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ATLAS B744 > FLIGHT MANAGEMENT SYSTEM > Flashcards

FLIGHT MANAGEMENT SYSTEM Flashcards

1
Q

When do the ILS receivers tune and the frequency and course display after you select an ILS while inbound to the landing airport?

A
  • When the airplane is within 150 nm of the destination airport.
  • When within 50 nm of T/D
  • When in FMC descentFCOM, 11.20.5
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2
Q

How long is ILS autotuning inhibited after takeoff?

A

• 10 minutes (prevents clutter on the PFD)

FCOM, VOL 2; 11.20.5

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3
Q

How could you autotune a new approach frequency during the 10-minute autotune inhibit period?

A

• Select and execute a new approach in the active flight plan.

FCOM, VOL 2; 11.20.5

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4
Q

If the tuned frequency of a navigation station, or an incorrect identifier displays, instead of the correct Morse code identifier, what should you do?

A

• Verify the identity of the tuned navigation station from
the audio Morse code from the radio tuning panel.

FCOM, VOL 2; 11.20.6

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5
Q

In what transponder modes will the transponder activate beacon and altitude reporting to ATC, when in flight?

A
  • XPNDR
  • TA ONLY or TA/RA.FCOM, VOL 2; 11.20.7
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6
Q

Can ATC monitor airplane position on the ground when the transponder is in STBY or OFF?

A

• No

FCOM, VOL 2; 11.20.7

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7
Q

Can clear air turbulence be sensed by weather radar?

A

• No, turbulence can only be sensed when there is sufficient
precipitation.

FCOM, VOL 2; 11.20.8

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8
Q

How many FMS’s and how many FMCs are provided?

A
  • One FMS (flight management system)
  • Two FMCs (flight management computers L and R)FCOM, VOL 2; 11.30.1
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9
Q

How many hours could you meet the requirements for navigation if you had two IRUs, one FMC, and two CDUs as the sole means of navigation?

A

• 18 hours

FCOM, VOL 2; 11.30.2

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10
Q

When does the approach phase of the FMS start?

A
  • When the first waypoint of the of the procedure sequences, and
  • the runway is the active waypoint and the distance to go is less than 25nm.FCOM, VOL 2; 11.31.2
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11
Q

When will the FMC fail to sequence the active waypoint?

A

• When more than 21 nm off the active route and not on an
offset route.

FCOM, VOL 2; 11.31.3

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12
Q

What factor determines “Econ” speed?

A

• Cost index

FCOM, VOL 2; 11.31.4

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13
Q

Explain the concept of cost index?

A

• Cost index is the relationship of fuel versus time.
• A low cost index causes a minimum fuel, lower cruise speed,
and maximizes range.
• High cost index causes a minimum time speed schedule within
the flight envelope.

FCOM, VOL 2; 11.31.4

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14
Q

What is a conditional waypoint?

A

• A conditional waypoint is based on a time or altitude
requirement, and not based on a land reference.
• ie., “when reaching 4,000 feet.”

FCOM, VOL 2; 11.31.5; 11.31.5

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15
Q

What determines present position of the airplane, and where on the ND is it displayed?

A
  • Calculated from the IRS with updates from NAV radios.
  • Apex of the white triangle on the ND.FCOM, VOL 2; 11.31.7/10.40.14
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16
Q

How is FMC position updated?

A

• On the ground, IRS and/or GPS data.
• In flight, IRS is updated by GPS or Nav radio radio source data
to compensate for inertial reference errors.
• Priority is based on the availability of valid data
from these sources.

FCOM, VOL 2; 11.31.7

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17
Q

How is the FMC updated during an ILS/LOC approach?

A

• Localizer signals (LOC, LOC DD, LOC VD, LOC GPS.)

FCOM, VOL 2; 11.31.7

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18
Q

What does a “VD” FMC radio position update status indicate and where is it displayed?

A
  • VOR and its collocated DME update the FMC.
  • Lower right hand corner of the ND, in green.FCOM, VOL 2; 11.31.7/10.10.34/45
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19
Q

When does the FMS enter polar operation conditions?

A

• When the FMC calculated airplane position passes north of 84
north or south of 84 south. (FMCs revert to split IRS.)

FCOM VOL 2 11.31.9

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20
Q

When would you ever select the “TRUE” position on the Heading Reference switch?

A

• For autopilot operations in high latitudes using a roll mode other than LNAV.

FCOM, VOL 2; 11.31.9

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21
Q

When does the heading reference for PFDs, NDs, and RMI change to true north?

A
  • At 82N (or north of 73N between 80W and 170W)
  • At 82S (or south of 60S between 120E and 160 E)
  • Provides no reference for RMI and AFDS roll modes other than LNAV.FCOM VOL 2 10.10.59
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22
Q

When armed for takeoff, when does VNAV activate?

A

• 400 feet

FCOM, VOL 2; 11.31.23

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23
Q

What VNAV climb profiles are used by VNAV and displayed in the pitch mode FMA during climb?

