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70 Cards in this Set
- Front
- Back
What is the main difference between the ailerons and
other flight controls? |
The ailerons are driven by conventional control cables that are connected to hydraulic actuators (hydro-mechanical)while the rest of the flight controls are fly by wire. Fly by
Wire hydraulic actuators are called Power Control Units (PCUs) |
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What are the two main parts of the Fly-by-Wire primary
flight control electronics? |
Primary Actuator Control Electronics (P-ACE)
Flight Control Module (PCM) |
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The Pitch Trim Switches trim the airplane when the
autopilot is not engaged. Which one has priority? |
Captain’s has priority over the First Officer’s
|
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What does pressing the AP/TRIM DISC button do
|
? Disconnects both HS-ACE channels but only while held.
Releasing it will activate the channels again. |
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What Flap Lever position has a gated stop
|
Flaps 4
|
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What two flap lever positions provide identical flap and
slat positions? |
Flaps 4
Flaps 5 |
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How many degrees of flap and slat does full flap provide
|
35 degrees of flaps
25 degrees of slats |
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Do the spoilers deploy at different angles when using the
speed brake lever? |
No, they deploy symmetrically and at the same angle
|
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How would we trim the stabilizer if the normal trim does
not function? |
Use the Backup Pitch Trim Switch on the center console
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What will happen if using the backup Pitch Trim Switch
|
The autopilot will disengage
|
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Can we disable Channel 1 or 2 of the HS-ACE
|
By using the Pitch Trim Sys 1 (2) guarded buttons on the
center console Trim Panel. The respective channel is disabled when pushed in (out is normal) |
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There are three Flight Control Mode guarded buttons.
What do they do? |
When pushed in they put the associated flight system into the Direct Mode from the Normal Mode.
|
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What three flight systems have Flight Control Mode
buttons? |
Rudder
Spoilers Elevator |
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What three surfaces are shown on the Flight Control
System Status Annunciation? |
RUDDER
ELEV LH ELEV RH |
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There is an upper and lower rudder surface. What about
the elevators? |
There is an inboard and outboard elevator surface.
|
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On most airplanes it is somewhat important to know what flight controls are powered by which hydraulic systems
How can we find this information without referencing the AOM. |
Look at the Flight Controls Synoptic Page
|
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You're looking at the Flap EICAS position indicator and it is showing amber. What does this mean?
|
The flaps are in transit. It will turn green when stable
|
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What will the EICAS display if a surface jamming
occurs? |
EICAS message plus an amber box and readout on the flap
display |
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What is the green takeoff band of the pitch trim
|
1 Degree to -6 degree
|
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How many ACEs are installed
|
Three P-ACE
Two SF-ACE One HS-ACE |
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What are the two basic flight control modes of operation
|
Normal
Direct |
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Basically, what happens in the Direct Mode
|
The FCM is removed from the control loop and the control
limits are set by hardware in the P-ACE. |
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What results in the Direct Mode activation
|
No airspeed input or higher level functions to the P-ACE.
|
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Can the Direct Mode be selected by the pilot
|
Yes, by pressing the FLT Control Mode button in (out is
normal) |
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Which elevator surface does Hydraulic System 1 control?
|
Left Outboard Elevator
|
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Which elevator surface does Hydraulic System 2 control?
|
Left & Right Inboard Elevator
|
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Which elevator surface does Hydraulic System 3 control?
|
Right Outboard Elevator
|
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If a jam occurs in one elevator what happens to the
system? |
That one surface remains fixed and the pilot controls
remaining elevator surfaces |
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What is no longer available when in the Direct Mode
(elevator)? |
Elevator Thrust Compensator
AOA Limiting |
|
What is the Elevator Thrust Compensator Function
|
It moves the elevator +/-50 to compensate Engine Thrust
Changes. |
|
Does the Feel system still work in the event of a jammed
control wheel resulting in separation? |
Yes, each torque tube has it's own spring but the feel will be lighter (1/2 of normal loads)
|
|
After an elevator disconnect, the pilot of the non-jammed
side retains control over which elevator? |
The on-side elevator
|
|
Does the trim switch activate the trim through the FCM
(Flight Controls Module)? |
No, only the autopilot trim uses the FCM.
