Ice And Rain Protection

Question 1

With engine bleed off is EAI still available?

Answer 1

Each engine has its own anti-ice system, with an independent hot bleed air source.

Question 2

What parts of the engine are covered by engine

anti-ice?

Answer 2

Each engine has its own anti-ice system, with an independent hot bleed air source to anti-ice the engine air inlet

Question 3

When is ANTI-ICE on engine

Answer 3

When the flight crew sets the applicable ENG ANTI ICE pb to ON, the engine anti-ice valves of the selected engine open

Question 4

If the EAI valve lose power, what happens

Answer 4

Each valve is electrically-controlled and pneumatically-actuated. The valve opens, if it loses its power supply.

Question 5

When is Wing and Engine Antice automatic?

Answer 5

NEVER. When the flight crew sets the applicable ENG ANTI ICE pb to ON, the engine anti-ice valves of the
selected engine open.When the flight crew sets the WING ANTI ICE pb to ON, both wing anti-ice valves open.

Question 6

For Wing Anti Ice

Answer 6

When the flight crew sets the WING ANTI ICE pb to ON, both wing anti-ice valves open.
Each valve is electrically-controlled and pneumatically-actuated. The valve closes, if it loses its power supply

Question 7

Water / waste anti-ice. How does it work? Did

Answer 7

The water lines are automatically heated to prevent ice formation, which could lead to damage and/or
obstruction of the water lines.
Water lines heating is monitored and controlled by three Ice Protection Control Units (IPCU).

Question 8

What does Amber WING A-ICE indication on

BLEED SD mean?

Answer 8

Wing anti-ice is commanded off but remains on
Wing anti-ice is commanded on but the associated valve remains abnormally closed
An abnormal pressure is detected.