Ice and Rain Protection

Question 1

How are the leading edge of the wings heated?

Answer 1

Bleed air

Question 2

When does windshield heat automatically turn on?

Answer 2

When 2 AC sources are in use

Question 3

What will happen to windshield wipers on a dry surface?

Answer 3

Stop or get stuck

Question 4

When do ADS probes turn on automatically?

Answer 4

When the engine is started

Question 5

If the ice protection panel button are pushed in and dark what are they set to?

Answer 5

Auto

Question 6

What components get anti-ice from bleed air?

Answer 6

Engine inlets

Wing leading edge

Question 7

What is the maximum windshield wiper speed?

Answer 7

250 KIAS

Question 8

When is portable water dump disabled?

Answer 8

When the landing gear is down

On the ground.

Question 9

If set to auto, when will ice protection turn on in flight?

Answer 9

If ice is detected

Question 10

Where is ice protection system information shown?

Answer 10

Anti-Ice Synoptic page on MDF

And on EICAS

Question 11

During cold weather operations of more than 30 minutes in icing conditions, what must be done with respect to fan vibration due to ice?

Answer 11

Increase thrust to 54% N1 for ice shedding

Question 12

How many ice detectors are installed?

Answer 12

2

Question 13

When is windshield heating automatically turned on?

Answer 13

When powered by 2 AC sources

On the ground 1 AC source for power up BIT

Question 14

How long is the windshield heat power up BIT?

Answer 14

120 seconds after one AC source is applied

Question 15

When will only the FO’s windshield heat be on?

Answer 15

If there is only one AC source and the captains side is INOP

Question 16

After takeoff you get an EICAS message “AI WING VALV OPEN.” What does this mean on a clear day?

Answer 16

Anti ice is conducting a normal test.
10/10/10

10 minutes
10,000
10 F rise (60 seconds)

Question 17

If ice protection is OFF, when is the earliest the anti-ice will turn on?

Answer 17

1700 AGL

2 minutes after takeoff

Question 18

The APU is deferred and the captain elected to taxi out single engine. Which windshield is heated?

Answer 18

Neither after the power up BIT is completed

Question 19

ATIS: OVC015 7/7

What should the MCDU anti-ice takeoff date be set to?

Answer 19

ENG

Question 20

During a single engine taxi which probes / TATs are being heated?

Answer 20

All probes

Question 21

How can we tell the anti-ice system what to do in auto mode?

Answer 21

By programming the T/O Dataset in the MCDU

Question 22

When should we program ENG in the anti ice?

Answer 22

When OAT is below 10 C and there is visible moisture

present below 1700 AFE

Question 23

How do we use ice protection if MCDU has failed?

Answer 23

Turn it to on

Question 24

Where do we have ice protection?

Answer 24

Wings and Engine inlets

Question 25

When is the soonest the wing anti ice will turn on set to ALL on takeoff?

Answer 25

40 KTS

Question 26

We see anti ice wing valve open on a climb out of PHX. Is

this normal?

Answer 26

Yes the anti ice will conduct a test at 10,000 feet or 10

mins after departure for a 10F rise or 60 seconds

Question 27

If we get a stall protection ice speed EICAS message, what speeds are used for landing?

Answer 27

Ice speeds

Question 28

If you did not turn on ENG or ALL when would the soonest the anti ice would turn on?

Answer 28

2 minutes or 1700 AFE

Question 29

When do we use the test knob?

Answer 29

Don’t touch it, it’s for maintenance