B-777 Engines

Front 1

Name of engines and thrust output

Back 1

GE90, 110,000lbs each

Front 2

What controls the engine

Back 2

EEC - Electronic Engine Control

Front 3

Where are engine indications displayed?

Back 3

EICAS display and Secondary Engine display

Front 4

What are the modes of the EEC?

Back 4

Normal and Alternate

Front 5

When the EEC changes the mode to Alternate automatically, is it in soft or hard mode? And will the NORM or ALTN light illuminate?

Back 5

Soft mode, NORM and ALTN light illuminates

Front 6

With EEC's in Alternate mode will advancing thrust levers to firewall provide overboost?

Back 6

Yes, only to be done in an emergency

Front 7

Does the EEC have overspeed protection (red line)?

Back 7

Yes, commands reduced fuel flow as it is approaching an N1 or N2 over speed (red line) for BOTH normal and alternate modes

Front 8

What are the idle settings?

Back 8

Minimum idle

Approach idle

Front 9

How many ignitors does each engine have?

Back 9

2

Front 10

An auto relight in flight using the AUTOSTART will happen how many times and how many ignitors are used?

Back 10

Continuous start attempts will be made until fuel Control switch is moved to cutoff and will use dual ignition

Front 11

What does the AUTOSTART system not monitor?

Back 11

Oil pressure and temperature

Front 12

If an unsuccessful start attempt occurs, how long will the engine dry motor between the first unsuccessful start and the second attempt?

Back 12

4 seconds

Front 13

What does selecting START selector do?

Back 13

Opens the starter air valve, which begins to dry motor the engine

Front 14

What does moving the FUEL CONTROL SWITCH to run do?

Back 14

Opens the spar fuel valve

Arms igniters

Locks associated engine fire switch

Front 15

On second AUTOSTART attempt what is the difference between start 1 and 2 attempts?

Back 15

Start 2 will use dual ignitors

Front 16

What is the difference between attempt 2 and attempt 3 autostarts?

Back 16

Starting fuel flow is adjusted

Front 17

When is an engine failure alert displayed?

Back 17

When actual engine performance is less than commanded

Front 18

On take off between 65 knots and 6 knots prior to V1 what happens to alert crew of an engine failure?

Back 18

Red ENG FAIL on PFD

Voice annunciation "ENGINE FAIL"

Master warning lights

Front 19

When will ENG FAIL (L or R) appear?

Back 19

When an engine unexpectedly decelerates to less than idle speed

Front 20

Is there a certified vibration limit?

Back 20

No

Front 21

What does BB mean?

Back 21

Broadband vibration, average vibration detected

Front 22

What is the in-flight start envelope?

Back 22

Airspeed range for an in-flight at the current flight level or maximum flight level. Displayed in magenta. It is displayed on the EICAS

Front 23

What does placing the fuel control switch into CUTOFF do?

Back 23

Closes fuel valves

Removes ignitor power

Unlocks the engine fire switch

Front 24

What is the normal controlling parameter the EEC uses?

Back 24

N1

Front 25

What drives the engine accessory gearbox?

Back 25

N2 rotor

Front 26

What are the N1, N2, EGT, Oil pressure and oil temperature operating limits?

Back 26

The red line

Front 27

How is low engine oil quantity displayed?

Back 27

White text "LO" is displayed adjacent to readout

Front 28

Can the secondary engine indications display if the lower center DU has failed?

Back 28

Yes, in compact mode on the upper center DU

Front 29

In flight how can you get maximum rated power in normal mode? Will it exceed any limitations?

Back 29

Pushing thrust levers to full forward position. No, EEC provides thrust protection (boost) unlike alternate mode

Front 30

What protections does the EEC provide in normal and Alternate mode?

Back 30

Overboost (amber) protection and red line protection in NORMAL

AND

Red line protection in both NORMAL and ALTERNATE

Front 31

Two conditions when engine is in approach idle and what is the point?

Back 31

Flaps 25 or greater

EAI on

It is to allow the engine less time to spool up for a G/A

Front 32

What conditions will the EEC not attempt another start for?

Back 32

Starter shaft failure

OR

No N1 rotation

OR

Insufficient air pressure for starter operation

OR

Starter time exceeds the starter duty cycle timer

OR

EGT exceeds the starter limit line

Front 33

In the alternate SOFT mode if the thrust lever is in a fixed position does thrust change and why is that a bad thing if only 1 EEC is in SOFT mode?

Back 33

Yes thrust on that engine is in a fixed position - thrust does NOT change. To eliminate thrust stagger at equal thrust settings or asymmetric thrust select both switches in the ALTN mode. This will eliminate stagger and asymmetric thrust when thrust levers are operated together.

Front 34

For a given thrust lever position does thrust change when the EEC is in Alternate hard mode?

Back 34

Yes, more thrust for a given position