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737 Systems > Flight Instruments / FMS / Autoflight > Flashcards

Flight Instruments / FMS / Autoflight Flashcards

1
Q

What does a flashing red or amber A/P Disengage Light indicate?

A
  • Red A/P has disengaged
  • Amber A/P has reverted to CWS pitch or roll while in CMD (Existing mode was deselected without engaging another mode)
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2
Q

What is indicated by the STAB OUT OF TRIM Light?

A

The autopilot is not trimming the stabilizer properly

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3
Q

What are the default A/P modes for roll and pitch?

A

CWS R and CWS P

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4
Q

What is indicated by the “MA” light illuminated above a F/D Switch?

A

The related FCC is the “master”, controlling F/D modes for both sides

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5
Q

How is the master FCC determined?

A
  • A/P not engaged in CMD First F/D turned on is the master
  • A/P engaged in CMD FCC for the first A/P in CMD is the master, regardless of which F/D was turned on first
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6
Q

When will both “MA” lights be illuminated?

A

When each FCC is independently controlling modes for the related F/D (TO, GA, or APP w/ LOC + GS captured). This only occurs with both F/D Switches ON and A/P not engaged in CMD.

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7
Q

If TO/GA is engaged prior to commencing takeoff roll, what pitch commands are displayed by the Flight Directors?

A

10° nose down until 60K, then 15° nose up until a sufficient climb rate is established after lift-off, then they will command MCP speed (V2) + 20K

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8
Q

If F/D Switches are OFF, when can TO/GA be engaged for takeoff?

A

After 80K, below 2000’ AGL and prior to 150 seconds after lift-off

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9
Q

If F/D Switches are OFF, when can TO/GA be engaged for takeoff?

A

After 80K, below 2000’ AGL and prior to 150 seconds after lift-off

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10
Q

If TO/GA is engaged for takeoff, which roll mode will be engaged?

A

HDG SEL, with bank automatically limited to 8° below 400’ AGL (10° - 30° will be selectable above 400’)

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11
Q

If A/T is armed for takeoff and TO/GA Switch is pressed, what commands are sent to the A/T?

A

• Initially N1 mode, then
• THR HLD at 84K, then
• ARM at 800’ RA, signifying that climb thrust can be manually selected with N1
Switch

However, automatic reduction to climb thrust occurs upon reaching the REDUCTION altitude shown on FMC TAKEOFF REF page 2/2.
When thrust reduction is commanded (manually or automatically), N1 is displayed in the FMA and CLB is displayed above the N1 indicators.

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12
Q

How can takeoff mode be terminated?

A
  • Below 400’ RA, turn both F/Ds off

* Above 400’ RA, select another pitch mode or engage autopilot

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13
Q

What conditions must be met for go-around mode to engage when TO/GA Switch is pressed?

A

Below 2000’ RA with flaps extended or GS captured (and not in takeoff mode)

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14
Q

If TO/GA is engaged for a two-engine go-around, what pitch commands are displayed by the Flight Directors?

A
  • 15° nose up until programmed rate of climb is reached, then
  • Target airspeeds for each flap setting
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15
Q

If TO/GA is engaged for a two-engine go-around, what roll commands are displayed by the Flight Directors?

A
  • Approach ground track at time of engagement (Roll FMA will be blank)
  • U10.6 “TOGA to LNAV” feature will stay in LNAV if lateral track displayed ahead of aircraft and LNAV is engaged when TO/GA selected
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16
Q

If TO/GA is engaged for a two-engine go-around, what roll commands are displayed by the Flight Directors?

A
  • Approach ground track at time of engagement (Roll FMA will be blank)
  • U10.6 “TOGA to LNAV” feature will stay in LNAV if lateral track displayed ahead of aircraft and LNAV is engaged when TO/GA selected
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17
Q

What thrust will be commanded if A/T is armed when TO/GA Switch is pressed for a go-around?

A
  • First press reduced go-around N1 ( for 1000 – 2000 fpm climb)
  • Second press* full go-around N1
  • After A/T reaches reduced go-around thrust
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18
Q

How can go-around mode be terminated?

A
  • Below 400’ RA, turn both F/Ds off

* Above 400’ RA, select another pitch or roll mode

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19
Q

If TO/GA is engaged for a single-engine go-around, what pitch commands are displayed by the Flight Directors?

