EICAS

Question 1

EICAS stands for

Answer 1

Engine Indicating and Crew Alerting System

Question 2

How many EICAS systems are there?

Answer 2

2 independent systems which monitor each other

Question 3

There are two EICAS screens displaying messages on CRTs (Cathode Ray Tubes), what is displayed on each screen?

Answer 3

the upper screen is ultimately a PFD, where engine power settings and alerts are monitored, and the lower screen is like the MFD, which provides supplementary information such as oil temp and pressure, or system status.

Question 4

Why is there an option to select which computer is supplying the EICAS CRTs?

Answer 4

Because it allows you to crosscheck if one of the computers is giving false information

Question 5

Which EICAS CRT will crew alerting messages appear?

Answer 5

The upper screen

Question 6

How are the different crew alerting messages represented?

Answer 6

Warning: Red: requires immediate action
Caution: Amber: Requires timely action
Advisory: Amber but indented one space: Requires action when time available

Question 7

What are the 3 WARNING aural tones that are available?

Answer 7

Bell, Siren, Voice. Bell for engine fire, Siren for configuration/unusual attitude, Voice for GPWS

Question 8

What are the 2 CAUTION aural tones available?

Answer 8

Voice and beeper. Voice is for GPWS, beeper is for all cautions. The beeper is 4 beeps in 1 second.

Question 9

How are aurals silenced?

Answer 9

When the issue is resolved (unless it is a beeper which only does 4 beeps)

Question 10

Why would you push the master warning/caution button?

Answer 10

to reset the system so that it if another fault occurs you will be notified. If you didn’t, then you would have to rely on seeing the new message on the EICAS CRT to notice as the aural tone would stay the same.

Question 11

In what order to crew alerting messages occur?

Answer 11

In order of importance and recency, warnings (red), cautions (amber), advisories (amber with an indent). If a new warning appears, it will be placed on top of the warnings list, and if a new caution appears, it will be placed on top of the cautions list etc…

Question 12

What are the cancel and recall switches for?

Answer 12

Cancel allows you to get the crap out of the way, the recall switch lets you go back an investigate the stuff you cancelled

Question 13

Can warning lights be cancelled?

Answer 13

NO

Question 14

What happens if there are multiple pages of messages and you push the cancel button?

Answer 14

current page messages will be cancelled and the next page will appear

Question 15

Would there be times where you don’t want crew to be alerted?

Answer 15

Yes, certain warnings are inhibited, this is to prevent distraction during critical phases e.g. T/O

Question 16

Are fire warnings inhibited on takeoff?

Answer 16

Yes, you will only get a warning with nose gear extension or reaching 400ft RADALT, whichever occurs first.

Question 17

During the takeoff, is the beeper and master caution inhibited?

Answer 17

Yes, but only after 80kts. Disengages at same time as fire warnings.

Question 18

When does the takeoff configuration warning go off?

Answer 18

When either engine is advanced toward takeoff thrust, and

• Leading edge slats / trailing edge flaps not deployed
• spoilers not in DOWN position
• stab trim out of limits
• park brake on
• flap position disagrees with indicator

Question 19

To make sure you’re not a fuckwit and you don’t takeoff in the incorrect configuration, what could you do as a method of checking the configuration?

Answer 19

Use the test function of the takeoff configuration warning, which won’t make a sound if the none of the prerequisites are met. If you get a message, you’ve fucked up.

Question 20

When does the landing configuration warning go off?

Answer 20

At or below 800ft RADALT with gear up and idle thrust set, or landing flaps selected with gear up

Question 21

Why does the stick shaker not function during landing?

Answer 21

Because it is inhibited with landing flaps deployed.

Question 22

Can you cancel Mmo or Vmo messages?

Answer 22

Only by slowing down

Question 23

What RADALT altitudes will the GPWS be active?

Answer 23

50ft-2450ft

Question 24

What are the two categories of alers from the GPWS?

Answer 24

Soft warnings (alerts/cautions), or hard warnings “WHOOP WHOOP PULL UP”

Question 25

What are the 5 modes of GPWS

Answer 25

Modes 1 and 2 are hard warnings. 1 = excessive descent rate, 2 = excessive terrain clearance rate. Modes 3-5 are soft warnings. 3 = altitude loss after takeoff/go-around, 4 = unsafe terrain clearance while not in landing configuration, 5 = below glideslop indication.

Question 26

What fucked up scenario will the GPWS not provide warnings for?

Answer 26

Flight toward excessively sharp terrain, or very shallow descents while in landing configuration (think about that 737 which literally just flew into the water)

Question 27

To get to a hard warning, do you have to encounter a soft warning first?

Answer 27

Nope, can get a hard warning straight away.

Question 28

Do the master caution lights illuminate for GPWS warnings?

Answer 28

Nope

Question 29

Describe Mode 1 of the GPWS

Answer 29

Excessive sink rates. First envelope will say “Sink Rate”, second envelope will say “whoop whoop pull up”

Question 30

Describe Mode 2 of the GPWS

Answer 30

Excessive terrain closure rate. First envelope will say “terrain”, second will say “whoop whoop pull up”

Question 31

Describe Mode 3 of the GPWS

Answer 31

Descent rate after takeoff or a go-around: Will say “Don’t sink”. Active between 50ft and 700ft RADALT.

Question 32

Describe Mode 4A and 4B of the GPWS

Answer 32

Mode 4A is unsafe terrain clearance with gear up. Will say “too low gear” below 190kts, and “too low terrain” above 190kts. Mode 4B is unsafe clearance with flaps up. Will say “too low flaps” below 154kts, “too low terrain” above 154kts.

Question 33

Describe Mode 5 of the GPWS

Answer 33

“glideslope” when at least 1.3 dots off centre scale. Active when on an ILS below 1000ft with gear down.