FLT CTL Panel Flashcards
What does ELAC stand for?
o Elevator Aileron Computer
How many ELAC’s on the Airbus?
2
What are the functions of the ELAC?
o Control of the elevators, ailerons, and the trimmable horizontal
stabilizer (THS).
o The ELACs compute the need for roll spoiler movement (which is
sent to the SECs), and rudder yaw movement (which is sent to
the FACs).
In the event a single ELAC should fail, what would happen?
o The remaining ELAC is capable of providing complete control of
the ailerons, elevators, and THS.
What does SEC stand for?
o Spoiler Elevator Computer
How many SEC’s are installed?
3
What is the primary responsibility of the SEC’s?
o Spoiler Control. Each SEC controls one or two pairs of spoilers.
What does a FAULT light in an SEC pb mean?
o The SEC is inoperative
What is lost?
o The spoiler panels associated with the failed SEC are
inoperative.
Both ELACs fail, can any of the SECs provide backup and of what
functions?
o SECs 1 and 2 can provide backup pitch control of the elevators
and THS. Aileron control is lost and the ailerons streamline.
Roll is accomplished with just the spoilers.
What does FAC mean?
Flight Augmentation Computer
How many FAC’s are installed?
o 2
What are the functions of the FAC’s?
o Rudder o Auto Turn Coordination o Yaw Dampening o Rudder Limiting o Rudder Trim o Characteristic Speeds o Flight Envelope and maneuvering computations o Alpha Floor protection o Windshear detection o Low Energy Warning computation (“SPEED SPEED SPEED”)
What happens if you select a FAC pb to OFF?
o Deactivates the corresponding yaw dampening and rudder trim
functions to that FAC. If the FAC is still operable, it continues to
compute all flight envelope functions and maneuvering speeds.
