Type training · Airbus A320 family B2 · ATA 27

Airbus A320 B2: Fly-by-Wire Computers and Laws (ATA 27)Type training questions & answers

ELAC, SEC and FAC control laws and redundancy, THS motors, rudder limiting, SFCC logic and FCDC monitoring.

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Sample Fly-by-Wire Computers and Laws questions with answers

Three questions from the free preview. Think of your answer first, then open the explanation.

  1. 1.If both A320 ELACs fail, which computers take over pitch control?

    • A.FCDC 1 or FCDC 2
    • B.SEC 1 or SEC 2
    • C.FAC 1 or FAC 2
    Show answer and explanation

    Correct answer: B. SEC 1 or SEC 2

    ELAC 2 is normal for pitch with ELAC 1 as back-up. With both lost, SEC 1 or 2 takes over pitch.

  2. 2.Which A320 elevator actuators does ELAC 2 control?

    • A.All four elevator actuators
    • B.The green and yellow actuators
    • C.The blue actuators only
    Show answer and explanation

    Correct answer: B. The green and yellow actuators

    ELAC 2 controls the green and yellow elevator actuators and ELAC 1 controls the blue ones.

  3. 3.Which A320 aileron actuators does ELAC 1 control?

    • A.All four aileron actuators
    • B.Left blue and right green
    • C.Left green and right blue
    Show answer and explanation

    Correct answer: B. Left blue and right green

    ELAC 1 drives the left blue and right green actuators. ELAC 2 drives the other two.

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Part of the Airbus A320 family B2 type course

One chapter of the Airbus A320 family B2 type course question bank, for the A318–A321 avionics, written in our own words for revision. Your type course and the aircraft maintenance manual stay the authority: limits and procedures can differ between airframes and operators.

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