A

• 13° nose up until climb rate increases, then pitch commands maintain a target speed

• Target speed:
‣ If engine failure occurs prior to, or within 10 seconds of, GA engagement, then selected MCP speed is target speed
‣ If engine failure occurs after 10 seconds and within 5 knots of GA engagement speed, existing speed at time of GA engagement is target
‣ If engine failure occurs after 10 seconds and more than 5 knots above GA engagement speed, current airspeed is target

Target speed is never less than V2 based on flap position unless in windshear.

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20
Q

If TO/GA is engaged for a single-engine go-around, what pitch commands are displayed by the Flight Directors?

A

• 13° nose up until climb rate increases, then pitch commands maintain a target speed

• Target speed:
‣ If engine failure occurs prior to, or within 10 seconds of, GA engagement, then selected MCP speed is target speed
‣ If engine failure occurs after 10 seconds and within 5 knots of GA engagement speed, existing speed at time of GA engagement is target
‣ If engine failure occurs after 10 seconds and more than 5 knots above GA engagement speed, current airspeed is target

Target speed is never less than V2 based on flap position unless in windshear.

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21
Q

How can APP mode be exited if LOC and GS are both captured?

A
  • Press TO/GA Switch, or
  • Turn off A/P and both F/Ds, or
  • Retune a VHF NAV receiver
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22
Q

The Bank Angle Selector sets maximum bank angle for AFDS operation in __________ or __________ modes.

A

HDG SEL, VOR (no effect on LNAV or LOC modes)

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23
Q

What is capture criteria for LNAV roll mode to intercept and track the active FMC route?

A
  • Must be within 3 nm of active route segment on any heading, or
  • If outside 3 nm, must be on an intercept course of 90° or less and intercept the route segment before the active waypoint
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24
Q

If windshear is encountered during F/D takeoff or go-around, what pitch commands are displayed by the Flight Directors?

A
  • V2+20 until vertical speed decreases to approximately +600 fpm, then
  • 15° nose up until stick shaker, then
  • Pitch attitude which will result in intermittent stick shaker
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25
Q

If windshear is encountered during F/D takeoff or go-around, what pitch commands are displayed by the Flight Directors?

A
  • V2+20 until vertical speed decreases to approximately +600 fpm, then
  • 15° nose up until stick shaker, then
  • Pitch attitude which will result in intermittent stick shaker
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26
Q

What is indicated by an amber horizontal line through the frequency or course on the Approach Reference display on the PFD?

A

Disagreement between tuned frequencies or selected courses

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27
Q

When the Expanded Localizer Scale is displayed, what is indicated by the rectangles at the left/right limits of the display?

A

1⁄2 dot deviation

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28
Q

What is indicated by an amber DISPLAYS CONTROL PANEL message?

A

Related EFIS Control Panel has failed

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29
Q

What is indicated by an amber INSTR SWITCH message?

A

IRS Transfer Switch on overhead panel not in NORMAL

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30
Q

What is indicated by an amber DSPLY SOURCE message?

A

A single DEU has been selected (manually or automatically) to drive all six DUs

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31
Q

What is indicated by a white CDS MAINT message?

A

A dispatchable CDS fault has occurred

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32
Q

What is indicated by an amber CDS FAULT message?

A

A non-dispatchable CDS fault has occurred

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33
Q

What is indicated by an amber CDS FAULT message?

A

A non-dispatchable CDS fault has occurred

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34
Q

What drives the HUD flight director?

A
  • NP or AI HUD F/D driven by CDS F/D guidance

* AII or AIII HUD F/D driven by CDS F/D guidance until LOC + GS captured, then HUD computer guidance

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35
Q

If AI is the armed HUD mode, when will it engage?

A

At LOC & GS capture

36
Q

If AII or AIII is the armed HUD mode, when will it engage?

A

At LOC & GS capture if HUD guidance criteria satisfied
Note: AIII will not engage later than about 7 seconds prior to reaching 500’ AGL.

3DM> On HGS 4000, AIII mode may not arm or become active until nearing LOC/GS Capture (HUD 2020 installed on 3AA-3DL may be armed at almost any time in flight). Once armed, AIII becomes active when Approach on Course (AOC) criteria satisfied:
• Both Nav radios tuned to valid ILS
• LOC/GS Captured (LOC 500’
• MAG TRK and selected CRS difference

37
Q

If AII or AIII is the armed HUD mode, when will it engage?

