Flight Controls Flashcards
Primary mode positions leading edge flaps
Pneumatically
Primary mode position for trailing edge flaps is
Hydraulically ()
Secondary mode position for leading and/or trailing edge flaps is
Electrically ()
The primary flight controls are powered hydraulically with no manual reversion available. True or False
TRUE ()
An elevator feel and centering mechanism is powered by hydraulic power from which systems?
Hyd 2 & 3 systems, loss of one system does not affect feel forces. (FCOM 9.20.2)
The four inboard spoilers function as____in flight.
Speedbrakes ()
The _____ spoiler panels on each wing act as a ground spoilers upon landing.
6 (FCOM 9.20.11)
What is the stabilizer trim rate with the EICAS advisory message STAB TRIM 2 is displayed?
Half the normal schedule rate (FCOM 9.20.5)
When will the ground spoilers extend automatically after landing, with the speedbrake lever in the DN position?
Main gear on ground.
Thrust levers 1 & 3 near idle.
Reverse Thrust levers 2 OR 4 are pulled up to idle detent. (FCOM 9.20.11)
You are flying with flaps 20 at the corresponding FLAP LIMIT placard speed. What happens if you select flaps 25?
Flap relief + EICAS msg ()
During normal flap extension sequence, when do inboard and midspan leading edge flaps extend?
Flap lever moved from UP detent to flaps 1 Detent ()
In Primary mode operation, how are leading flaps (LEF) and trailing edge flaps (TEF) powered?
LE - Pneumatically, TE - Hydraulically ()
Due to EICAS message FLAPS CONTROL you have to use Alternate Flaps extension. What is the maximum flaps setting?
Flaps 25 ()
What happens when moving the flap lever from the FLAPS 1 to the FLAPS 5 position?
Outboard LE flaps extend and TE flaps move to flap 5 position (FCOM 9.20.14)
Which flaps drive systems have asymmetry protection?
Primary and secondary ()
What is the purpose of the flaps lever gate at the flaps 20 position?
Prevents inadvertent retraction of flaps past go-around position (FCOM 9.10.9)
What is the purpose of the flaps load relief system?
Protects the flaps from excessive air loads if flap airspeed limits are exceeded with flaps 25 or 30 selected. (Works in Primary mode only)
What does the EICAS advisory message FLAPS PRIMARY mean?
One or more flap groups operating in secondary control mode (FCOM 9.30.1)
How are the flaps powered in the secondary control mode?
Electrically
Which hydraulic systems power the trailing edge flaps?
1 and 4
Which of the following is indicated by the EICAS caution message STAB TRIM UNSCHD?
Stab movement without trim signal
What will happen when the stabilizer trim switches on the control wheels are actuated with multiple autopilots engaged?
Nothing - They are inhibited during autoland (Multiple A/P use) (Two actuators are used so stab moves at NORMAL TRIM rate)
What occurs when the alternate stabilizer trim switches are used with any number of autopilots engaged?
Override A/P trim inputs but do not disengage A/P. Pilot is warned via a STAB TRIM UNSCHD caution msg.Will override the A/P input ()
Which hydraulic systems power the stabilizer trim?
2 and 3
What occurs when the stabilizer trim switches on the control wheel are actuated with a single autopilot engaged?
A/P is disengaged ()
Which trim is affected by the control column cutoff function?
STAB Trim (FCOM 9.20.5)
Hydraulic power for the elevators is provided by which hydraulic systems?
1,2,3,4……
Hyd 1 - Left outboard
Hyd 4 - Right outboard
Hyd 1&2 - Left inboard
Hyd 3&4 - Right inboard
What stabilizer trim condition exists when both stabilizer trim cutout switches are in the cutout position?
Hydraulic power is shut off. ()
Why are the outboard ailerons locked out?
To prevent overcontrolling at high airspeeds and provides the required roll authority at low airspeeds. (lock in neutral position at 238kts) (FCOM 9.20.7)
What does the aileron trim indicator display?
Aileron Trim units (The trim deflects the control wheel in a desired direction, the indicator shows the amount of deflection)
What is one of the required conditions for automatic speedbrake extension with the speedbrake lever in the ARM position?
Main gear on ground
Thrust levers 1 and 3 near idle (FCOM 9.20.11)
Which statement is true when the EICAS advisory message SPEEDBRAKE AUTO is displayed?
Speedbrakes can still be operated manually
How many spoiler panels are on each wing?
6 (similar to question 195)
With the speedbrake lever in the armed position what does the EICAS message speedbrake auto mean?
Fault detected in automatic ground spoiler system that could result in an inadvertent spoiler extension (FCOM 9.30.1)
When are the outboard ailerons locked out?
High airspeed ()
What is the function of the RUDDER RATIO changers?
Limit deflection with increasing speed.
- Gradually reduce each rudder surface’s response to pedal inputs as airspeed increases.
- Protects the vertical tail structure from stresses which could result from large rudder surface deflections at high airspeeds (FCOM 9.20.9)
What does the EICAS advisory message RUD RATIO SNGL mean?
Upper or lower rudder ratio changer fault detected (FCOM 9.30.1 Pg. 1195)
What functions do the yaw damper systems provide?
Improve airplane lateral and directional stability and provide turn coordination. (FCOM 9.20.9)
How many yaw damper systems are there?
2 systems ()
What does the EICAS message YAW DAMPER LWR or UPPER mean?
Yaw damper failure or Power Failure (FCOM 9.30.2)
What does the rudder trim indicator display?
Units of rudder trim (towards nose left or nose right) ()
What does rotating the rudder trim knob do?
The rudder feel & trim mechanism repositions the rudder pedal neutral point.
