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Boeing 747 > Flight Instruments/Displays > Flashcards

Flight Instruments/Displays Flashcards

1
Q

Airspeed Trend indication

A

Predicted airspeed in 10 seconds based on current acceleration or deceleration

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2
Q

When does current airspeed box turn amber?

A

Current airspeed less than maneuvering speed

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3
Q

Indication from Maximum Airspeed Tape?

A

Max airspeed in relation to the lowest of:

  • VMO/MMO
  • Landing Gear Speed
  • Flap Speed
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4
Q

Pitch Limit Indication

A
  • pitch limit of speed shaker activation for current conditions
  • max +30º
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5
Q

When does LOC and G/S pointer turn solid

A

Within 2 1/3 dot of center

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6
Q

EFIS/EICAS Interface Unit (EIU)/IRS/Air Data Source Selector Priority in AUTO

A

CA: LEFT/CENTER/RIGHT

FO: RIGHT/CENTER/LEFT

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7
Q

How many display units?

A

6 Display Units (DUs)

  • 2 PFDs, (CA and FO)
  • 2 NDs (CA and FO)
  • Upper EICAS
  • Lower EICAS
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8
Q

How is aircraft system information supplied to the Display Units (DUs)?

A

3 identical EFIS/EICAS Interface Units (EIUs)

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9
Q

Display Unit Switching Priority

A
  • PFD over ND

- Upper EICAS over LOWER EICAS

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10
Q

Power Source for Integrated Standby Flight Display (ISFD)

A

Main Battery Bus

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11
Q

Dashes replacing information on PFD

A

Information in unavailable

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12
Q

Components of Air Data Computer Systems

A
  • 2 or 3 Air Data Computers (ADCs); (L and R) or (L, C, and R)
  • 4 pitot tubes (Upper L, Lower L, Upper R, Lower R)
  • 4 static sources (Main L, Main R, Alt L, Alt R)
  • 2 Angle of Attack vanes (AOAs)
  • 2 Total Air Temperature probes (TATs)
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13
Q

What supplies supplies Heading Info to the ND?

A

Selected Inertial Reference Unit (IRU)

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14
Q

When does Heading reference True North?

A

When aircraft is North of 82º N latitude or South of 82º S latitude

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15
Q

Position Trend Vector Intervals

A
  • UP to 3 segments depending on MAP range
  • each segment is 30 sec
  • 30 sec, 60 sec, 90 sec
  • based on bank angle and ground speed
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16
Q

VNAV PATH scale indication

A
  • displayed during descend only with selected VNAV PATH

- +/- 400’ deviation

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17
Q

Types of EICAS messages

A

1) alert messages
2) memo messages
3) Status messages

18
Q

Priority levels of alert messages

A
  • Warning
  • Caution
  • Advisory
19
Q

Where is the most recent EICAS message displayed?

A

At the top of its priority group

20
Q

Where is the most recent Memo displayed

A

At the bottom of the memo messages

21
Q

What is a Memo message and where are they displayed?

A
  • EICAS memo messages are crew reminders of certain flight crew selected normal conditions
  • They display in white at the bottom of the last page of EICAS alert messages on the primary EICAS display.
22
Q

What does the Status Cue mean and what color?

A
  • new EICAS message exists
  • inhibited from engine start to 30 mins after lift off
  • color cyan
23
Q

EIU selector in AUTO

A
  • selects an operable EIU to provide data to EFIS and EICAS

* Selects left, then center, then right

24
Q

What does pushing the RECALL button do

A
  • redisplays all caution and advisory EICAS messages, when respective non-normal condition exists
  • displays first page of messages when multiple pages exist
  • redisplays red box for parameters previously exceeded
  • displays RECALL indication for one second after switch released
25
Q

What alert displays are shown or displayed on the PFD?

A
  • TCAS
  • Windshear
  • GPWS
26
Q

With a TCAS RA, where do you position the airplane symbol on the PFD?

A

Traffic avoidance is ensured by adjusting or maintaining a pitch attitude outside the red outlined RA pitch region

27
Q

How many events can the EICAS Event Record Switch record?

A

Up to 5 events

28
Q

Which type of EICAS messages are listed in the DDG

A

EICAS Status messages

29
Q

Which engines activate CONFIG EICAS messages if airplane is not configured?

A

Engines 2 and 3

30
Q

Conditions for Takeoff CONFIG EICAS Warning

A
  • flaps not in a takeoff position
  • body gear not centered
  • parking brake set
  • Speedbrake lever not in DN detent
  • stabilizer trim not in takeoff range
31
Q

Conditions for CONFIG GEAR EICAS Warning message

A

the airplane is in flight and any landing gear is not down and locked with:

  • any Thrust lever is closed and radio altitude is less than 800 ft, or
  • flaps in a landing position (flaps 25 or more)
32
Q

When does the c-chord sound prior to selected altitude?

A

900’ prior to selected altitude

33
Q

What activates ALTITUDE ALERT?

A

Departing selected altitude by 300’

34
Q

GPWS features

A
  • look ahead terrain alerts
  • predictive windshear alerts
  • immediate windshear alerts
  • bank angle voice alerts
  • immediate alerts for potentially hazardous flight conditions involving impact with the obstacles and the ground
  • approach altitude callouts
35
Q

GPWS Warning and Caution projected impact time

A

Warning: 20 - 30 sec
Caution: 40 - 60 sec

36
Q

Master Caution light and beeper inhibition

A
  • 80 knots until 400’ or 20 secs after rotation
37
Q

When are New Predictive Windshear Warnings inhibited?

A

100 knts until 50 feet RA

38
Q

Master Warning and Bell inhibit for FIRE during takeoff

A

V1 to 400’ or 25 sec after V1

39
Q

N1 Redline vs N1 Amber Line

A

Red Line: N1 RPM Operating Limit (Overspeed)

Amber Line: Maximum N1 (limiting thrust in EEC Normal mode)

40
Q

What is the width of the command speed bug?

A

5 knots

41
Q

When is Pitch Limit Indicator displayed and what does it indicate

A
  • Flaps not up

- indicates pitch limit (maximum +30º)

42
Q

How do you blank Radio Mins/Baro Mins form PFD?

A

Radio Mins: Below 0

Baro Mins: Below -100

Boeing 747 (21 decks)

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