Ice and Rain Protection Flashcards

1
Q

What are the two types of protection against ice accumulation?

A

Electric and pneumatic

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2
Q

Where is ice buildup prevented?

A

W-Wing leading edges
W-Windshield
E-Engine cowl inlets/bullet
A-Aft drain mast/ forward drain mast
P-Probe sensors

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3
Q

Describe ice detection system.

A

It’s comprised of two independent systems
consisting of two ice detectors: one
mounted below pilot window and one
below copilot window.

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4
Q

When does cyan Ice Detected CAS
message extinguish?

A

Ice accumulation < 0.02” for three (3)
minutes

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5
Q

With switches in auto, when does
cowl and wing heat cease?

A

Approximately two (2) minutes after Ice
Detected message extinguishes; it varies.
Ref: Flight test verification / sim
certification

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6
Q

Describe WAI system?

A

It consists of two independent control
systems, pneumatically linked via
crossover duct. One system provides WAI
for left wing and one provides WAI for
right wing.

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7
Q

Where is WAI exhausted overboard?

A

Hot air flows through leading edge of each
wing, passes through main wheel well,
and through two screens aft of wheel well
on bottom of aircraft

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8
Q

What happens when WAI is selected
to On?

A

WAI operates regardless of altitude or ice
detection.

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9
Q

What do blue wing anti-ice lines
indicate on ECS/PRESS synoptic
page?

A

WAI temperature ≤ 100°F

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10
Q

What do green wing anti-ice lines
indicate on ECS/PRESS synoptic
page?

A

Normal temperature (100 to 180°F)

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11
Q

What do amber WAI lines indicate on
ECS/PRESS synoptic page?

A

Abnormal condition: wing temperature
< 100°F for several minutes after it’s
commanded to On or > 180°F

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12
Q

In regards to FMS programming, what
must you do if you plan to takeoff
with WAI and CAI selected to On?

A

Remember to select Cowl+Wing in TSC
Perf Takeoff AC Cfg or V Speeds will
remain amber after parking brake release

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13
Q

Where is CAI exhausted overboard?

A

Hot air travels through CAI supply duct to
heat lip skin and exhausts overboard
through vent located at bottom of engine

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14
Q

What happens when CAI is selected
On?

A

CAI valve opens regardless of altitude or
ice detection.

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15
Q

What kind of rain removal system
does the aircraft have?

A

There’s a surface coating on windshield
that deflects water

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16
Q

What’s the caution associated with
removal of ice from windshield?

A

Use of mechanical means to remove ice
from windshield causes degradation and
should be avoided

17
Q

What happens when EVS Window
Heat is selected?

A

The switch blooms cyan, EVS window
graphic turns green and EVS window
heats for five (5) minutes. Otherwise,
operation is automatic if aircraft is
airborne and ice is detected.

18
Q

What happens when Cabin Window
Heat is selected on the ground?

A

The switch turns green and cabin windows
are heated for ten (10) minutes: they’re
heated automatically airborne.

19
Q

What happens when TAT Probe Heat
is selected on ground?

A

The switch turns green and TAT probes
are heated for one (1) minute; otherwise
not heated on ground < 100 kts