FCOM VOL2 Warning Systems.

Question 0

What happens when pseu light illuminates in flight?

Answer 0

It won’t, inhibited from from thrust advance to 30secs after touch down.

Question 1

Why does the proximity switch electronic unit illuminate?

Answer 1

Fault in pseu, over wing exit fails to disengage when commanded.

Question 2

When does the landing gear warning cutout switch not work?

Answer 2

When flaps are greater than 10 and below 200ft

Question 3

When will the altitude readout box turn Amber when deviating away from selected altitude?

Answer 3

200-900ft.

Question 4

What does pushing the BELOW GLIDESLOPE
P-inhibit
do?

Answer 4

Inhibits below glideslope alert below 1000ft rad alt.

Question 5

Why does the gpws inop illuminate?

Answer 5

GPWS computer malfunction or power loss.

Or invalid inputs.

Question 6

Where does the gpws receive its inputs from? (7)

Answer 6

Radio altimeter, ADIRU, ILS receiver, FMC, IRS, stall management computers or the EFIS control panel.

Question 7

What does the terrain inhibit switch do?

Answer 7

Inhibits look ahead terrain and terrain display.

Question 8

Solid red terrain display?

Answer 8

Look ahead terrain warning active.

Question 9

Solid Amber on terrain display?

Answer 9

Look ahead terrain caution active.

Question 10

Dotted red on terrain display?

Answer 10

Terrain 2000ft above

Question 11

Dotted Amber?

Answer 11

Terrain 500ft (250ft with gear down) below a/c up to 2000ft above a/c.

Question 12

Dotted green on terrain display?

Answer 12

Terrain 2000ft below to 500ft (250ft with gear down) below a/c.

Note terrain within 200ft of airport elevation does not show.

Question 13

Dotted magenta on terrain display?

Answer 13

No terrain data available.

Question 14

When will the terrain display automatically display?

Answer 14

When there is a look ahead terrain alert and
Neither pilot has terrain displayed and
In Expanded map, centre map, expanded VOR or expanded APP modes.

Question 15

When will weather display automatically display?

Answer 15

When windshear alert occurs and
Neither pilot has weather selected and
Nav display in either expanded map mode, centre map mode, expanded VOR mode or expanded APP mode.

Question 16

What will cause the intermittent warning horn and t/o config light to illuminate? (7).

Answer 16

TE Flap not in t/o position 1-25 or
TE Flap skew or asymmetry or uncommanded motion or
Leading edge flaps not in T/0 position or have uncommanded motion or
Speed brake lever is not in the DOWN position or
Spoiler control valve is open providing pressurised hydraulic fluid to the ground spoiler interlock valve or
Park brake is set or
Stab trim not in T/O range.

Question 17

The PSEU monitors which systems?

Answer 17

T/o and ldg config warnings,
Landing gear and
Air/ground sensing.

Question 18

Which GPWS alerts are radio altitude based alerts?

Answer 18

Excessive descent rate,
Excessive terrain closure rate,
Altitude loss after t\o or GA,
unsafe terrain clearance when not in landing config,
Excessive deviation below ILS glide-slope.

Question 19

What are look ahead terrain alerts based on?

Answer 19

A/c position, barometric altitude, vertical flight path and groundspeed.

Question 20

How long until projected impact for TERRAIN TERRAIN PULL UP alert?

Answer 20

20-30seconds.

Question 21

How long until projected impact for CAUTION TERRAIN, warning?

Answer 21

40-60seconds.

Question 22

Name the 8 radio altitude based GPWS Alerts?

Answer 22

Pull up,
Terrain,
Don't Sink,
Glideslope,
Sink rate,
Too low flaps,
Too low gear,
To low terrain.

Question 23

When will you get obstacle alert?

Answer 23

Man made obstacles 100ft or greater.
OBSTACLE OBSTACLE PULL UP.
20-30seconds until projected impact.

Question 24

What is difference between windshear alert and warning?

Answer 24

Alert is predictive look ahead,

Warning is when a/c is in windshear.

Question 25

How is a windshear warning annunciated and when is it enabled?

Answer 25

Two tone siren followed by WINDSHEAR, red windshear on both attitude indicators.
Enabled below 1500ft
And after rotate.

Question 26

Aural alert is windshear ahead, what visual alerts are shown and when is it enabled?

Answer 26

Red windshear msg displayed on both at indicator and Nav display,
Windshear symbol on Nav display.

Enabled during T/O until 1200ft

Question 27

Aural warning is GO AROUND WINDSHEAR AHEAD, what are the visual warnings and when is this warning enabled?

Answer 27

Red windshear msg on Nav display and attitude indicator, red wind shear symbol on Nav display.

Shows when windshear detected within 1.5nm, on app below 1200ft.

Question 28

The aural msg is monitor radar display, what visual warnings will you receive and when is it active?

Answer 28

Red windshear msg on attitude indicator, Amber msg on Nav display,

Indicates windshear within 3nm ahead of a/c.
Enabled below 1200ft for t/o and app.

Question 29

When will you receive an AIRSPEED LOW AIRSPEED LOW aural alert?

Answer 29

When airspeed reduces into the minimum manoeuvre speed Amber band.

Question 30

What height is windshear warning active until vs windshear alert height?

Answer 30

Warning 1500ft

Alert 1200ft

Question 31

Name the 3 predictive wind shear alerts?

Answer 31

1. Wind shear ahead. Enabled on t/o below 1200ft
2. Go-around wind shear ahead. Wind shear within 1.5nm ahead and enabled below 1200ft on app.
3. Monitor radar display. Wind shear within 3nm enabled below 1200ft on t/o and app.

Question 32

Where is a wind shear warning derived from?

in windshear

Answer 32

GPWS

Question 33

Where are predictive wind shear warnings derived from?

Answer 33

Wx radar

Question 34

When is a windshear warning available?

Answer 34

Below 1500ft