Type training · Boeing 767 B1.1 · ATA 79

Boeing 767 B1.1: CF6-80C2 Engine Oil (ATA 79)Type training questions & answers

Oil tank and servicing, lube and scavenge pump, chip detector, filters, heat exchangers and indication.

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Sample CF6-80C2 Engine Oil questions with answers

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

  1. 1.Is CF6-80C2 oil pressure regulated?

    • A.Yes, by the EEC
    • B.No, it is not
    • C.Yes, by a relief valve
    Show answer and explanation

    Correct answer: B. No, it is not

    Oil pressure is not regulated; it varies with engine speed.

  2. 2.Where is the CF6-80C2 oil tank?

    • A.Right side of the fan case
    • B.Left side of the fan case
    • C.On the accessory gearbox
    Show answer and explanation

    Correct answer: A. Right side of the fan case

    On the right side of the fan case, with the scavenge filter below it; reached through the right fan cowl.

  3. 3.How does oil get from the tank to the lube and scavenge pump?

    • A.By tank air pressure only
    • B.By a boost pump
    • C.By gravity
    Show answer and explanation

    Correct answer: C. By gravity

    Oil flows by gravity to the pump assembly on the forward side of the gearbox.

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Part of the Boeing 767 B1.1 engine and APU course

One chapter of the Boeing 767 B1.1 engine and APU course question bank, for the 767-300 with GE CF6-80C2 engines, 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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