BBD-700 Flight Controls Flashcards
How are the primary flight controls controlled and actuated?
Mechanically controlled
Hydraulically actuated
Which hydraulic systems power the aileron PCUs?
Left aileron – systems 1 and 3
Right aileron – systems 2 and 3
How are the aileron control circuits separated in response to a jammed control system?
Via a roll disconnect mechanism in the torque tube
If the aileron/rudder/stabilizer trim is outside the allowable range during throttle advancement for takeoff, what will occur?
CONFIG AIL / RUD / STAB TRIM red warning message
NO TAKEOFF voice message
When is initial yaw damper engagement controlled by the flight guidance computer?
First engine start
Which hydraulic systems power the rudder PCUs?
Hydraulic systems 1, 2 and 3
Which hydraulic systems power the elevator PCUs?
Left elevator – systems 1 and 3
Right elevator – systems 2 and 3
Which 3 trim modes activate the horizontal stabilizer and their priority?
Manual trim (pilot then copilot) Auto trim (autopilot 1 or 2) Mach trim (autopilot off)
What functions does the Master Disconnect Switch on the yoke provide?
AFCS disconnect – momentarily selected
Pitch trim disconnect – held
Stall pusher - held
When will the stabilizer in motion aural clacker sound?
Stabilizer runaway
Stabilizer trim switch is held for an extended period
How is operation of the slats and flaps controlled?
By two independent slat/flap control units (SFCUs)
What is the purpose of the “Flap Override Switch”?
Used to cancel the flap aural warning if the flaps cannot be configured for an OUT/30 landing
How many spoiler panels are located on each wing?
4 multifunctional spoilers (MFS)
and
2 ground spoilers (GS)
With flaps extended, which MFS are available?
Only the two inboard pairs of MFS
MAX selection on the FSCL has no effect
The MFS are used for what purpose?
Roll assist
Proportional lift dumping
Ground lift dumping
Combination roll assist and proportional lift dumping
