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Part 121 - CRJ 701/900 > Autoflight > Flashcards

Autoflight Flashcards

1
Q

What does the AP require to engage?

A
  1. Both FCCs working
  2. One channel of hor/stab trim
  3. 1 YD working
  4. Both AHRS working
  5. 1 ADC operative
  6. No significant aircraft instability
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2
Q

How can you disengage the AP?

A
  1. AP ENG switch
  2. AP DISC
  3. DISC on YD
  4. TOGA button on throttle
  5. Trim Switch
  6. AP/SP Disc on the control yoke
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3
Q

When will the autopilot automatically disconnect:

A
  1. FCC detects failure
  2. Both YDs fail
  3. Stall occurs
  4. WINDSHEAR is detected
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4
Q

What is the purpose of the yaw damper?

A

To prevent Dutch roll and provide better directional stability

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5
Q

How many yaw dampers does the autopilot require?

A

1

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6
Q

Where are lateral modes found with respect to vertical modes on the FMA?

A

Above

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7
Q

When does an autopilot mode become invalid?

A

When it is no longer appropriate for the aircrafts current condition.

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8
Q

When no other lateral mode is selected, what is the default mode?

A

ROLL

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9
Q

If the Roll mode activates when the bank angle is 3 degrees, what will happen?

A

A wings level attitude is displayed by the flight director

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10
Q

If the bank angle is greater than 5 degrees when the roll mode is activated, what will happen?

A

Roll mode will maintain the current bank angle

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11
Q

If in VOR mode and directly over the VOR, what does the system do to prevent losing VOR signal?

A

Goes into “DEAD RECKONING MODE.”

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12
Q

How will you know when dead reckoning mode is active?

A

White “DR” appears on the lateral mode

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13
Q

How is the approach mode different from the nav mode?

A

It is specifically used during precision approaches, has reduced tolerances and both flight directors provide independent guidance information generated from their respective FCC.

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14
Q

What modes, if selected, will be cleared when a localizer is captured?

A

The TURB, 1/2 BNK and HDG

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15
Q

How is the Go around mode activated?

A

By pressing the TOGA buttons on the thrust levers

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16
Q

What is the heading that will be maintained and the bank limit for the heading hold command of the flight director after the TOGA buttons are pressed?

A

Heading at the time of activation and +/-5 degrees

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17
Q

What will happen to the autopilot when the TOGA button is pressed?

A

The AP will disconnect

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18
Q

How long does the go-around mode remain active?

A

Until another mode is selected, the FD SYNC switch is pressed, or the autopilot is engaged.

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19
Q

When is the 1/2 bank mode automatically selected?

A

When the FDs are on and the aircraft is above 31,600’

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20
Q

What is the maximum bank in the 1/2 bank mode?

A

15 degrees

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21
Q

What will happen if we press the 1/2 bank mode while in approach mode established inbound?

A

The FCC will inhibit our actions and 1/2 bank mode will not be engaged

22
Q

How is takeoff mode activated?

A

Pressing the TOGA switches on either thrust lever while on the ground

23
Q

If I engage the AP in the vertical TO mode, what will happen?

A

PTCH mode will be engaged and followed

24
Q

During Altitude Capturing, the altitude bug is changed to 10,000 feet lower, what will happen

A

The AP will continue to level off at the previously selected altitude. It will not follow the Altitude bug down to the newly selected one.

25
Q

What altitude does the altitude hold mode maintain?

A

Whatever altitude the ALT button on the FCP was pressed

26
Q

Where is the IAS/MACH changeover altitude?

A

36,100’

27
Q

When is the speed mode cleared?

A

When the pre selected altitude is captured

28
Q

What is the speed mode used for?

A

Climbs and Descents

29
Q

When is the GS mode armed?

A

When the APPR mode is pressed on, a valid localizer is selected and the aircrafts heading is less than 90 degrees from the inbound course

30
Q

How long does the GS mode remain engaged?

A

All the way to touchdown

31
Q

What pitch command is generated when using the vertical go-around mode?

A

A 8 degree pitch-up command

32
Q

If an over speed condition occurs in ____________, the autopilot will automatically engage IAS/MACH.

A

VS or PTCH mode

33
Q

What is the purpose of the altitude alert system?

A

Provides 1,000’ alert

Provides 200’ off altitude alert

34
Q

When are altitude alerts inhibited?

A

When the glide slope is captured

35
Q

When the flight directors are first selected on, the default lateral and vertical modes are ________.

A

ROLL and PITCH

36
Q

If an over speed occurs when in the ALTS or ALT mode, the vertical mode reverts to what?

A

There is no change, the pilot must manually reduce the airspeed

37
Q

IAPS

A

Integrated avionics processing system

38
Q

FCC

A

Flight control computers 2 of them

39
Q

FCP

A

Flight control panel

40
Q

Protocol on who uses the FCP

A

PF will make all changes except when handflying, then PF will ask PM to make change

41
Q

What is indicated by the illumination of green lights next to the mode selection buttons on the FCP?

A

Both FCCs have received the request for the mode and conditions are correct for the selected mode. 2 green lights = 2 working FCCs.

42
Q

FD button on FCP does what?

A

Turns the flight director off

43
Q

When do the Flight Directors operate independently?

A
  1. CAT II
  2. TOGA go-around mode
  3. WINDSHEAR of decreasing performance
44
Q

In order for the autopilot to engage, both flight control computers must be _________

A

Functional

45
Q

After takeoff and the PF calls for speed mode, the PM selects the Speed button. What occurs?

A

Vertical mode changes to CLB and the current airspeed is referenced & displayed on the FMA.

46
Q

If you lose an engine, what will the command bars do?

A

Command 10 degrees pitch up.

47
Q

Pressing the TOGA button in flight during an approach will:

A
  1. Command 8-10 degrees pitch up
  2. Disconnect the autopilot
  3. Sequence FMS for the missed approach
48
Q

What does “TURB” mode do?

A

Delays response to minor changes to pitch and roll.

49
Q

How do we remove both flight directors?

A

Push the FD on the side the arrow is pointing to. Won’t disengage if the AP is engaged.

50
Q

What is the only time we use approach mode on the AP?

A

ILS capturing Glideslope

51
Q

Amber E, Amber A means what?

A

Elevator servo is out of trim

Aileron servo is out of trim

Part 121 - CRJ 701/900 (25 decks)

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