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x. ORAL STUDY GUIDE - 737NG COPY > POWERPLANT > Flashcards

POWERPLANT Flashcards

1
Q
  1. What does an illuminated ENGINE CONTROL light mean?
A

 Engine control system is not dispatchable due to a fault

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2
Q
  1. Should you takeoff with an ENGINE CONTROL light illuminated?
A

 No

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3
Q
  1. Will you see an ENGINE CONTROL light in

flight?

A

 No, ground only light

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4
Q
  1. Each EEC has how many independent

channels (computers)?

A

 Two

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5
Q
  1. If an EEC channel fails, how do you select an

operating channel?

A

 You don’t, EEC channel switching is automatic

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6
Q
  1. What will the EEC do for you if you shove the throttle to the forward stop (firewall)?
A

 The EEC will provide N1 and N2 redline overspeed protection (not EGT)

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7
Q
  1. What engine protection will the EEC give you?
A

 N1 & N2 redline overspeed protection

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8
Q
  1. The EEC has how many control modes?
A

 Two

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9
Q
  1. What are these modes? (EEC Control Modes)
A

 Normal

 Alternate

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10
Q
  1. The EEC has how many alternate modes?
A

 Two

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11
Q
  1. What are the EEC alternate modes?
A

 Soft

 Hard

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12
Q
  1. How does the EEC operate in the soft ALTN

mode?

A

 EEC uses the last valid flight conditions to define engine parameters: Limits may change if conditions do

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13
Q
  1. What do the switches and lights look like in the soft ALTN mode?
A

 ON light and amber ALTN light

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14
Q
  1. How does the EEC operate in the hard ALTN

mode?

A

 ALTN thrust schedule, factory pre- programmed hard data

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15
Q
  1. What do the switches and lights look like in the hard ALTN mode?
A

 ALTN light only (pushbutton)

 ON light and ALTN light (pull throttle to idle)

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16
Q
  1. Will you get full rated power in the hard alternate mode?
A

 Hard alternate mode thrust is always equal to or greater than normal mode thrust for the same lever position

17
Q
  1. Does the EEC provide N1 and/or N2 redline overspeed protection?
A

 Yes

18
Q
  1. Does the EEC provide EGT redline

exceedence protection?

A

 No (except on ground starts only)

19
Q
  1. What are the IDLE phases the EEC can select?
A

 Ground min.
 Flight min.
 Approach

20
Q
  1. When is APPROACH idle automatically selected?
A

 Flaps in LDG CONFIG or ENG ANTI-ICE ON

21
Q
  1. In flight, if a fault prevents the EEC from receiving flap or anti-ice signals, when is APPROACH idle selected?
A

 Below 15000feet MSL

22
Q
  1. What does an illuminated amber REVERSER

light mean?

A

 Fault in the reverser system

23
Q
  1. What are four things that can cause the

REVERSER light to illuminate?

A

 Auto restow system active
 Translating sleeve not in commanded position
 Isolation valve not in the commanded position
 Synchronization shaft lock circuitry problem

24
Q
  1. When do the REVERSER lights come on in normal operation?
A

 When stowing the reversers

25
Q
  1. For how long do the REVERSER lights

illuminate?

A

 When stowing the reversers.10 seconds

26
Q
  1. When will you get a MC light & ENG

annunciator in the case of REVERSER light illuminated?

A

 When reverser light stays on past 12 seconds

27
Q
  1. What is the function of the engine start switches GRD position on the ground?
A

Open start valve
Closes bleed valve
Arms ignition

28
Q
  1. How does ignition operate in CONT?
A

 Selected igniter operates engine running

29
Q
  1. How does ignition operate in FLT?
A

 Both igniters operate if engine failure is sensed with start lever in idle

30
Q
  1. What is the power source for the LEFT igniters?
A

 associated AC transfer bus

31
Q
  1. What is the power source for the RIGHT

igniters?

A

 Standby AC

32
Q
  1. When must the engine start switches (with the

OFF option) be in CONT?

A

 takeoff, landing, heavy precip, anti-ice in use

33
Q
  1. What is the difference between the OFF option and the AUTO option on the start switches?
A

With…

eng is running
flaps down below 18,000 ft
or engine anti-ice is on

you get ignition from the selected igniters

34
Q
  1. How many autothrottle actuators are there?
A

 One servo motor for each throttle

35
Q
  1. What has to happen before reverse thrust can be selected?
A

 Throttles must be at idle position

36
Q
  1. Can the throttles be advanced while in reverse

thrust?

A

 No

x. ORAL STUDY GUIDE - 737NG COPY (18 decks)

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