Warning Systems Flashcards
What does dotted green terrain display on the navigation display indicate? Amber? Red? Magenta?
a. Red : > 2,000ft above
b.Yellow : 500ft below to 2,000ft above,
c. Green: 2,000ft to 500ft below,
d. Magenta: invalid data.
Is Doppler turbulence detection capable of detecting clear air turbulence?
No
What triggers an aural “CAUTION TERRAIN” alert with an amber TERRAIN message?
40 - 60 seconds from impact.
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?
No, just PWS
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?
12s later
When will the TCAS system issue the aural advisory “CLEAR OF CONFLICT”? “MONITOR VERTICAL SPEED”?
RA encounter terminated. Maneuver guidance finished.
What triggers a “WINDSHEAR AHEAD” aural alert?
3 consecutive sweeps of radar with alert criteria detected
What are TCAS traffic advisory TA symbols? Resolution Advisory RA symbols?
a. TA (AMBER dot)
b. RA (RED box)
When are TCAS RAs inhibited?
RAs below 1000ft, TA ONLY
How does the RUNWAY AWARENESS and ADVISORY SYSTEM (RAAS) operate?
Automatically Uses GPS and airport database to advise flight crew of which rwy they are approaching.
When could you receive an aural and visual WINDSHEAR alert on approach?
<1500’ RA to10’ AGL,
Takeoff?
<1500’ RA
What indicates that the TCAS computer is not computing RAs, but only TAs?
TA Only message on ND
