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Systems Flashcards

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1
Q

What items are included in the Exterior Safety inspection?

A

Chocks, Landing Gear (door position), APU Fire Control Handle, Flight Control surfaces, APU exhaust area (unless APU running)

These items ensure the aircraft’s exterior is safe for operation.

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2
Q

What is the first step in the Electrical Power Up procedure?

A

BAT Switch ON

This step initiates the electrical power-up sequence for aircraft systems.

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3
Q

What should the STBY PWR selector be set to during the Electrical Power Up procedure?

A

AUTO

This setting allows for automatic selection of standby power.

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4
Q

What is the position of the HYD DEM Pump selectors during the Electrical Power Up procedure?

A

OFF

Keeping the hydraulic demand pumps off prevents unnecessary power usage.

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5
Q

What should the Windshield Wiper selectors be set to during the Electrical Power Up procedure?

A

OFF

This prevents wipers from operating when not needed.

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6
Q

What is the position of the ALT Flap selector during the Electrical Power Up procedure?

A

OFF

Ensures that alternate flaps are not activated unnecessarily.

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7
Q

What position should the Landing Gear Lever be in during the Electrical Power Up procedure?

A

Down

This indicates that the landing gear is in the safe position.

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8
Q

What does EEC stand for?

A

Electronic Engine Control

EEC is responsible for managing engine performance.

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9
Q

What does the EEC command regarding fuel flow?

A

Commands Fuel Metering Unit to adjust Fuel Flow

This adjustment is crucial for maintaining optimal engine performance.

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10
Q

When does the EEC command App Idle?

A

NAI ON, Flaps in Landing position, CONT Ignition ON

These conditions ensure the engine operates safely during landing.

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11
Q

How does the EEC set thrust?

A

By controlling N1 based on Thrust Lever position

N1 is the rotational speed of the engine’s low-pressure compressor.

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12
Q

What does the EEC keep constant independent of OAT and Px

A

Thrust
## Footnote

This feature helps maintain performance despite environmental changes.

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13
Q

What adjustments does the EEC make for?

A

Changes in NAI, WAI & airplane Bleed requirements

These adjustments are critical for engine efficiency and safety.

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14
Q

What does the EEC provide during climb?

A

A FIXED Thrust Lever position

This simplifies thrust management for pilots.

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15
Q

What type of protection does the EEC provide?

A

Overboost protection

This prevents engine damage from excessive thrust levels.

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16
Q

What is the source of power to the BAT Chargers?

A

Ground Service Bus

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17
Q

What is the main power source to the Ground Service Bus?

A

AC Bus 1

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18
Q

What is the purpose of the ‘Ground Service’ switch located next to the L1 Door?

A

To power the Ground Service Bus from the same source as the Ground Handling Bus when AC Bus 1 is not powered

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19
Q

What is the main source of power for the CA Xfer Bus?

A

AC Bus 3

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20
Q

What is the backup power source for the CA Xfer Bus?

A

AC Bus 1

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21
Q

What is the main source of power for the FO Xfer Bus?

A

AC Bus 2

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22
Q

What is the backup power source for the FO Xfer Bus?

A

AC Bus 1

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23
Q

When is the Ground Handling Bus powered?

A

On the ground, anytime APU 1 or EXT 1 is AVAIL or ON

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24
Q

What are some of the items on the Ground Handling Bus?