A

At LOC & GS capture if HUD guidance criteria satisfied
Note: AIII will not engage later than about 7 seconds prior to reaching 500’ AGL.

3DM> On HGS 4000, AIII mode may not arm or become active until nearing LOC/GS Capture (HUD 2020 installed on 3AA-3DL may be armed at almost any time in flight). Once armed, AIII becomes active when Approach on Course (AOC) criteria satisfied:
• Both Nav radios tuned to valid ILS
• LOC/GS Captured (LOC 500’
• MAG TRK and selected CRS difference

38
Q

The Pitch Limit Indicator and TCAS RA “regions to avoid” Pitch Commands are referenced to the __________ on the PFD, while on the HUD they are referenced to the __________.

A

Airplane Symbol

Flight Path Vector

39
Q

When does the FPV first appear on the HUD during takeoff?

A

50’ AGL

40
Q

When is tailstrike monitoring active during the approach?

A

At 300’, 150’, and 75’ RA

41
Q

What is indicated on the HUD runway remaining display as the aircraft approaches the end of the runway?

A
  • 3000’ remaining Box appears around the numerical value
  • 2000’ remaining Box begins to flash
  • 1000’ remaining Runway remaining is removed
42
Q

What is indicated on the HUD runway remaining display as the aircraft approaches the end of the runway?

A
  • 3000’ remaining Box appears around the numerical value
  • 2000’ remaining Box begins to flash
  • 1000’ remaining Runway remaining is removed
43
Q

What is the function of the FMCs with FMC Source Select Switch in NORMAL?

A

• Left FMC is master
‣ Controls CDUs
‣ Provides input to autopilot & autothrottle
‣ Allocates navaid tuning between FMCs
‣ Processes ACARS messages

  • Right FMC operates in sync with Left FMC
  • Both FMCs provide info for map displays (composite)
44
Q

What is the function of the FMCs with FMC Source Select Switch in BOTH ON L?

A

• Selects Left FMC for all FMC operations

45
Q

What is the function of the FMCs with FMC Source Select Switch in BOTH ON R?

A

• Selects Right FMC for all FMC operations

46
Q

What is indicated by the FAULT Light on the IRS Mode Selector Unit?

A

IRS failure

47
Q

What is the function of the IRS Transfer Switch?

A

Selects which IRS provides attitude and heading info for each pilot

48
Q

If the IRS Transfer Switch is out of the NORMAL position, is autopilot engagement possible?

A

Yes, if both IRSs are functional

Switch may be in any position, but both IRSs must be operative for AP engagement

49
Q

How long will the Right IRS continue to operate following loss of AC power?

A

5 minutes

50
Q

What is indicated by the IRS ON DC Light?

A

Related IRS operating on DC power from Switched Hot Battery Bus
(AC power not normal)
If on the ground, a horn in the nose wheel well sounds to provide an alert that a battery drain condition exists.

51
Q

Is it normal for this light to illuminate momentarily during alignment self-test?

A

Yes

52
Q

Is it normal for this light to illuminate momentarily during alignment self-test?

A

Yes

53
Q

What is indicated by a flashing ALIGN Light?

A
  • An unreasonable present position has been entered, or

* No present position has been entered

54
Q

What is indicated by a steady ALIGN Light?

A
  • Alignment is progressing normally, or

* IRS is operating in initial ATT mode or shutdown cycle

55
Q

What is indicated by the GPS Light?

A

Failure of both GPS sensor units

In M/C Recall, it indicates failure of a single GPS sensor unit

56
Q

When does the flight recorder operate?

A
  • On ground Either engine operating

* In flight AC power available

57
Q

When does the flight recorder operate?

A
  • On ground Either engine operating

* In flight AC power available

58
Q

How is the Cockpit Voice Recorder test accomplished on 3AA-3DL?

A
  • Press TEST Switch
  • Check Monitor Indicator remains in GREEN BAND until switch released
  • A tone may be heard through a headset plugged into the headset jack while the TEST Switch is depressed.
59
Q

How is the Cockpit Voice Recorder test accomplished on 3DM and subsequent?

A
  • Press TEST Switch and hold for 5 seconds
  • Check STATUS Light flashes once
  • A tone may be heard through a headset plugged into the headset jack while the TEST Switch is depressed.
60
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):
When will lateral deviation scales be displayed at the bottom of the PFD?

