Warning Systems Flashcards
When are Radio Altimeter callouts provided on an approach?
“FIVE HUNDRED” is the only callout if not on a non-ILS approach
How is the GPWS Windshear Warning alert indicated?
WINDSHEAR on the attitude indicator and voice alerts
What does dotted green terrain display on the navigation display indicate? Amber? Red? Magenta?
Green: 2000’ to 500’ below
Amber: 500’ below to 2000’ above
Red: >2000’ above
Magenta: Invalid data
What triggers an aural “CAUTION TERRAIN” alert with an amber TERRAIN message?
40-60 seconds from impact
Is Doppler turbulence detection capable of detecting clear air turbulence?
No
WX+T only provides turbulence within how much range?
40nm
For takeoff, when does the PWS activate if the WXR switch is not selected ON during taxi?
Thrust lever angle above 53 degrees
Does the weather radar provide alerting for all types of windshear?
The weather radar detects microburst and other windshears with similar characteristics. The weather radar does not provide alerting for all types of wind shear.
The predictive windshear (PWS) alert area extends how far?
3 NM ahead, +/- 30 degrees
When is predictive windshear alerting available on the ground after weather radar starts scanning ?
12 seconds
What are the aural annunciations of the Predictive Windshear System
Caution: MONITOR RADAR DISPLAY
Warning During Take Off: WINDSHEAR AHEAD, WINDSHEAR AHEAD
Warning During Approach: GO AROUND, WINDSHEAR AHEAD
When is the Runway Awareness and Advisory System (RAAS) enabled?
RAAS operates automatically, without any action from the Flight Crew.
What are the TCAS advisory symbols? Resolution advisory symbol?
Advisory symbol: Amber circle
Resolution advisory symbol: Red square
What indicates that the TCAS computer is not computing RAs, but only TAs
TA ONLY message displayed on the Navigation Display
When will the TCAS system issue the aural advisory, “CLEAR OF CONFLICT”? “MONITOR VERTICAL SPEED”?
CLEAR OF CONFLICT - RA encounter terminated. Maneuver guidance no longer displayed
MONITOR VERTICAL SPEED - Present pitch attitude is outside the RA pitch command area. Keep pitch attitude away from red area.