Warning Systems Flashcards
GPWS provides the following alerts:
Excessive descent rate
Excessive terrain closure rate
Altitude loss after takeoff or go around
Excessive deviation glide slope or path
Unsafe terrain clearance when not in landing config
Improper config
Reaction winsdshear
When does the GPWS glide slope warning go off?
When he aircraft passes through 1,000 ft AGL on approach and excessive deviation exists
Altitude loss after takeoff. When below 1,500 AGL and aircraft is losing altitude what two alerts could be heard?
“Don’t sink”
“Too low terrain”
When does the “Too low Gear” aural warning happen?
When the aircraft descends below 500’ AGL AND SLOWER THAN 190 knots
When does the aural warning “Too low Flaps” happen?
If flaps aren’t extended to Flaps 30 or greater
Aircraft descends below 245’ AGL
Speed less than 159 knots
The “ Glide slope” aural warning happens when?
Below 1,000’ AGL on approach:
- 1.3 dots below glide slope
- 2 dots below glide slope volume/ interval increases
When does the aural warning “Bank Angle” happen?
Altitude between 30-130’, bank angle exceeds 10 degrees
When does aircraft GPWS give winsdshear aural alerts?
When below 1,500’ RA
EGPWS will generate a “Caution Terrain “ aural under what conditions?
40-60 seconds from projected impact
EGPWS will generate a “Terrain Terrain Pull Up“ aural under what conditions?
20-30 seconds from projected impact
The protection feature Terrain Clearance Floor (TCF) provides what aural warnings and when?
-Available throughout entire flight
-700’ protection up to 15NM from the airport
-lowers as you get closer to the airport
“TOO LOW TERRAIN”
What runways are in the worldwide database for the GPWS TCF and RFCF?
Runways at least 3,500’ long
Runway Field Clearance Floor dimensions of protection?
5NM out from airport
Up to 300’ AGL
What does dotted red terrain mean on the ND?
More than 2,000’ above airplanes altitude
What does dotted amber terrain mean on the ND?
Terrain 500’ (250’ w gear down) below to 2,000’ above airplanes current altitude
