time the engines must be run with the thrust at ground detent before shutting down the engines?
2 minutes
111
PP:Describe the purpose of the engine main oil filler assembly.
Filters the oil for engine operation.
112
PP:Describe the purpose of the main fuel filter.
Filter the Fuel for HMA operation
113
PP:What engine indications are you looking for during a first engine start in primary mode that shows you that engine system is operating properly at ground idle?
Check when stabilized at ground idle (NG at 50% minimum), engine oil pressure for 5 psi minimum within 45 seconds.
114
PP:After starting the first engine, the second engine must be started or motored for ___.
10 seconds within 3 minutes.
115
PP:With the ECLs in flight, why should you delay turning the second generator on for 2 seconds?
Gives the ECU time to sample power without causing a soft fault.
116
PP:The EAPS has a high electrical power requirement. Because of this, both EAPS fans should not be operated at the same time while using what generator for electrical power?
APU Generator.
117
PP:What are the engine oil pressure limitations for:Minimum oil pressure - ___Contingency power - ___Cold Weather starts - ___
5 psi110 psi150 psi
118
PP:What are the two functions of the liquid-to-liquid cooler?
Cool the Oil and Warm the Fuel for engine operation.
119
PP:Name the component mounted on the AGB that supplies the engine CHIP caution signal.
Engine Chip Detector.
120
PP:Name the component on the engine that meter's fuel for engine operation and supplies electrical power and NG speed data to ECUs.
HMA or HMU
121
PP:Name the fuel pumps the AGB drives during engine operation.
Engine oil pumpEngine driven fuel pumpHMA
122
PP:Name the two functions of the engine oil level indicator.
Oil level in engine oil tank and provides engine low oil signal to CAAS.
123
PP:Name the component that provides an NG speed signal to CAAS only and name the component on the engine it is mounted on.
Magnetic NG Speed SensorMounted on the Aft end of the engine oil pump.
124
PT:How many synchronizing shafts are installed on the CH47F?
9
125
PT:What should you do if you find an engine or combining transmission oil quantity indication low and the aircraft has been shut down for more than 30 minutes?
Operate the rotors for a minimum of 5 minutes to vertify oil level before servicing.
126
PT:The fluid levels in the combining and engine transmissions should be checked within ___.
30 minutes after engine shutdown.
127
PT:What four items of information are provided on the Powertrain page for all transmissions?
Oil PressureOil TemperatureDEBRISCHIPS
128
PT:What do the synchronizing shafts utilize to reduce vibrations?
Lord Mounts
129
PT:What does a free-floating adapter allow the drive and synchornizing shafts to do?
Forward and aft movement or side to side for engine XMSNs.
130
PT:Why is phasing the rotor system necessary?
Maintain the proper alignment.
131
PT:Which transmission do not have an auxiliary lubrication system?
The engine XMSNs
132
PT:What is the location of the temperature switch that activates the ENG1 or ENG2 XMSN WARNING?
On the bottom of each engine XMSN (pointing forward)
133
PT:Where are the temperature probes for the ENG1 XMSN and ENG2 XMSN located?
In each sump of the engine transmission reservoirs
134
PT:When do the transmission auxiliary lubrcation systems become active?
If the main lubrication system becomes inoperative.
135
PT:When will XMSN PRESS HI advisory become active?
> 90 psi
136
PT:What provides lubrication and cooling to the main AC generators?
Aft XMSN Main oil pump
137
PT:What oil lubrication system provides oil to the AFT SHAFT bearing?
Aft Transmission Main Oil
138
PT:What are the crew indications when a debris screen is bridged with conductive particles?
Illuminated on the Maintenance PanelPower train page
139
PT:What is/are the immediate action(s) for ENG1 or ENG2 XMSN WARNING?
EMER ENG SHUTDOWN (affected engine)F Affected ENG XMSN - Check (visually check for fire)LAND AS SOON AS POSSIBLE
140
PT:What temperature will activate the:ENG1 XMSN / ENG2 XMSN WARNING - ___.FWD, COMB, AFT, ENG1, ENG2 CAUTION - ___.
> 190* C> 140* C
141
PT:How/where is AFT SHAFT oil pressure low indicated?
Appropriate light on the maintenance panelBottom left of MFD (as well as WCA page)
142
PT:Why must you reduce electrical load if the AFT XMSN OIL HOT caution is active?
To reduce temperatures (more electrical load leads to hotter temperatures)
143
PT:Which two transmission oil pressure cautions are activated when pressure is less than 10 psi?
COMB AUXAFT SHAFT
144
PT:What is the purpose of the Power Train system?
To transmit the power from the engines to the rotors. Change the direction and reduce the RPMs of the power.
145
PT:How many transmissions are in the Power Train system?
5
146
PT:The driveshaft flexible couplings can flex due to what?
Multiple layered stainless-steel plates
147
PT:The quill shafts are located where?
Between the engines and their respective transmissions.
148
PT:Which auxiliary oil lubrication systems service the engine transmissions?
The engine transmissions do not have auxiliary lubrication systems.
149
PT:When the engine transmission filter differential pressure indicator extends, can the button be reset at that time?
NO
150
PT:The left oil pump in the combining XMSN is used for which transmissions?The right pump?
Combining XMSN Main systemNo.1 engine XMSNCombining XMSN Auxiliary systemNo.2 engine XMSN
151
PT:Where should the oil level be when preflighting the forward XMSN?
Between the Add and Full linesCheck after 30 minutes of shutdown
152
PT:Where is the cooling air drawn in through for the forward transmission oil cooler?
Air is drawn through the air inlet duct around the synchronizing shaft.
153
PT:What drives the forward oil cooler fan?
The transmission and No.1 drive shaft.
154
PT:What automatically eliminates nuisance chip indicator lights caused by minute particles in the XMSN oil system?
Chip Detector/Fuzz Burn-off System
155
PT:The aft transmission oil cooler is located where?
The oil cooler and fan are mounted between the main generators on the aft section.
156
PT:The aft transmission main oil pump supplies oil to which components on the aft transmission?
Aft XMSN gears and bearingsAft Vertical Shaft thrust bearingMain AC Generators