A
  • VNAV SPD
  • VNAV PTHVCOM, VOL 2; 11.31.24
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24
Q

What VNAV climb mode would display on the FMA during departure waypoint constraints?

A

• VNAV PTH

FCOM, VOL 2; 11.31.24

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25
Q

If the FMC cruise altitude is FL 250 and the clearance altitude, FL 190 is set in the MCP, what pitch mode FMA will display when FL 190 is captured?

A

• VNAV ALT

FCOM, VOL 2; 11.31.25

26
Q

What is the end of descent point (E/D) for VOR approaches?

A

• The missed approach point, which may be the VOR, runway
waypoint, or a named waypoint.

FCOM, VOL 2; 11.31.31

27
Q

What is the end of descent point (E/D) for all approaches other than VOR approaches?

A

• 50 feet above the runway threshold (RW Waypoint).

FCOM, VOL 2; 11.31.31

28
Q

When does the FMC transition to “on approach” logic?

A

• The descent phase is active and flaps out of up.
• The aircraft has sequenced the first waypoint, of the active nav data
base approach,
• The aircraft is less than 12 nm from the destination airport ,on a
Direct-to or intercept-to the active waypoint, and a manually entered
end of descent altitude constraint is lower than the airport elevation
plus 500’,or
• The runway or missed approach point is the active waypoint and the airplane is within
25 neofascist the runway.

• A VFR approach is created and the airplane has sequenced the
FAXXX, or the airplane is enroute to a direct-to or intercept-to the
RWYYY waypoint and the airplane is within 25 nm of the runway
threshold.
• A published instrument approach has been selected and incorporated
into the active flight plan and the airplane has sequenced the first
waypoint on the published approach.

FCOM, VOL 2; 11.31.36

29
Q

If you are flying an approach with the FMC in “on approach” logic, and the airplane rises more than 150 feet above the path, the FMA pitch mode will change from VNAV PTH to what pitch mode display?

A

• VNAV SPD

FCOM, VOL 2; 11.31.37

30
Q

What condition or feature of the FMC allows us to set missed approach altitude while in a VNAV PTH, allowing us to continue descent on approach?

A

• “on approach” logic.

FCOM, VOL 2; 11.31.37

31
Q

When you execute the missed approach, what altitude becomes the new cruise altitude?

A

• The highest altitude in the missed approach procedure.

FCOM, VOL 2; 11.31.38

32
Q

What thrust mode would you see on upper EICAS following an engine failure at V1 and the airplane has accelerated to VREF + 98 knots, flaps retracted?

A

• CON (continuous), the planed thrust reduction point is inhibited.

FCOM, VOL 2; 11.31.40; 11.32.2

33
Q

What two databases are contained in the FMC?

A
  • Performance
  • NavigationFCOM, VOL 2; 11.32.1
34
Q

What could happen if you advance the thrust levers further during a T0 1 or TO 2 fixed derate, following an engine failure?

A

• Loss of directional control.

FCOM, VOL 2; 11.32.3

35
Q

Can you manually apply more thrust, when conditions are necessary, during an assumed temperature thrust reduction takeoff?

A

• Yes, because the assumed temperature thrust setting is not
considered a limitation.

FCOM, VOL 2; 11.32.3

36
Q

During climb, at what altitude does CLB 1 or CLB 2 derated thrust begin to increase linearly and at what altitude would CLB thrust be achieved?

A
  • 10,000 feet is when derated thrust begins to increase, and
  • 15,000 feet is when CLB thrust is achieved.FCOM, VOL 2; 11.32.3
37
Q

What fuel value is usually used by the FMC for performance calculations?

A

• CALC (calculated)

FCOM, VOL 2; 11.32.4

38
Q

If you lose electrical power to the FMC, and then returns, do you have to re- enter performance data on the PERF INIT page?

A

• Yes

FCOM, VOL 2; 11.32.5

39
Q

Is the autothrottle available during dual FMC failure?

A

• No

FCOM, VOL 2; 11.32.6

40
Q

Are LNAV and VNAV available in alternate navigation?

A

• No

FCOM, VOL 2; 11.50.1

41
Q

What CDU pages are available during Alternate Navigation?

A
  • ALTERNATE NAVIGATION LEGS
  • ALTERNATE NAVIGATION PROGRESS
  • ALTERNATE NAVIGATION RADIOFCOM, VOL 2; 11.50.2
42
Q

If the

A

• Push the LEGS key, the PROG key, and the NAV RAD key.

FCOM, VOL 2; 11.32.6

43
Q

Is it OK for the pilots to enter information in both CDUs at the same time?

A

• No, avoid this practice.

FCOM, VOL 2; 11.40.1

44
Q

What is meant by the DRAG/Fuel Flow (FF) values in line 3L of the CDU Identification page?

A

• Drag and fuel flow correction factors.

FCOM, VOL 2; 11.40.6

45
Q

What happens when an active database expires in flight?