A
  • Lower Cargo Handling and Lights
  • Fueling system
  • AUX Hyd Demand Pump #4
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25
When is the Main Deck Cargo handling Bus powered?
On the ground, anytime APU 2 or EXT 2 is AVAIL
26
What happens when you push a BTB switch?
Push OFF: opens the BTB & respective DCIR and resets Fault Logic circuitry. Push AUTO: arms the automatic AC bus tie circuitry & closes DCIR
27
What items are powered in flight with loss of all Normal AC Power?
• Left FMC • Left VHF Comm • NAI • Left PFD • Primary EICAS • Dome Lights • Left ND • CA Pitot Heat • L & R interphone panels
28
Can I fly an ILS with loss of all Normal AC Power?
Yes, BUT no FD or A/P
29
Can I trim with loss of all Normal AC Power?
Yes, using Alternate switches (through a separate control channel)
30
Can I get the Gear & Flaps down with loss of all Normal AC Power?
Yes, the Gear through its normal Hydraulic mode and the TE Flaps through the Primary mode. The LE Flaps will NOT extend prompting a Flaps Drive message (25 Kt additive to VREF - QRH)
31
What about Reverse, Speedbrakes & Anti-Skid with loss of all Normal AC Power?
No Reverse, No Auto Speedbrakes (manual OK), and no Anti-Skid
32
When is the Main Deck Cargo handling Bus powered?
On the ground, anytime APU 2 or EXT 2 is AVAIL
33
What happens when you push a BTB switch?
Push OFF: opens the BTB & respective DCIR and resets Fault Logic circuitry. Push AUTO: arms the automatic AC bus tie circuitry & closes DCIR
34
What items are powered in flight with loss of all Normal AC Power?
Left FMC, Left VHF Comm, NAI, Left PFD, Primary EICAS, Dome Lights, Left ND, CA Pitot Heat, L & R interphone panels
35
Can I fly an ILS with loss of all Normal AC Power?
Yes, BUT no FD or A/P
36
Can I trim with loss of all Normal AC Power?
Yes, using Alternate switches (through a separate control channel)
37
Can I get the Gear & Flaps down with loss of all Normal AC Power?
Yes, the Gear through its normal Hydraulic mode and the TE Flaps through the Primary mode. The LE Flaps will NOT extend prompting a Flaps Drive message (25 Kt additive to VREF - QRH)
38
What about Reverse, Speedbrakes & Anti-Skid with loss of all Normal AC Power?
No Reverse, No Auto Speedbrakes (manual OK), and no Anti-Skid
39
Where does the APU get its fuel?
AC available: Main Tank 2 / Pump 2 AFT AC NOT available: Main Tank 2 / DC Pump
40
How can I tell if the APU is running?
EICAS Status message 'APU running' APU Gens 'AVAIL' light STAT page: line of APU info
41
What does APU Gen 'AVAIL' light indicate?
APU Gen power acceptable
42
Can I start the APU in flight?
NO
43
Can the APU be operated in flight?
YES
44
Can I use the APU Gens in flight?
NO
45
With an APU fire light, what will automatically occur if the airplane is on the ground?
APU automatically shuts down and the APU extinguisher automatically discharges
46
What are the main items powered by HYD SYS 1?
Nose & Body Gear steering & actuation, Inboard TE Flaps, Left Outboard Elevator, Alternate Brakes, Center A/P
47
What are the main items powered by HYD SYS 2?
Stabilizer Trim, Elevator Feel, Alternate Brakes, Right A/P
48
What are the main items powered by HYD SYS 3?
Stabilizer Trim, Elevator Feel, Left A/P
49
What are the main items powered by HYD SYS 4?
Wing Gear actuation, Outboard TE Flaps, Primary Brakes, Right Outboard Elevator
50
What powers #1 Demand Pump?
Air (faster)
51
What powers #2 Demand Pump?
Elec (more torque)
52
Is there a shutoff valve for the Demand Pump?
NO; a switch but no valve
53
When do Demand Pumps 1 & 4 automatically operate?
Flaps in Transit or out of UP / respective Eng Driven pump output pressure low / respective Fuel Control switch in CUTOFF
54
What will cause the HYD SYS Fault light to illuminate?
Low Hyd system pressure Low Hyd reservoir qty Excessive Hyd fluid temperature
55
What will cause the Demand pump low PRESS light to illuminate?