|
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The priority of HS-ACE (Horizontal Stabilizer Actuator Control Electronics) trim commands is?
|
Backup
Captain 1st Officer FCM (Autopilot Trim) |
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When does the trim function work at only half speed
|
Electrical Emergency following RAT deployment
|
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Which hydraulic system powers the inboard aileron
PCUs? |
Inboard Aileron PCU ..........Hydraulic System 2
|
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Which hydraulic system powers the outboard
aileron PCUs? |
Outboard Aileron PCU........Hydraulic System 3
|
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In the event of an aileron jam followed by a disconnect
which side has normal feel and which side has no feel |
Captain’s side has normal feel.
First Officer’s side has no feel. |
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There are inner, middle and outboard spoilers on each
wing. In the event of a disconnect due to jamming which side controls which spoilers? |
Captain side controls Outboard Spoilers
First Officer’s side controls Middle Spoilers The Inboard Spoilers are Disabled |
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What prevents aileron runaway trim
|
There is a 3 second timer that limits trim activation to no more than 3 seconds.
|
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Which hydraulic systems power which rudder surfaces
|
Hydraulic System 1 ....Upper Rudder
Hydraulic System 3 .....Lower Rudder |
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How can the pilot disconnect a jammed rudder
|
He/She cannot
|
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How does an electrical emergency with RAT deployed
affect the flaps and slats? |
They will operate at only 1/2 speed
|
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Which hydraulic systems power the ground spoilers
|
L2 & R2 (Outboard Ground Spoilers)........Hydraulic System 1
L1 & R1 (Inboard Ground Spoilers)...........Hydraulic System 2 |
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Are speedbrakes available in the Direct Mode
|
No
|
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When will the speedbrakes automatically retract
|
When selecting Flaps 3 on an Approach, or
After TLA of 600 on Go Around |
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This helps reduce pilot workload by applying elevator commands to reduce the pitch moments produced by increasing or decreasing thrust
|
Elevator Thrust Compensation
|
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Elevator commands are limited to what degrees
|
+/- 5 degrees
|
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How many channels is the H-ACE
|
2-Active & standby
|
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How many multifunction spoilers are there
|
3 outboard per wing act as speed brakes and roll control
2 inboard each wing act as ground spoilers |
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How many hydraulic actuators are ther for the multifunction spoilers
|
1 per panel
|
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What is the maximum deflection of the speed brakes
|
30 degrees
|
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When will the speed brakes auto retract
|
-Slat/flap selector set to a position 2 degrees or more
-A/S less than 180 knots -Thrust level angle >60 degrees |
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The speed brakes are not available in what mode
|
Direct mode
|
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What situation will grouns spoilers auto deploy
|
-WOW
-Wheel speed <45 knts or A/S >60 knts -TLA <60 degrees |
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What situation will ground spoilers auto retract
|
-Wheel speed <45 knts
-TLA moved beyond 60 degrees |
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What mode are ground spoilers unavailable
|
Direct mode
|
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What extends first slats or flaps
|
Slats
|
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What retracts last slats or flaps
|
Slats
|
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How many slats are there per side
|
4
|
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Full position of slats and flaps results in
|
25 degrees slats
35 degrees flaps |
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What are the two slat positions
|
1-3=15 degrees
4-Full=25 degrees |
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What flap setting is the designated go around position
|
4
|
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If the RAT is deployed the slats/flaps are restricted beyond what flap position
|
3
|
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VMO will extend the multifunction spoilers to what degree
|
8
|
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When the aileron disconnect handle is pulled what happens to the multifunction spoilers
|
Only 2 of the 3 are available
The inboards are inoperative |
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Do not retract flaps or slats to less than ____ if icing is suspected
|
3
|
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What happens when you use only half of the back up trim switches
|
They have a 5 secon time limitation. Holding for longer will deactivate the switch
|
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In case of a jammed rudder PCU actuator what will happen to the rudder
|
The rudder will be hydraulically locked in the current position. Aircraft control will be established through the ailerons and roll spoilers
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In the event of a jam in the captains rudder pedal assemblies what happens to the rudder
|
It remains active and will be actuated by higher level functions (yaw damping and turn coordinator)
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