A

When you have any roll mode other than APP or LOC selected. The deviation scales are not optional, as they do not have an ON/OFF switch.

61
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

When will lateral deviation scales be displayed at the bottom of the PFD?

A

When you have any roll mode other than APP or LOC selected. The deviation scales are not optional, as they do not have an ON/OFF switch.

62
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

When will vertical deviation scales be displayed on the right side of the PFD?

A

When VNAV is engaged

63
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is represented by the lateral and vertical NPS deviation scales (outer white “tick marks”)?

A

RNP

64
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is represented by the gap between the scales and the centered rectangular symbol?

A

Flight Technical Error (FTE). The scale is typically set automatically by selecting the approach from the FMC, and represents “maneuvering space” or “wiggle room” within the RNP “tube” — the difference between RNP and ANP. The gap will tighten as the RNP value reduces.

65
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is the minimum certified RNP value of NPS?

A

RNP 0.10nm, although our minimum RNP value has not changed and remains no less than 0.11nm.

66
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is the minimum certified RNP value of NPS?

A

RNP 0.10nm, although our minimum RNP value has not changed and remains no less than 0.11nm.

67
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is indicated by the Actual Navigation Performance (ANP) Bars (“slider bars”)?

A

Lateral/vertical indication of available Flight Technical Error (FTE) remaining, based on total system error. ANP bars grow inward with increasing ANP.

68
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

When will ANP bars be displayed?

A
  • Lateral bars can be displayed in all phases of flight

* Vertical bars can be displayed only after reaching the Top of Descent (T/D) point

69
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is indicated when the bars touch at the center of the scale?

A

ANP equals RNP

70
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is indicated by the NPS Pointers (magenta “triangles”)?

A

Lateral/vertical paths (magenta line) relative to the airplane

71
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What happens if the NPS pointer drifts into the ANP bar area (i.e. “gap” exceeded) for 10 continuous seconds?

A

ANP bars turn amber and NPS pointer flashes for 10 seconds

72
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

In addition to deviation within ANP bar limits for 10 continuous seconds, what other conditions cause ANP bars to turn from white to amber?

A

Full scale deflection of the NPS pointer (pointer goes hollow) ANP equals or exceeds RNP (i.e. bars touch)

73
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

How is the Vertical Situation Display (VSD) selected?

A

Press the center map EFIS control button twice

74
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

When is the FMC Approach Glide Path Angle Line (solid magenta) displayed on the VSD?

A

When flying approaches with a designated approach angle

75
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is the anchor point for the FMC Approach Glide Path Angle Line?

A

Missed approach waypoint

76
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

When is the 3-Degree Reference Line (dashed blue) displayed on the VSD?

A

When flying approaches that do not have a designated approach angle

77
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is the anchor point for the 3-Degree Reference Line?

A

Runway threshold

78
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What caution should be observed when using the 3-Degree Reference Line?

A

The line is for reference only, and may intersect terrain

79
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

How far do the FMC Approach Glide Path Angle Lines and 3-Degree Reference Lines extend?

A

10 NM

80
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

How far do the FMC Approach Glide Path Angle Lines and 3-Degree Reference Lines extend?

A

10 NM

81
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is represented by the white and amber Decision Gates displayed on the FMC Approach Glide Path Angle Lines and 3-Degree Reference Lines?

A

1000’ (white) and 500’ (amber) above field elevation

82
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is indicated by the Vertical Flight Path Vector (solid white line) on the VSD?

A

Current flight path angle as a function of vertical speed and ground speed

83
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is indicated by the MCP Selected Vertical Speed line (dashed magenta) on the VSD, and when is it displayed?

A

Selected vertical speed as a dashed target line, displayed when MCP V/S mode is selected

84
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is indicated by the Range to Target Speed Dot (RTSD)?

A

Where the airplane will achieve FMC or MCP target speed

85
Q

For aircraft equipped with Navigation Performance Scales (NPS) / Vertical Situation Displays (VSD) (3KU>):

What is represented by the color coding on the VSD Terrain Profile Line?”

A

Same as that used to depict EGPWS terrain on the lateral map:
Green Terrain more than 500’ below (250’ below if gear down)
Amber Terrain 500’ below (250’ below if gear down) – 2000’ above
Red Terrain more than 2000’ above

737 Systems (12 decks)

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