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Oral Questions > Oral Questions > Flashcards

Oral Questions Flashcards

1
Q

How many status messages can be shown on the status page

A

11

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2
Q

How many external power attachments are there?

A

1

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3
Q

How do we know external power has been successfully attached

A

AVAIL light illuminate

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4
Q

With External Power available, is there any more buses available?

A

Ground Handling. Loyal to external power
In addition to Hot Bat, Main Bat, Standby AC and DC Buses

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5
Q

What does the addition of Ground Handling bus provide with the connection of External power the aircraft?

A

Ability to load cargo, refuelling
Backup fuelling is on the Hot Battery Bus

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6
Q

The ground handling bus can only be powered by one of 2 AC power sources. What are they?

A

APU and External power

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7
Q

What are the components of the BTB system

A

L + R AC BTB
DC BTB
Flight Instrument Transfer BTB

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8
Q

Why are there only 2 BTB switches?

A

When pushed in, Boeing controls the logic/system, and all 5 work automatically

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9
Q

If the 2 BTB switches are NOT in the auto position, will any of the BTB’s work automatically?

A

No, the Boeing logic can’t control the system

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10
Q

What’s the purpose of the BTB system?

A

Prevent Paralelling
Isolate from a fault
Provide cross side power

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11
Q

What is parelleling

A

When more than 1 AC power sources try to power a bus

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12
Q

What’s the position of the BTB’s, on the cross side bus, with external power connected but not turned on?

A

Both open

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13
Q

What is the position of the Flight Instrument Transfer and DC BTB’s, with external power connected but not powering the system?

A

Open

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14
Q

Do the L and R BTB’s work in normal and non normal times? What about the DC BTB’s?

A

L + R = Yes
DC = Only in non normal

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15
Q

External power is turned on. What happens to the L + R BTB’s on the cross tie bus?

A

Close

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16
Q

WHat is powered with the closing of the L + R BTB on the cross tie bus when external power is selected?

A

L + R Main AC buses. And from there all buses are powered

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17
Q

Starting the APU. What is the process?

A

Fully automatic, controlled by the ECU

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18
Q

APU start selector is moved from off to on to start back to on, why is that done?

A

Because its spring loaded and it may snap back

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19
Q

Starting the APU, what is the first light we see?

A

Single fault light flash indicating the fuel valve moving from fully closed to fully open

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20
Q

Starting the APU, why does the Run light blink twice?

A

System self test of the 2 batteries

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21
Q

On starting the APU, what occurs after the RUN light blinks twice?

A

ECU introduces fuel and ignition automatically

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22
Q

What do we see if the APU at 95% or above?

A

Run light remains on steady

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23
Q

Just started the APU, with the steady run light on, with the external power powering all buses, is the APU powering any buses?

A

No

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24
Q

With external power powering all buses and the APU available, what must happen to get the APU to power the buses?

A

External power to off

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25
Q

After selecting APU power, which buses are now powered by the APU?

A

All buses except the ground handling bus

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26
Q

Does the position of the BTB on the cross tie bus change with the selection of the APU as the power source?

A

Still closed

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27
Q

APU running, disconnection of external power - what happens to the AVAIL light?

A

Goes off

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28
Q

What happens to the ground handling bus with the disconnection of the external power?

A

APU now powers the bus

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29
Q

If we take off with the APU running, will the Ground Handling bus be powered in flight?

A

No.

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30
Q

When does the Ground Handling Bus stop being powered if going in to flight, if the APU is running?

A

Main gear tilt logic

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31
Q

Starting the engine, which HYD system is the first to be pressurised?

A

Right.

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32
Q

Why is the R HYD system the first to be pressurised on engine start?

A

Normal Brakes on the R system

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33
Q

Why is the HYD system pressurised counter clockwise? And depressurised clockwise

A

Prevent unnecessary fluid transfer in to the R reservoir

Up to 19.24 on first video

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34
Q

What is the purpose of the APU shuffle?

A

Old airplane. Doesn’t automatically manage flow properly.
One way check valve may not work

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35
Q

Talk thru the APU shuffle

A
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36
Q

Cleared to start the right engine. Engine start selector moved to ground. Why do we start a timer?

