9 - Flight Controls Flashcards

1
Q

What happens if you get a RUDDER RATIO EICAS warning?

A

Left hydraulic system rudder actuator automatically depressurizes to provide structural protection for the rudder

(if hydraulic press normal):

  • 15 kts XWind limit
  • No Autoland
  • Avoid abrupt rudder inputs above 160 kts
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2
Q

To avoid buffeting, use of speedbrakes with flaps greater than ___ should be avoided

A

5

{CBT}

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3
Q

How long does it take from UP to F20 using Alternate Flap system?

A

3 min

(20 NM)

(flaps/slats move slower if HDG active)

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4
Q

In the ARMED position, when ________ the speedbrake lever is driven aft to the UP position and the spoiler panels are fully extended

A

landing gear is fully on the ground (not tilted) and the thrust levers are at idle

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5
Q

On the ground, when _______ the speedbrake lever is driven to the up position and spoiler panels are fully extended (armed/not armed)

A

either reverse thrust lever is moved to the reverse idle detent

The speedbrake lever does not need to be in the ARMED position

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6
Q

The SPEEDBRAKES light illuminates if speedbrakes are extended when radio
altitude is ______ or ______

A

800 feet or below

the flaps are in landing position

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7
Q

What is the purpose of the yaw damper system?

A

improve turn coordination and dutchroll damping

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8
Q

What happens when Flaps 1 is selected?

A

slats move to the midrange position

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9
Q

What happens when Flaps 5 is selected?

A

TE Flaps move to 5

inboard ailerons droop

slats remain in the midrange position

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10
Q

What happens when Flaps 25 is selected?

A

TE Flaps move to 25

slats move to fully extended landing position

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11
Q

The flap load relief system protects the flaps from excessive airloads.

If the flap airspeed placard limit is exceeded with the flaps in ___ the flaps automatically
retract to ___

When airspeed is reduced ____

A

25 or 30

20

flaps automatically re–extend

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12
Q

Alternate mode flap and slat extension is limited procedurally to ____

_____ is not available in the alternate mode

A

flaps 20

flap load relief

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13
Q

What happens during a LE Slat asymmetry?

A

Hydraulic power to the slats is automatically shut off

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14
Q

When the hydraulic driven generator is supplying electrical power, hydraulic flow to the slats and flaps is ____ , resulting in ____

A

reduced

increased slat and flap operating time

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15
Q

What powers the Stab Trim?

A

L/C

trim rate varies with airspeed

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16
Q

What powers the Yaw Dampers?

17
Q

What powers the Rudder Ratio Changer?

18
Q

What does UNSCHED STAB TRIM overhead light indicate?(3)

A
  • unscheduled stab trim movement
  • A/P trims opposite elevator control
  • manual trim in opposite direction of A/P trim
19
Q

Will flap asymmetry disconnect the A/T?

A

Yes, if > 19 deg difference between flaps and flap handle

20
Q

When is a 20 flap landing required? (4)

A
  • Eng inop
  • L or C Hyd failure
  • A/S unreliable
  • any alternate extension
21
Q

What is PES and when does it activate?

A

Pitch Enhancement System - hydraulic motor in R system uses L trim system fluid to operate Stab at 1/4 rate

auto activation if both L/C Hyd systems inop
(electric only, no alternate or auto trim)

22
Q

How many Rudder Ratio Changers and what is the power source?

A

one

L Hyd system

23
Q

How many Yaw Dampers and what is the power source?

A

two

L/C, any IRS

24
Q

How many Slats on each wing?

A

6

1 - inboard

5 - outboard

25
What does STAB TRIM light (overhead lights) mean?
trim at 1/2 rate
26
What does UNSCHED STAB TRIM light (overhead lights) mean?
- runaway trim - A/P trims opposite to elevator control - manual trim opposite to A/P control
27
What does SPOILERS light (overhead lights) mean?
one or more spoiler pairs inop
28
What powers the elevators?
all three hydraulic systems
29
Autopilot trims at what rate and why?
half the rate of manual trim because it uses only one of the two trim modules that is associated with the selected autopilot (C AP uses L module/hydraulic system unless there is a L bus fault or trim module failure and then C AP auto switches to the R bus, R module, C hydraulic system)
30
What happens if you use yoke trim switches with single autopilot engaged?
autopilot disconnects