Demand pump selector to OFF or AUX Output pressure is low with pump operating Demand pump fails to operate
56
With loss of HYD SYS 4, how do you lower the Ldg Gear & Flaps?
ALTN Gear extend switches / Secondary mode (electrically)
57
With the loss of HYD SYS 4 do you have Autobrakes? Anti-Skid?
NO / YES (in pairs only)
58
What may cause the nose to pitch up on landing with loss of HYD SYS 4?
Rapid extension of Spoilers; Spoiler panels 5,6,7, & 8 (4 inboards) will not deploy on touchdown
59
What is the difference between Normal & Alternate brake systems?
Normal brakes: Autobrakes available & individual wheel Antiskid protection Alternate brakes: No Autobrakes & lateral wheel pairs Antiskid protection
60
What are the indications of an engine fire?
Both Master Warning Lights, Engine Fire Light, Fuel Control switch Light, EICAS Fire MSG
61
What will unlock a Fire switch?
Fire Warning, Fuel Control switch in CUTOFF, Override switch/button
62
What happens when I pull a Fire switch?
Closes Engine & Spar fuel valves, Closes Engine Bleed valve, Trips Gen field, Shuts off HYD to EDP, Depressurizes the Demand pump, Arms both Fire extinguishers on the related wing
63
How many Fire bottles are available to an engine?
Two on each wing
64
What type of Fire detection do the engines have?
Dual loop ('and' system)
65
Will I get a Fire warning for an Engine Overheat?
No, that would be an Overheat warning
66
What type of detection do I have for a cargo fire?
Dual loops ('and' system); 4 loops in each Lower compartment, 16 in the Main (uses sample air from the center bleed duct)
67
What happens when I push the MAIN DECK cargo fire ARM switch?
Enables Main Deck fire suppression Turns off 2 Packs Turns off all airflow to the Main Deck Turns off all airflow & heat into the Lower Cargo compartments Closes the master Trim Air Valve Configures Equip Cooling to closed loop
68
What happens when I push the FWD or AFT cargo fire ARM switch?
Turns off 2 Packs Arms respective Lower Cargo compartment fire extinguishers Turns off all airflow & heat into the Lower Cargo compartments Closes the master Trim Air Valve Configures Equip Cooling to override
69
What happens when I push the cargo fire DEPRESS/DISCH switch if the MAIN DECK cargo fire arm switch is armed?
Initiates airplane depressurization to a cabin altitude of 25,000'
70
What happens when I push the cargo fire DEPRESS/DISCH switch if the FWD or AFT cargo fire arm switch is armed?
Initiates extinguisher discharge sequence to provide effective agent concentration for 334 minutes (2 bottles discharge immediately and the other 4 discharge after a brief delay or upon touchdown)
71
When is automatic CONT ignition provided?
Start with N2 < 50% ## Footnote TE Flaps out of Up, NAI ON
72
When must I use CONT ignition?
Heavy rain, Severe turbulence, Volcanic Ash, Icing conditions (if NAI or its auto feature is INOP)
73
What is displayed on the Secondary EICAS display?
N2 rpm, Fuel Flow, Oil Pressure, Oil Temperature, Oil Quantity, Vibration
74
Where would I read 'X-BLD' indication if it is recommended for inflight start?
On the N2
75
What protection does AUTO START provide?
Hot start, Hung Start, No EGT
76
What does AUTO START not protect?
No Oil pressure, No N1 rotation
77
With AUTO START armed, what happens when I pull the start switch?
Arms the Start Valve, Opens the Engine (pylon) Bleed Air Valve
78
What does the NORM selection mean on the STBY Ignition Selector?
Normal AC supplies power to the selected igniter ## Footnote Stby Pwr supplies power to both igniters if AC power is lost
79
What does 1 or 2 mean on Stby Ignition?
Stby Pwr system supplies power continuously to the respective igniter
80
Pressing the CONT Ignition switch to ON does what?
Selected igniter operates continuously, Approach Idle minimum is commanded
81
When does the selected engine igniter operate?
Start switch out, NAI ON, Flameout detected

B747 (1 decks)

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