A

Engine Starter Duty Limit.
5 minute limit. For every minute the starter is engaged requires 30 second rest

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37
Q

When the start selector is moved to ground, what happens to the ignition?

A

Armed

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38
Q

What happens when the ignitions are armed during start?

A

Sequencing the igniters

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39
Q

With the start selector moved to ground, what happens to the start valve?

A

Opens

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40
Q

How can we confirm the start valve has opened?

A

Valve light illuminates and goes off

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41
Q

After the start valve has been confirmed open, what is the next system to observe?

A

Duct pressure
21PSI

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42
Q

Why isn’t 21PSI duct pressure seen before the start of the engine?

A

APU wasn’t commanded to provide increased pneumatic pressure until ground is selected

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43
Q

After duct pressure of >21PSI is confirmed, what is checked next in the engine start sequence?

A

Upper line of the lower EICAS
Oil Pressure and N2 both increasing
Fuel cutoff control switch
Clock started after minimum fuel on indicator passed

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44
Q

Describe Stabilised N2

A

Less than 1% rise in 5 seconds = max motoring

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45
Q

When is fuel introduced during the start?

A

Max motoring

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46
Q

What needs to occur within 25 seconds of max motoring?

A

Light off

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47
Q

What must be visually confirmed when fuel is introduced during a start?

A

Spar Valve open
Engine Vale open
Confirms that there is pilot control of the engine

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48
Q

What happens to the ignition with the introduction of fuel during start?

A

Energised

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49
Q

What can be confirmed after ignition is energised on the engine instruments?

A

EGT rise, light off

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50
Q

The EGT tick on the N1 gauge, that is only present during start - indicates what?

A

indication of hot start limit (750 degrees)

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51
Q

On engine start, passing 50% N2, what happens to the start valve?

A

Closes

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52
Q

What is start cutout?

A

Start selector moves to auto

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53
Q

With starter cutout, what happens to the ignition?

A

Disarmed - because engine is self sustaining

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54
Q

When do we call normal start?

A

When the Boeing logic for a normal start is met, the EGT tick is removed.

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55
Q

During start of the right engine, what is load shed?

A

Utility buses
L electric demand pump

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56
Q

Started the right engine, APU running, left engine shutdown, what is providing air to the 4 ducts?

A

The right engine

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57
Q

When the left engine is started, what happens to the rightbleed air valves and the APU bleed air valve?

A

APU bleed air valve open
Engine bleed air valves close
because the APU bleed air is what starts the engines

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58
Q

With the right engine started, the left engine still shut down, what is the position of the BTB’s?

A

R BTB open
L BTB closed
The R BTB is open to prevent the APU paralleling

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59
Q

What happens to load shedding after the start of the first engine with the APU running?

A

Load shedding is restored

60
Q

What is load shed during the start of the second engine?

A

Onside Utility bus

61
Q

What happens to the bleed air valves up successful start of the second engine?

A

Both engine bleed air valves open
APU bleed air valves close

62
Q

After successful start of both engines, what is the position of both AC BTB’s?

A

Open

63
Q

How many status messages can be shown on the status page?

A

11

64
Q

If more than 11 status messages exist, how are they displayed?

A

10 messages on page one
Press status button to view second page

65
Q

If status button is pressed and there is nothing to display on page 2, what does the screen look like?

A

Blank, push status again to return to page 1

66
Q

Can we fly with the lower EICAS page blanked?

A

We can, but we don’t as a group of pilots
If it is blanked, it will be automatically repopulated with the correct EICAS message

67
Q

What is a status message?

A

Maintenance related problem

68
Q

When do we have to either clear or fix a status message?

A

Before engine start or push back for the purpose of engine start

69
Q

The symbols on the status page are produced by?

A

EICAS computer

70
Q

What are the HOBOS?

A

Hydraulic quantity
Oxygen Quantity
Brakes Set
Oil Quantity
Status Messages - check and clear

71
Q

What is the status clearing procedure?

A

First square push and release
First Round push and release
Last Round push a hold to clear

If messages don’t clear call maintenance

72
Q

What does EEC stand for?

A

Electronic Engine control

73
Q

Is the EEC for the L + R Engine a full FADEC?

A

Yes

74
Q

There are 2 ways to operate the EEC. What are they?