A

• The expired database is used until the active date is changed after
landing.

FCOM, VOL 2; 11.40.7

46
Q

When do the ILS frequency and course and the word PARK display on the NAV/RAD page when en-route to the destination?

A

• ILS,LOC,Back Course or VOR, Runway or VFR approach to an
ILS equipped runway is selected, and
• Less than 200 NM from the T/D, or
• More than halfway to the destination.
• (Whichever represents the lesser distance to destination)
• PARK: when more than 200nm to T/D or less than half way
to the destination.

FCOM, VOL 2; 11.40.28

47
Q

What is the maximum thrust reduction limit in terms of percentage when using assumed temperature?

A

• 25%

FCOM, VOL 2; 11.40.35

48
Q

When entering a thrust reduction (THR) HAA value in the FMC Takeoff REF page, do you have to add field elevation to the value?

A

• No, the FMC adds runway elevation to the entered HAA thrust
reduction height, causing thrust reduction at an MSL.

FCOM, VOL 2; 11.40.38

49
Q

How would the FMC handle a manually entered V1 speed less than V1MIN?

A

• The FMC would display “V1MIN” in small font on the data line, and
V1MIN In large font .

FCOM, VOL 2; 11.40.39

50
Q

On the legs page, does the INTCPT COURSE line at 6R mean TO or FROM the active waypoint in 1L?

A

• TO the waypoint.

FCOM, VOL 2; 11.41.11

51
Q

What system logic features of the FMC Arrivals page allow a quick air turn back to the origin airport?

A

• The arrivals page allows access without changing the destination
on the route page.
• Less than 400 miles from the origin, and while nearer to the origin
than the destination, pushing the DEP ARR key displays the ARRIVALS
page for the origin airport.

FCOM, VOL 2; 11.41.21

52
Q

Can the FMC display engine out performance limitations based on two engines out?

A

• Yes. Two engine out max cruise ALT is displayed at 4R.

FCOM, FCOM, VOL 2; 11.42.6

53
Q

On what page of the CDU could you find elevation for an airport in the database?

A

• Reference Navigation Data Page.

FCOM, VOL 2; 11.42.9

54
Q

What is the difference between RNP and ACTUAL? Where is it displayed?

A
  • RNP is required navigation performance
  • ACTUAL is Actual Aircraft Navigation Performance
  • Displayed on FMC POS REF page 2.FCOM, VOL 2; 11.42.11
55
Q

Can you make manual entries to RNP or ACTUAL values?

A

• Manual entries can be made to RNP only. (displays in large font).

FCOM, VOL 2; 11.42.11

56
Q

On what page of the CDU could you enter the altitude or fight level where anti-ice is to be first turned on during the descent?

A

• The Descent Forecast Page line 1R.

FCOM, VOL 2; 11.43.6

57
Q

If, while loading an approach to the destination during cruise flight, you subsequently push, the 6R key “APPROACH Intercept (INTC),” and then execute, what would become the active waypoint? What would happen to any other pages or waypoints previously loaded?

A
  • The approach intercept fix would become the active waypoint.
  • All other waypoints previously loaded would be deleted.

FCOM, VOL 2; 2.11.43.13

58
Q

On what page of the CDU could you find runway length for the selected Runway?

A

• Approach Reference Page, at line 4L.

FCOM, VOL 2; 11.43.18

59
Q

What teardrop offset angle is used by the “Holding” page?

A

• 40 degrees

FCOM, VOL 2; 11.43.20

60
Q

What is commanded by pushing the MCP Altitude Selector switch?

A

• Initiates an “early descent”, when within 50 NM of the top of
descent point. VNAV starts an early descent and captures the idle
descent path. VNAV SPD displays on the FMA pitch mode.
• Initiates a cruise descent when more than 50 nm from top of
descent point. VNAV begins a cruise descent to the new cruise
altitude, and may not capture the idle descent path.
• Initiates a climb or descent toward the altitude set in the MCP
altitude window, when in VNAV PTH or VNAV ALT pitch mode.
• During climb or descent with altitude constraints, each push
deletes the next waypoint constraint.
• During climb with no altitude constraints, and the altitude
window set above the FMC cruise altitude, changes cruise
altitude to the altitude window value.

FCOM; VOL 2; 4.10.13; 11.31.25; 11.31.34

61
Q

When flying an instrument approach with a PROC HOLD header displayed at line 1L, do you have to select EXIT HOLD and then EXECUTE in order to exit the holding pattern?

A

• No, the FMC automatically commands an exit from the hold when the
holding pattern is designed as a course reversal in lieu of a procedure turn.

FCOM, VOL 2; 11.43.22

62
Q

Which waypoints are referenced and displayed in magnetic and which waypoints are displayed in true on the alternate navigation LEGS pages?

A
  • Only the active waypoint is referenced to magnetic north.
  • All subsequent waypoint courses are true courses.FCOM, VOL 2; 11.50.2

ATLAS B744 (21 decks)

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