Autoflight

Question 1

How many FMA modes are there?
What are they?

Answer 1

• 5
• Auto thrust modes
• Vertical flight guidance modes
• Lateral flight guidance mode
• Approach capabilities and DH/MDA
• A/P, F/D, A/THR Status modes

Question 2

Do the F/D need to be engaged to use A/THR?

Answer 2

Yes

Question 3

At what bank angle and pitch attitudes does the flight director disappear?

Answer 3

• 45° bank angle
• 25° nose up, 13° nose down

Question 4

If one FMGC fails what happens?

Answer 4

No automatic switching of FMGCs. A/P does not automatically switch

Question 5

What Limitation is there with regards to engaging A/P?

Answer 5

• 5 seconds after take off
• above 100ft AGL

Question 6

What happens to A/THR when both FMGCs fail?

Answer 6

A/THR is inoperative

Question 7

How long does the heading knob remain in the FCU window when selected? What are the exceptions?

Answer 7

• 45 seconds
• when heading is selected prior to takeoff
• When heading is selected during approaching and go around modes

Question 8

What speed is targeted when the EXPED pb on the FCU is pushed during a climb?

Answer 8

Green dot

Question 9

What speed is targeted when the EXPED pb is pushed during the descent?

Answer 9

340kts / .80M

Question 10

Does the autopilot maintain constraints when the EXPED pb is pushed?

Answer 10

No, all limits including the 250 kn speed limit below and 10,000 feet is ignored.

Question 11

How can the EXPED Mosby disengage? Can you press the EXPED pb?

Answer 11

• No, pushing the EXPED pb has no effect
• Another vertical mode must be engaged
• Pulling/pushing ALT / V/S knobs
• Pulling the speed knob

Question 12

What’s danger is there if V/S is used during the climb?

Answer 12

• auto pilot maintains specific V/S
• It ignores the speed
• Speed may reduce to critical values

Question 13

If the MORE DRAG message appears on the PFD during managed descent what must the pilot do?

Answer 13

Extend the speed brakes to at least half

Question 14

What speed is targeted on takeoff by the SRS?
What speed is targeted by the SRS when an engine fails on takeoff?

Answer 14

• V2 + 10kts
• V2

Question 15

What are the auto land wind limitations?

Answer 15

• Tailwind 10kts
• Crosswind 20kts
• Headwind 30kts

Question 16

At what altitude does the LAND mode engaged during an auto land?

Answer 16

400 feet

Question 17

At what altitude does the FLARE mode engaged during an auto land?

Answer 17

40-50ft

Question 18

At what altitude during an auto land, does the aircraft start reducing thrust? What FMA do you expect to see?

Answer 18

• 10ft
• RETARD

Question 19

Below what altitude during an auto land does the AUTO LAND light illuminate during failures?

Answer 19

Below 200ft

Question 20

When will the AUTO LAND light illuminate during an auto land?

Answer 20

• Below 200ft
• both auto pilots fail
• The localizer all glideslope signal is lost
• Significant different exists between the RAs
• Localized deviation exceeds 1/4 dot
• Glideslope deviation exceeds 1 dot