ANTI ICE AND WINDOW HEAT Flashcards

1
Q

Describe what happens when nacelle anti‐ice is commanded on?

A

•NAI valve opens
•Selected engine igniters operate continuously
•Engine PRV opens when the NAI valve is open

FCOM 2; 3.10.2

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2
Q

The 747-8 EICAS msg BLD LOW TEMP indicates __?

A

•Engine bleed air too low for sufficient wing anti-icing

FCOM 2; 747-8; 3.20.2

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3
Q

Does the Nacelle Anti-Ice AUTO position function on the ground?

A

No, the AUTO function only works in flight

FCOM 2; 3.10.2

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4
Q

How many ice detection probes are there, and where are they located?

A

Two probes are located on the forward fuselage

FCOM, VOL 2; 3.20.1

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5
Q

How many angle of attack probes are provided, and when are they heated?

A

•2 angle of attack probes
•Electrically heated when any engine is operating

FCOM, VOL 2; 3.20.3

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6
Q

How many pitot‐static probes are provided, and when are they heated?

A

•4 pitot‐static probes
•Electrically heated when any engine is operating.

FCOM, VOL 2, 3.20.3

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7
Q

Window heat ON switches provide both anti-icing and anti-fogging
protections to which flightdeck windows?

A

Forward left and right windshields only

FCOM, VOL 2; 3.10.4

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8
Q

On the -400, what indications are displayed, on primary EICAS,
when the nacelle anti‐ice and/or the wing anti‐ice valve is open?

A

•“NAI” for nacelle anti‐ice
•“WAI” for wing anti-ice

FCOM, VOL 2; 3.10.4

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9
Q

On the -8, what indications are displayed, on primary EICAS,
when the nacelle anti‐ice and/or the wing anti‐ice valve is open?

A

•“EAI” for engine nacelle anti‐ice
•“WAI” for wing anti-ice

FCOM, VOL 2; 3.10.4

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10
Q

Is wing antiice effective with the leading edge flaps extended?

A

No, wing anti‐ice is ineffective when the LEF are not retracted.

FCOM, VOL 2; 3.10.2

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11
Q

Can you operate the wing anti-ice system on the ground?

A

No, WAI system is inhibited on the ground.

FCOM, VOL 2; 3.10.3

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