A

Normal
Alternate

75
Q

With the EEC in normal what is the controlling parameter?

A

N1

76
Q

With the EEC in alternate, what is the controlling parameter?

A

N1

77
Q

With EEC in normal what protections are provided?

A

Overspeed
Overboost

78
Q

What is overspeed protection?

A

RPM

79
Q

What is Overboost protection?

A

Pressure/Power

80
Q

What is the maximum thrust produced by this airplane?

A

60,200lbs

81
Q

How does the EEC protect the engine in overboost protection?

A

EEC commands the fuel metering unit to remove fuel

82
Q

What is an EEC soft transition?

A

Boeing logic commands the EEC to alternate mode

83
Q

What is an EEC hard transition?

A

Pilot commands EEC to alternate

84
Q

Can overboost occur during a hard transition?

A

Yes
Boeing protects against this during a soft transition

85
Q

When in alternate, what EEC protections are provided?

A

Overspeed

86
Q

If you have a soft transition in flight, are there any immediate actions that should be completed?

A

No. Boeing logic ensures little will change

87
Q

What are the resources provided by the EEC in flight?

A

N1/power relationship
Atmospheric compensation
Bleed air compensation
Approach Idle
Auto ignition in Auto
Auto relight

88
Q

On an auto relight, when does the EEC sense that you’ve lost the engine?

A

Below N2 idle

89
Q

In flight, R Generator OFF light while the IDG’s are providing power and the APU is shutdown, what happens to the GCB?

A

Opens to protect the good bus from the bad generator

90
Q

In flight, Generator OFF light while the IDG’s are providing power and the APU is shutdown, what will the BTB’s on the AC BTB system do?

A

Both with close power the opposite side

91
Q

In flight, Generator OFF light while the IDG’s are providing power and the APU is shutdown, BTB’s close to provide power to the other side. Does load shedding occur?

A

Yes.

Galley buses
Utility buses
Whatever Boeing logic decides

92
Q

EICAS message: R GEN OFF
What checklist is called for?

A

Right generator off checklist
Non normal checklist

93
Q

EICAS message: R GEN OFF
What will the R Generator Off checklist require to be completed?

A

Reset the generator

94
Q

In flight, the APU at 95%, steady run light, R GEN off, how do the BTB’s look on the cross tie bus?

A

L BTB open
R BTB closed

95
Q

Middle of Atlantic Ocean, 2 generators powering buses, R Bus off, what lights are on, with R bus off?

A

R Bus Tie ISLN
R Bus OFF
R GEN off light
utility bus lights

96
Q

Middle of Atlantic Ocean, 2 generators powering buses, R Bus off, what items are no longer powered by the R AC bus? What items are now powered by another AC power source?

A

R TR no longer powered
Ground Service no longer powered
R Main DC bus continues to be powered by the L Main DC bus thru DC BTB
R AC transfer bus no longer powered
FO Flight Instrument Transfer bus now powered by the L Main AC bus thru the BTB system
Both utility buses are no longer powered as we are single AC power source

97
Q

With the loss of the R main AC bus, what is the implication of losing the Ground Service Bus?

A

No battery charging.

Batteries not discharging

98
Q

With the loss of the R generator, the APU is started as backup power source for the operating L Generator, where do we point the nose of the airplane?

A

Nearest suitable airport

99
Q

Single AC power source, diverting to nearest suitable. Who should we talk to?

A

Dispatch

100
Q

Single AC power source, diverting to nearest suitable. 1 hour 11 minutes from diversion airport. Left bus light comes on, what is this called

A

Dual Bus Failure

101
Q

Single AC power source, diverting to nearest suitable. With a failure of both AC buses, are there any normal AC buses powered?

A

No

102
Q

Single AC power source, diverting to nearest suitable. With a failure of both AC buses, what does Boeing logic command?

A

HDG to come on

103
Q

How many buses does the HDG power?

A

7
4 standby buses
2 AC transfer buses
Captains Flight Instrument Transfer Bus

104
Q

How does the cockpit look when powered by the HDG?

A

Everything left of the gear handle is powered except the 2 CRT’s and the Autobrakes

105
Q

On the HDG why does the battery discharge light come on?

A

Battery charger is produces stronger power than the HDG, as soon as they equal the discharge light goes off

106
Q

How much time do we have on batteries?

A

30 minutes

107
Q

Why does the Heading flag display on the captains RDMI after 5 minutes on hot battery bus power?

A

R IRU shut down

108
Q

On Battery power, how many buses are powered?

A

Battery Bus
Hot Battery Bus
Standby AC
Standby DC

109
Q

On batteries, what happens to the OVRD boost pump?

A

Not powered

110
Q

On batteries, how is fuel delivered to the engines?

A

Suction fuel

111
Q

What considerations should be made with reference to altitude and suction fuelling?

A

Lower is better

112
Q

On battery power how is the gear extended?

A

Alternate gear extension?

113
Q

On alternate gear extension, how do we release the uplocks that holding the nose gear and main gear doors up?

A

Electricity and gravity. Held down by mechanical downlocks

114
Q

How are the flaps extended when operating on battery power?

A

Alternate flap extension using electrics

115
Q

Are the radios powered on battery power?

A

Yes

116
Q

Can we complete an instrument approach on battery power?

A

ILS
LOC
VOR
NDB

117
Q

How is pressurisation managed on battery power?

A

Manually

118
Q

Does the fuel quantity indicating system and cross feed work on battery power?

A

Fuel quantity indicating system = yes
Cross feed = yes
We can’t cross feed using pumps, but can using gravity

119
Q

Approach on Standby power, Generator drive light illuminates. Can the generator be disconnected?

A

Yes

120
Q

When the ignition control panel is in AUTO, what is provided?

A

Whenever in Auto the EEC’s will give ignition whenever Boeing logic decides
On start, auto relight ect

121
Q

What are the reasons for CONT ignition?

A

Volcanic Ash
Moderate to Heavy Rain
Icing Conditions
Moderate to Severe Turbulence
Contaminated Runway - Standing Water/Slush

122
Q

When CONT ignition is selected what happens to the engine RPM?

A

Approach idle

123
Q

When Ignitions are select to FLT, how many igniters are working?

A

2, no matter what is selected

124
Q

What are the 3 reasons the EICAS screens can blank?

A

Loss of normal AC power
Dual CRT failure
Loss of both EICAS computers

125
Q

With both EICAS computers working normally and the EICAS computers in AUTO, what is producing the symbology for the upper EICAS screen?

A

Left EICAS computer

126
Q

How do we view the secondary page of EICAS messages?

A

Press Cancel

127
Q

If we have 3 warnings on page 1 of EICAS, will they display on page 2?

A

Yes, displayed until fixed

128
Q

What is the order of EICAS warnings/cautions/advisory’s?

A

Recency

129
Q

How can we identify an EICAS advisory?

A

Indented
No Caution beep
No glare shield caution

130
Q

If we lose a single CRT, what happens to the information?

A

Compacted to single screen

131
Q

In compacted format what happens to the primary instrument display?

A

They look the same, just smaller

132
Q

In a compacted format, how many EICAS messages are displayed?

A

11

133
Q

In a compacted format how to we check Status messages in flight?

A

We can’t, they’re inhibited

134
Q

Which logic inhibits the status messages in flight?

A

Main gear logic

135
Q

What systems utilise the nose gear logic?

A

Warning Inhibit
Caution Inhibit
Stall Warning

136
Q

When does the oil pressure light come on in flight?

A

Less than 10psi

137
Q

What does the FMC light indicate?

A

Message on the scratchpad

138
Q

Low oil pressure on the right engine would show on the EICAS as?

A

Amber

139
Q

What is the green tick on the EICAS

A

Pilot commanded thrust

140
Q

What is the amber tick on the EICAS?

A

Max Thrust

141
Q

What is the red line on the EICAS?

A

EEC is taking control to remove fuel and prevent un-contained engine failure

142
Q

If operating in VNAV, what is controlling thrust?

A

FMC

143
Q

What is the maximum temperature of the engine on takeoff? Max continuous?

A

960 and 925

144
Q

How long can we operate single engine at max takeoff thrust?

A

10 minutes

145
Q

How many events can Boeing record?

A

As many as it wants. We can only record 1

Oral Questions (1 decks)

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