Type training · Boeing 777 B2 · ATA 70–80

Boeing 777 B2: PW4084 Engine Systems (ATA 70–80)Type training questions & answers

EEC power, plug and modes, ignition, indicating and vibration, oil sensing and starting.

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Sample PW4084 Engine Systems questions with answers

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

  1. 1.Can engine gaskets and preformed packings be reused?

    • A.No, never
    • B.Yes, if the B1 certifier agrees
    • C.Yes, if the foreman agrees
    Show answer and explanation

    Correct answer: A. No, never

    Gaskets and preformed packings are always replaced. Ref AMM 70-00-01.

  2. 2.In which direction may an already bent engine tube be bent again?

    • A.The reverse direction
    • B.The same direction
    • C.Any direction
    Show answer and explanation

    Correct answer: B. The same direction

    A tube may only be bent further in its original direction. Ref AMM 70-00-01.

  3. 3.How many lockwire twists per inch are required?

    • A.7 to 9
    • B.12 to 15
    • C.9 to 12
    Show answer and explanation

    Correct answer: C. 9 to 12

    Lockwire is twisted 9 to 12 times per inch. Ref AMM 70-41-00.

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Part of the Boeing 777 B2 type course

One chapter of the Boeing 777 B2 type course question bank, for the 777 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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