EICAS System

Question 1

After the failure of ED1, how can the status page be displayed?*

Answer 1

Either Select the MFD Reversionary Panel to EICAS or select the EICAS selector on the source selector panel to ED2

Question 2

If one of the DCU disable switchlights is pressed, all voice messages will be inhibited except for _____and _______ warnings.

Answer 2

EGPWS/TCAS.

Question 3

In the event of power failure of the EICAS Control Panel (ECP), what buttons will still be operational?

Answer 3

PRI/STAT/CAS/STEP.

Question 4

When can caution messages can be paged and boxed?*

Answer 4

Paged on the ground with the engines shut down, boxed with both engines at stabilized idle and boxing in flight is a function of WOW

Question 5

What EICAS messages cannot be paged

Answer 5

Warnings (red) and advisories (green).

Question 6

What EICAS messages cannot be removed from view by boxing?

Answer 6

Warnings (red) and advisories (green).

Question 7

If a red warning message is generated on ED1 what other indications will/may accompany it?

Answer 7

Flashing Master Warning light, triple beep, and possible aural warning depending on the cause of the alert.

Question 8

Are the two EICAS cooling fans powered by the battery bus?

Answer 8

No

Question 9

Why is it important to provide APU or external electrical power to the aircraft within 5 minutes of energizing the battery?

Answer 9

To prevent the EICAS screens from overheating without the cooling fans

Question 10

What gathers data for EICAS display?

Answer 10

The two days concentrator units

Question 11

How many chimes for a Caution/warning message?

Answer 11

1 chime and 3 chimes respectively

Question 12

Name a few of the aural warnings that DCU’s can generate.

Answer 12

The fire bell, the warbler for stall, the clacker for an overspeed, the siren for wind shear and terrain

Question 13

when will the oil pressure gauges be present on the primary display in addition to the digital readout?

Answer 13

With the engines shutdown or with low oil pressure

Question 14

When will the N1 Vibration gauges replace the oil gauges?

Answer 14

With engines running and normal oil pressure

Question 15

How is N2 vibration monitored?

Answer 15

System monitors N2 vibration independently without display. If the N2 vibration exceeds a predetermined amount, VIB will be displayed inside the N2 gauge.

Question 16

When will the flaps gauge disappear?

Answer 16

With the wheel brake temperatures in the normal range, and the gear and slats and flaps retracted.

Question 17

What do the EICAS display colors mean and what are they?

Answer 17

Red- Warning

Amber- Caution

Green- Advisory

White- Status

Question 18

What powers the two EICAS screens?

Answer 18

The battery bus

Question 19

When will the wheel brake temperature indicators disappear?

Answer 19

With the wheel brake temperature in normal range, gear, slats, flaps retracted

Question 20

When can you box Caution messages and how?

Answer 20

By pressing the CAS button with both engines running. New messages will appear above the boxes MSG icon.

Question 21

When are certain Caution messages inhibited during takeoff?

Answer 21

Short answer: thrust lever advancement to 400ft

Long answer: with the power greater than 79 percent N1 to 100 KIAS some messages will be inhibited. When speed is greater than 100 KIAS up to 400ft on the radar altimeter most messages will be inhibited

Question 22

When are certain Caution messages inhibited on landing?

Answer 22

400AGL to weight on wheels plus 30 sec or when climbing above 400ft

Question 23

What will happen if ED1 fails?

Answer 23

The primary page will automatically display on ED2

Question 24

If ED1 fails, the primary page will revert to ED2. How can the synoptic pages be viewed?

Answer 24

Select EICAS on the MFD reversionary panel and use the ECP (EICAS control panel) to cycle through synoptic pages. OR select the ED2 on the source select panel to uninhibit the ECP, then select the desired synoptic page.

Question 25

Name several conditions that must be satisfied for the TAKEOFF CONFIG OK advisory message to be displayed?

Answer 25

Parking brake off

Flight spoilers stowed

Flaps between 8 and 20

Stabilizer trim inside green takeoff band

Rudder trim inside takeoff range (< plus or minus 1 degree)

Aileron trim inside take-off range (< plus or minus 1 degree displayed in green)

Autopilot off

Question 26

Which EICAS screen does the panel control?

Answer 26

ED2, unless the EICAS knob is repositioned on the source selector panel.

Question 27

What do the buttons on the control panel and what do they do?

Answer 27

PRI displays primary eng display on ED2

STAT displays the status page on ED2, box white status messages

ECS displays the environmental control system synoptic page

HYD displays HYD synoptic page

FUEL displays fuel system synoptic page

F/CTL displays flight control synoptic page

A/ICE displays anti ice synoptic page

DOORS displays aircraft doors synoptic pg

CAS boxes amber msgs with both eng running or cycles pages with engines shutdown

MENU displays oil quantities and fuel used reset line. Up Down arrow keys move cursor up down on MENU page

STEP steps through synoptic pages in successive order on ED2

SEL used to make selections from the MENU page or maintenance pages