Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Module 13 EASA Part 7 Book 3 > Chapter 4 - Ground Proximity Warning > Flashcards

Chapter 4 - Ground Proximity Warning Flashcards

1
Q

What are the inputs to GPWS?

A
  • Computer airspeed
  • Barometric altitude
  • Barometric altitude rate
  • Radio altitude
  • Glide slope deviation
  • Magnetic heading
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What would inhibit certain modes of the GPWS?

A

Flap or landing gear position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What happens when the GND PROX FLAP OVRD and GND PROX CONFIG GEAR OVRD switches are activated?

A

Override the flaps up and gear up position information

Simulate a flaps down 25° or gear down condition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does the GND PROX G/S INHB switch do?

A
  • Inhibits the aural and visual mode 5 (below G/S) indications
  • Mode 5 also inhibited during a backcourse landing approach
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Describe the PULL UP light?

A
  • Red
  • Indicates a mode 1 or mode 2A PULL UP warning condition
  • Level A warning
  • Located on the Captain’s Instrument Panel
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe the GND PROX G/S INHB switch?

A
  • Indicate advisory modes 1 through 5
  • Level C advisory message
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the seven modes of GPWS?

A
  1. Excessive descent rate
  2. Excessive closure rate with respect to rising terrain
  3. Loss of altitude after take-off or during go around
  4. Too close to terrain when not in landing configuration
  5. Excessive deviation below glide slope
  6. Radio altitude callouts
  7. Windshear
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the alerting sequence for Modes 1 and 2?

A

Initial annunciation is an alert but if the condition persists, the respective warning replaces the alerts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the alerting sequence for Modes 3, 4, 5 and 6?

A

Alert only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the alerting sequence for Mode 7?

A

Warning only mode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does a GPWS warning consist of?

A
  • A red indication of the PFC
  • An aural annunciation
  • Illumination of the master warning lights
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does a GPWS alert consist of?

A
  • Aural annunciation
  • Illumination of the amber GND PROX G/S INHB light/switch in all cases except Mode 6 (Radio altitude callouts)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is Mode 1 independent of?

A

Landing gear and flap positions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When will Mode 1 indications occur?

A

Below 2,450 ft radio altitude down to 50 ft when the barometric altitude rate exceeds a threshold value

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is the Mode 1 divided?

A
  • Initial penetration (SINK RATE)
  • Inner warning (PULL UP)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the aural messages during Mode 1?

A

Alert - SINK RATE
Warning - WHOOP! WHOOP! PULL UP

17
Q

When is Mode 2A active?

A

When the flaps are at 20 units or less

18
Q

When is Mode 2B active?

A
  • Flaps are down 25-30 units
  • If the aircraft is making an ILS approach within 2 dots deviation
19
Q

When will Mode 3 be active?

A

After take-off or during a missed approach, with the landing gear up and/or the flaps less than 25 units

20
Q

What aural alert will the pilot get in Mode 3?

A

DON’T SINK

21
Q

When are the various parts of Mode 4 active?

A

Mode 4A - During cruise and approach with the landing gear up
Mode 4B - In cruise and approach, but with the landing gear down
Mode 4C - During take-off with the landing gear up and/or flaps less than 25 units

22
Q

When will Mode 6 alert/call outs be repeated again?

A
  • Aircraft ascends above 1,000 feet radio altitude
  • Aircraft makes a transition from approach to take-off
23
Q

What is the most dangerous type of windshear?

A

Microburst

24
Q

Describe microburst and its dangers to aircraft?

A

Column of downward moving air

Most dangerous below 500 feet, where pilots have little time and airspace to recover

25
Q

When is Mode 7 active?

A

Within 1500 feet radio altitude

26
Q

What annunciations are given at windshear?

A
  • Siren sounds and then there is an aural message ‘WINDSHEAR WINDSHEAR WINDSHEAR’
  • Red WINDSHEAR warning message shows on the EICAS display
  • Red WINDSHEAR warning message shows on the PFD
  • Master warning lights come on
  • Other GPWS modes are inhibited
27
Q

For how long are other GPWS modes inhibited in Mode 7?

A

For a minimum of five seconds after a windshear warning, and continues as long as the angle of attack is maintained within five degrees of stick shaker angle of attack

28
Q

What do the ground proximity warning computer and the stall warning computers provide on the PFD?

A
  • Windshear
  • Pull up
  • Pitch limit symbol
29
Q

What causes the stall warning computer to display pitch limit data on the PFD?

A

When the flaps are lowered

30
Q

With regards to the stall warning computer and the GPWS computer, what source selection is used on the PFD?

A

GPWS - no switching
Stall warning - Left PFD will use left stall warning computer, will automatically switch on a fault

Module 13 EASA Part 7 Book 3 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions