Systems - Automatic Flight

Question 1

What does the IAS/MACH window display when the FMC (VNAV) controls the speed?

Answer 1

Nothing, it is blank.

Question 2

In addition to the MCP Heading window, where else is Selected Heading displayed?

Answer 2

• PFD
• HUD
• ND

Question 3

What is the effect of the first push of the A/P disengage switch? And the second push?

Answer 3

• The AP disengages
• The Master Warning illuminates
• The Aural Warning sounds
• AUTOPILT DISC is displayed on the EICAS
• Resets EICAS message, Aural and Master Warnings if Autopilot was disconnected
• The second push: Resets the EICAS message, Aural and Master Warnings.

Question 4

List the methods of disconnecting the A/T.

Answer 4

Either by:

• Pushing the Autothrottle disconnect switch
• Moving the A/T ARM switch to OFF

Question 5

When does HOLD mode engage during take-off?

Answer 5

At 80 kts.

Question 6

To which AFDS modes does the bank limit selector apply?

Answer 6

• HDG SEL
• TRK SEL

Question 7

In the Flight Level Change (FLCH) mode, what will be the mode annunciation for A/T and pitch during climb and descent?

Answer 7

Climb - THR
Descent - Hold

Question 8

When are FLARE and ROLLOUT armed and engaged?

Answer 8

• Flare: armed at 1500’, engages at 60’-40’
• Rollout: armed at 1500’, engages at touchdown

Question 9

Until what point does ROLLOUT mode provide guidance?

Answer 9

Until A/P disengagement

Question 10

How can APP mode be disengaged before LOC or G/S capture?

Answer 10

By selecting APP, LNAV, VNAV or LOC

Also selecting both APs and FDs off.

Question 11

How can APP mode be disengaged when LOC captured and G/S armed?

Answer 11

By selecting HDG/TRK SEL or HDG/TRK HOLD

Also selecting both APs and FDs off.

Question 12

How can APP mode be disengaged when LOC and G/S captured?

Answer 12

• By selecting TO/GA
• By selecting APP above 1500’

Also selecting both APs and FDs off.

Question 13

In VNAV, which altitude will the AFDS capture during climb or descent; the one selected in the MCP ALT windows or FMS target altitude?

Answer 13

• During climb: the lower altitude
• During descent: the higher altitude

Question 14

If armed, at what height will VNAV engage during take-off?

Answer 14

• 400’

Question 15

During a VNAV climb, what will the FMA pitch mode annunciation be if the aircraft levels off at an intermediate altitude selected on the MCP?

Answer 15

VNAV ALT

Question 16

What is the maximum localizer intercept angle?

Answer 16

120 degrees

Question 17

What does a green box around an FMA mode mean?

Answer 17

Initial engagement of the mode, stays for 10 sec.

Question 18

What do the FD bars command at take-off prior to 80 knots? And after lift-off? And after lift-off in case of engine failure?

Answer 18

Prior to 80 knots
- 8 degrees pitch up
After lift-off
- V2 + 15 up to V2 +25
After lift-off (engine failure)
- V2 up to V2 +15

Question 19

What does the Vertical Speed window display on V/S engagement? When does the numeric value starts to show?

Answer 19

• It displays the current Vertical Speed
• Numeric values are shown after 400 ft/m

Question 20

What is the range of the V/S selector?

Answer 20

-8000 to +6000

Question 21

How is a ‘Cruise Climb’ initiated? How do the FMC page title change?

Answer 21

• By selecting a higher altitude than the current FMC cruise altitude in the MCP window and pushing the altitude selector (altitude intervention).
• The FMC CRZ page displays ACT ECON/SPD/LRC CRZ CLB.

Question 22

When does the ALIGN maneuver commence during landing?

Answer 22

For crab angles > 10 degrees
- at 500’: 5 degrees sideslip introduced until landing

For crab angles between 5 and 10 degrees
- at 500’: 5 degrees sideslip introduced until 200’, then RWY alignment occurs

For crab angles < 5 degrees
- at 200’: RWY alignment occurs

Question 23

What heading does the AFDS command when Heading Select is engaged?

Answer 23

The AFDS turns the aircraft in the direction of least heading change to achieve the selected heading.

Question 24

What heading does the AFDS command when Heading Hold is engaged?

Answer 24

The AFDS commands wings level and holds the heading established when wings are level.

Question 25

When is **altitude deviation alerting** inhibited?

Answer 25

Altitude alerts are inhibited when: * G/S or G/P is captured * Landing flaps selected and gear is down and locked

Question 26

What indication does **Altitude Alert** provide during approach to selected altitude?

Answer 26

A white box is displayed around the selected altitude 900' feet prior to reaching it.

Question 27

What indication does **Altitude Alert** provide during deviation from selected altitude?

Answer 27

An EICAS caution message ALTITUDE ALERT is displayed when deviation of 200' feet occurs.

Question 28

Can the **IAS/MACH window** display a speed when VNAV is engaged?

Answer 28

Yes, by pushing the IAS/MACH selector (speed intervention).

Question 29

Which mode is used to **intercept the active route**?

Answer 29

LNAV

Question 30

On a **Go-Around**, what effect does a second push of the TO/GA switch have?

Answer 30

It activates the autothrottles in THR REF and commands full GA thrust.

Question 31

What is the difference between **THR** and **THR REF** references?

Answer 31

* THR: Thrust is applied to maintain the climb/descent rate required by the pitch mode * THR REF: Thrust is set to the reference thrust limit on the EICAS