Study Guide Autoflight

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; Activates takeoff guidance crossbars

- In flight; 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
• Wind shear 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 to previously lateral mode (except ILS, autopilot will recapture the LOC/GS)

Question 8

What will disengage the autopilot?

Answer 8

• AP button on GP is pushed
• Any manual pitch trim is activated
• Either AP/TRIM DISC button is pushed
• Stick shaker activated
• Flight controls in direct mode
• Aileron or elevator controls disconnected
• Overpowering the yoke
• 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 deg

- 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 degrees
• TL at idle with weight on wheels or wheels spin
• 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 to 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 the red AP/TRIM DISC button on the yoke do?

Answer 19

• disconnects the autopilot

- Stops all trim actuation is button is pushed and held

Question 20

What does the PREV button do?

Answer 20

Allows the capture of ILS 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