Oral: Autoflight Questions

Question 1

When will the FGCS automatically select half-bank? What is the bank angle?

Answer 1

• FL250

* 17° bank angle

Question 2

What is FPA?

Answer 2

• Flight Path Angle is a pilot-selectable pitch attitude (in degrees) of climb or descent
• FGCS adjusts thrust & pitch to maintain path angle and airspeed

Question 3

What does the TOGA button do?

Answer 3

• On ground&raquo_space;> Activates takeoff guidance crossbars

* In flight &raquo_space;> Activates Go-Around guidance

Question 4

What do the takeoff guidance crossbars do?

Answer 4

• Maintain extended runway centerline

* Maintain pitch guidance according to slat/flap setting

Question 5

When is the TOGA mode deactivated?

Answer 5

• Another vertical mode is selected
• Autopilot is activated
• TCS button is pressed

Question 6

When will the FD automatically display?

Answer 6

• TOGA button is pressed
• Autopilot is activated
• Windshear detection

Question 7

What is the function of the TCS button?

Answer 7

• Allows manual override of the autopilot
• When released, airplane maintains new altitude (provided ALT was the active vertical mode) but will return topreviously lateral mode (except ILS, autopilot will recapture the LOC/GS)

Question 8

What will disengage the autopilot?

~9 events~

Answer 8

1 - AP button on GP is pushed
2 - Any manual pitch trim is activated
3 - Either AP/TRIM DISC button is pushed
4 - Stick shaker activated
5 - Windshear escape guidance is activated
6 - Flight controls in direct mode
7 - Aileron or elevator controls disconnected
8 - Overpowering the yoke
9 - Internal system failures

Question 9

Can the yaw damp be deactivated if the autopilot is on?

Answer 9

Yes, it is independent of the autopilot

Question 10

When will the auto-throttles engage on the ground? In flight?

Answer 10

• On ground —> AT TO (GP) is armed & TLA > 50°

* In flight AT —> (GP) is armed & airplane > 400 ft AGL

Question 11

Will the auto-throttles compensate for gusty wind conditions?

Answer 11

•Yes, up to 5 kts

Question 12

What will disengage the auto-throttles?

Answer 12

• AT(TL or GP) is pushed
• TLA difference > 8°
• TL at idle with weight-on-wheels or wheels spinning
• Internal system failures

Question 13

What is SPDe?

What mode uses SPDe?

Answer 13

• Speed on Elevator, thrust is fixed and pitch is adjusted to maintain airspeed (VS changes)
• FLCH uses SPDe for climbs and descents

Question 14

What is SPDt?

What modes use SPDt?

Answer 14

• Speed on Thrust, thrust is adjusted to maintain selected airspeed
• FPA, VS, GS, ALT, ASEL

Question 15

What are the AT modes?

Answer 15

SPDe, SPDt, TO, GA, HOLD, RETARD (@ 30 ft RA)

Question 16

What does LIM & OVRD mean on the FMA?

Answer 16

• LIM - The selected vertical mode requires more or less engine thrust than is available
• OVRD - The TL are being manually moved (no AP disengagement)

Question 17

When is CRZ automatically selected?

Answer 17

• When +100 ft of selected altitude for 90 seconds

* Desired airspeed must be achieved or it will remain in CLB mode

Question 18

What does the SRC button do?

Answer 18

Selects pilot or co-pilot as the data source for the AFCS

Question 19

What does thered AP/TRIM DISC button on the yoke do?

Answer 19

• Disconnects the autopilot

* Stops all trim actuation if button is pushed and held

Question 20

What does the PREV button do?

Answer 20

• Allows the capture of ILS/BC course while still using the FMS as the basic NAV source provided the AUTO
• TUNE function is enabled on the MCDU and the approach is loaded in the FMS