GPWS Flashcards

1
Q

What are the 3 enhanced features of the GPWS? What pb controls the enhanced features?

A

Terrain Awareness Display

Terrain Clearance Floor

Runway Field Clearance Floor

TERR pb

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2
Q

What is the difference between the basic and enhanced GPWS features?

A

Basic simply looks at RA while enhanced looks and predicts terrain ahead.

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3
Q

What pb turns the basic functions off?

A

SYS pb

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4
Q

Why would you push the the LDG FLAP 3pb?

A

When landing Flaps 3 instead of FULL. Disables the warning.

However, will warn when not at Flaps 3

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5
Q

What mode will not allow you to display Terrain on the ND?

A

Plan Mode

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6
Q

You get a Terrain Caution, how long until impact?

A

60 seconds

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7
Q

You get a Terrain Caution, how long until impact?

A

30 seconds

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8
Q

At what range will Terrain warnings and cautions be displayed?

A

<160NM

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9
Q

What is the Terrain Clearance Floor (TCF)?

A

System provides min altitudes at various ranges from airports, if airplane is lower than set min altitude you will get a “TOO LOW TERRAIN” alert

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10
Q

What is the difference between the Terrain Clearance Floor and the Runway Field Clearance Floor?

A

The Runway Field Clearance Floor is for high altitude runways significantly higher than surrounding terrain.

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11
Q

What happens when you get a FAULT light on the TERR pb?

A

You have lost:

Terrain Display

Terrain Clearance Floor

Runway Field Clearance Floor

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12
Q

What happens when you get a FAULT light on the SYS pb?

A

All basic GPWS functions are lost but Enhanced features remain

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