Flight Controls Flashcards
What does an amber “X” on a flight control on the Flight Control Synoptic Page indicate?
Flight Control RVDT has failed
If LATERAL HOPS occur, hydraulic power is turned off to:
Both Ailerons
What can you do in case of a jammed aileron?
Pull disconnect handle for aileron
What can you do in case of a jammed elevator?
Pull disconnect handle for elevators
What is the maximum deflection of the speed brakes when you use the handle?
Maximum deflection is 35 degrees
What is the Maximum Deflection of the Ground Spoilers?
- 55 degrees
- Note: The control pressure is from the Left, PTU, or AUX system
What system does the Standby Rudder use following the loss of Left/Right systems?
- Standby Rudder will use AUX pump to YD1. May need to select FGC1.
- It uses the AUX pump to power the Rudder through the Left systems port and only works while airborne (WOW in FLIGHT)
How are the Flaps controlled?
- The Flaps are electrically requested and hydraulically powered by the Left, AUX, or PTU pressure.
- Flap control in the Flap/Stab computer is DC
How is AILERON HOPS reset?
Use QRH and PULL / REST CB’s
What happens with a HOPS?
The Aileron HOPS shuts off both actuators whereas Elevators and Rudder only shuts down the affected actuator.
CLARIFICATION: Elevator has two actuators (HOPS will shut down 1 of 2). Rudder has only 1 actuator (HOPS will shut down 1 of 1).
What must you do to use the mechanical trim wheel?
Select the PITCH TRIM switch light to OFF
What does BLUE SINGLE RUDDER CAS message indicate?
Rudder power is down to one hydraulic power source
When ON, what does the GND SPOILER FLAP OVERRIDE switch simulate?
- Flaps are actually more than 22 degrees
- GROUND SPOILERS deploy automatically with Wheel Speed Spin up
The reason for selecting the GPWS/GND SPLR ORIDE to ON when landing with flaps less than 22 degrees is:
- To prevent the nuisance TOO LOW FLAPS aural alert and
- Deploy the ground spoilers with wheel spinup
What does RED GROUND SPOILER CAS message mean?
- Failed Ground Spoiler component OR
- Deployed Ground Spoiler Panel
Loss of one hydraulic system will:
Not effect spoiler activation
The horizontal stabilizer (STAB) remains operative in the EMER STAB ARM mode, and can be positioned with:
Yoke Trim Switches
Selecting the EMER STAB switch ON (ARM):
- Illuminates ARM in switch
- Enables EMER STAB mode
- STABILIZER positioned by using YOKE electric pitch trim wheels
Selecting the EMER STAB switch OFF:
- Switch is dark
- EMER STAB mode disabled
- STABILIZER now moves corresponding to flap position.
Selecting STALL BARR switch to OFF:
- OFF illumination in switch
- STALL BARRIER CAS displays
- Stick Pusher is Disabled
- Stall Warning stick shaker continues to function
Selecting STALL BARR switch ON:
- Must be selected ON for all flight operations unless a malfunction OR
- Procedural reasons require switch to be selected OFF
Selecting PITCH TRIM ENG / DISENG switch to ENG:
- DISENG (AMBER) is extinguished
- Pitch Trim is engaged
- YOKE pitch trim switch is active for elevator trim
Selecting PITCH TRIM ENG/DISENG switch to DISENG
- DISENG (AMBER) is illuminated
- YOKE pitch trim is disengaged
- MANUAL TRIM WHEEL must be used for elevator trim
Selecting YAW DAMP ENG / DISENG switch to ENG
- DISENG (AMBER) is extinguished
- YAW dampers are engaged
Selecting YAW DAMP ENG/DISENG switch to DISENG:
- DISENG (AMBER) is illuminated
- YAW dampers are disengaged
Selecting the GPWS/GND SPLR switch to ON:
- ON (AMBER) legend is illuminated
- Automatic ground spoiler deployment will occur with flaps < 22 degrees and both struts have Wheel Speed Spin up
- GPWS voice alarm “TOO LOW FLAPS” is inhibited
Selecting the GPWS/GND SPLR switch to OFF:
- ON (AMBER) legend is extinguished
- Automatic ground spoiler deployment will occur with flaps < 22 degrees only when Weight On Wheels has occurred
- GPWS voice alarm “TOO LOW FLAPS” is NOT inhibited
Selecting the GND SPLR switch to OFF:
- OFF (AMBER) is illuminated
- Ground Spoiler System is not armed to operate
- Gear Down the blue “Ground Spoiler Unarm” CAS message will appear
What is required for ground spoiler deployment with flaps > 22 degrees?
- Select the GND SPLR switch to ARMED (BLUE) is illuminated
- Both throttles at idle
- Wheel spin up OR WOW ground on each main gear strut
NO GND SPLRS red switch lights on center windscreen post illuminate if:
- Operational parameters are satisfied
- GND SPLR switch selected to ARMED (BLUE)
- Left wing, right wing, or both wing ground spoilers did not deploy
The flight controls GUST LOCK:
- Secures the aircraft moveable surfaces in stabilized positions
- Prevents damage to surfaces and control linkages from high winds or jet blast
- Effective in wind speeds up to 60 knots
Ensure hydraulic pressure is depleted prior to engaging the GUST LOCK by:
Cycling the flight controls with the control column, yoke, and rudder pedals
