Anti Ice

Question 1

What is used to heat with the anti ice system?

Answer 1

Either hot air (pneumatic) or electrical heating

Question 2

What does the pneumatic system heat? How do we activate the anti ice system for this?

Answer 2

1. The 3 outboard leading edge slats of each wing

2. Via the Wing anti ice pb on the overhead panel

Question 3

How are the engines heated? How do we turn on the heat for this? What happens in case of a fault in the electric power supply, des the valve stay open or close?

Answer 3

1. Each engine air intake is anti iced by an independent air bleed from the high pressure compressor
2. Through the ENG 1 or 2 pb on the anti ice panel
3. Stays open

Question 4

What does electrical heating heat? How do we activate this?

Answer 4

1. It heats:
A. Windshield and anti 
B. Icing and cockpit side C. window de fogging
D. The AOA probes
E. The TAT probes
F. The Pitot probes
G. The Static Ports
H. The water waste drain mast (on the ground, the heat is reduced to prevent injury to personnel)

2. Through the Probe/Window Heat pb on the anti ice overhead panel

Question 5

What are the ice detection systems of the aircraft?

Answer 5

1. An external ice indicator with lights is installed between the 2 windshields
2. An optional ice detection system installed below the nose

Question 6

When does Window Heating start?

Answer 6

After the start of the first engine

Question 7

If one engine anti ice fails, does the other take over and supply anti ice for both engines?

Answer 7

No

Question 8

Are the engine anti ice displayed on the ECAM Bleed page when turned on?

Answer 8

No. Only the Wing Anti Ice (when turned on) is displayed on the Bleed page (green or amber triangles)

Question 9

APU Bleed Air may be used until what altitude?

Answer 9

20,000ft

Question 10

With the Wing and Engine anti ice turned on, what do you expect to see on the ECAM Memo?

Answer 10

Ignition, Engine A. Ice, Wing A. Ice

Question 11

Which wing (left or right) does the Wing Anti Ice pb on the overhead panel give heat to electrically when turned on?

Answer 11

Both wings

Question 12

Selecting Wing Anti Ice increases Idle Thrust and reduces the EPR limit. What would be the negative effect to this?

Answer 12

Reducing EPR limit can reduce a climb and increasing Idle Thrust can increase the descent profile, compensate by extending the speed brakes

Question 13

What does Cold Soaked mean?

Answer 13

The fuel is very cold due to just landing and passing through a very cold area or fuel distributed was very cold

Question 14

What happens to the ignition when the Engine Anti Ice is turned on?

Answer 14

Ignition is turned on automatically by FADEC

Question 15

What happens to the Engine Anti Ice valves when they fail, pneumatically or electrically?

Answer 15

No pneumatic, fails in the closed position

No electric, fails in the open position

Question 16

What do you expect to happen to the wing anti ice upon landing?

Answer 16

It will shut off, amber fault light will appear. This means the valve is off and the pb is set to on. Turn off the pb to remove the fault.