5.4 AUTOMATIC FLIGHT

Question 1

When the FMC (VNAV) controls the speed, what does the IAS/MACH window display?

Answer 1

Nothing, it is blank.

Question 2

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

Answer 2

On the PFD, HUD and ND

Question 3

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

Answer 3

o The first push:
▪ The AP disengages
▪ The Master Warning illuminates
▪ The Aural Warning sounds
▪ AUTOPILT DISC is displayed on the EICAS
▪ If the Autopilot was disconnected it resets the EICAS message, Aural and
Master Warnings.
o 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 Autothrotle disconnect switch or by 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

When in HDG SEL or TRK SEL.

Question 7

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

Answer 7

o Climb?
▪ THR
o Descent?
▪ Hold

Question 8

When are FLARE and ROLLOUT armed and engaged?

Answer 8

o Flare is armed during autoland at 1500’ and engages at 60’- 40’.
o Rollout is armed at 1500’ and 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 in the following situations:

Answer 10

o Before LOC or G/S capture?
▪ By selecting APP, LNAV, VNAV or LOC
o LOC captured G/S armed?
▪ By selecting HDG/TRK SEL or HDG/TRK HOLD
o LOC and G/S captured.
▪ By selecting TO/GA or by selecting APP above 1500’
o In all modes by selecting both APs and FDs off

Question 11

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

Answer 11

o During climb it will capture the lower.
o During descent it will capture the higher.

Question 12

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

Answer 12

At 400’

Question 13

During a VNAV climb, the aircraft levels off at an intermediate altitude which has been
selected on the MCP. What will the FMA pitch mode annunciation be?

Answer 13

VNAV ALT

Question 14

What is the maximum localizer intercept angle?

Answer 14

120 degrees

Question 15

What does a green box around an FMA mode mean?

Answer 15

Initial engagement of the mode, stays for 10 sec.

Question 16

What do the FD bars command at Take-off prior to 80 knots?

Answer 16

8 degrees pitch up

Question 17

What do the FD bars command at Lift-off?

Answer 17

▪ V2 + 15 below V2 + 15
▪ Current speed if it was between V2 + 15 and V2 + 25
▪ V2 + 25 if speed was above V2 + 25

Question 18

How are FD pitch commands during take-off affected by engine failure?

Answer 18

▪ V2 when below V2
▪ Current speed if it was between V2 and V2 + 15
▪ V2 + 15 if speed was above V2 + 15

Question 19

What does the Vertical Speed window display on V/S engagement?

Answer 19

It displays the current V/S

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

o By selecting a higher altitude than the current FMC cruise altitude in the MCP window
and pushing the altitude selector.
o The FMC CRZ page displays ACT ECON CRZ CLB

Question 22

When does the ALIGN manoeuvre commence during landing?

Answer 22

o For crab angles more than 10 degrees at 500’ 5 degrees sideslip is interduced until
landing.
o For crab angles between 5 and 10 degrees at 500’ 5 degrees sideslip is interduced
until 200’ then RWY alignment occurs
o For crab angles less than 5 degrees at 200’ a RWY alignment occurs.

Question 23

What heading does the AFDS command when the following modes are engaged? Heading Select.

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 the following modes are engaged? Heading Hold.

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

▪ 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

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