ANTI-ICE Flashcards Preview

BOEING 787 > ANTI-ICE > Flashcards

Flashcards in ANTI-ICE Deck (13)
Loading flashcards...
1

What is included in the ANTI-ICE SYSTEM

Automatic anti-ice detection

Engine anti-ice

Wing anti-ice

Pack anti-ice

Windshield wiper

Probe heat

Window Heat.

2

When the AUTOMATIC ICE DETECTION is inhibited

ON GRD SPEED BELOW 75 KTS

3

How the AUTOMATIC SYSTEM DETECTION WORKS?

Measuring the liquid water content and TAT

4

Engine Anti-Ice operation

When is turned ON will use the bleed air to protect the core and the cowl of the engine ,the automatic function is inhibited on grd but the system can be turned ON manually

5

When the Engine Anti-Ice close automatically

During engine start
Bleed over temperature/ over pressure
Fire switch pulled or when a leak is detected

6

How does it work the WAI?

When icing conditions are detected the system automatically heat the mats on the slats in each wing simmetrically

7

Is the WAI inhibited?

Yes on grd below 75 kts

8

Can the WAI be shed?

Yes can be load shed for a max of 30 secs during high loads demand and will be done symmetrically not to lose aerodynamic stability

9

If the WAI switch is ON when the system turns ON?

Will turn ON the WAI whenever temperature are below 25 degrees

10

What happend to the maneuver margin when WAI EAI are turned ON?

With flaps extended it adjust the stick shacker logic and maneuver margin reduces,while with the flaps up no adjustment needed

11

When is inhibited the PACK INLET ANTI ICE

The pack inlet is inhibited on ground and with TAT above 10 degrees

12

What is the flight deck window heat system?

A system that protect the frontal window from anti-fogging and anti-ice while the side window have only anti fogging

13

How the probes are heated?

The probes are heated using electrical power when either engine is operating