Windshear

Question 1

WINDSHEAR AHEAD

Answer 1

Red WINDSHEAR on both attitude indicators

RED windshear symbol on navigation display

Red WINDSHEAR message on navigation display (all modes)

Windshear close to and directly ahead of the airplane detected by the weather radar.

Enabled during takeoff, below 1,200 feet RA.

Predictive windshear symbol on the navigation display shows windshear position (expanded MAP, center MAP, expanded VOR or expanded APP modes only).

Question 2

GO AROUND, WINDSHEAR AHEAD

Answer 2

Red WINDSHEAR on both attitude indicators

RED windshear symbol on navigation display

Red WINDSHEAR message on navigation display (all modes)

Windshear within 1.5 miles and directly ahead of the airplane detected by the weather radar.

Enabled during approach, below 1,200 feet RA.

Predictive windshear symbol on the navigation display shows windshear position (expanded MAP, center MAP, expanded VOR or expanded APP modes only).

Question 3

MONITOR RADAR DISPLAY

Answer 3

RED windshear symbol on navigation display

Amber WINDSHEAR message on navigation display (all modes)

Windshear within 3 miles and ahead of the airplane detected by the weather radar.

Enabled during takeoff and approach, below 1,200 feet RA.

Predictive windshear symbol on the navigation display shows windshear position (expanded MAP, center MAP, expanded VOR or expanded APP modes only).

Question 4

Deviation for Windshear below 1000

Answer 4

Unacceptable flight path deviations are recognized as uncontrolled changes from normal steady state flight conditions below 1000 feet AGL, in excess of any of the following: • 15 knots indicated airspeed • 500 fpm vertical speed • 5° pitch attitude • 1 dot displacement from the glideslope • unusual thrust lever position for a significant period of time.

Question 5

Windshear encountered during takeoff roll:

Answer 5

Windshear encountered during takeoff roll: • If windshear is encountered prior to V1, there may not be sufficient runway remaining to stop if an RTO is initiated at V1. At VR, rotate at a normal rate toward a 15 degree pitch attitude. Once airborne, perform the Windshear Escape Maneuver. • If windshear is encountered near the normal rotation speed and airspeed suddenly decreases, there may not be sufficient runway left to accelerate back to normal takeoff speed. If there is insufficient runway left to stop, initiate a normal rotation at least 2,000 feet before the end of the runway, even if airspeed is low. Higher than normal attitudes may be required to lift off in the remaining runway. Ensure maximum thrust is set.

Question 6

Windshear

Answer 6

AURAL ALERT VISUAL ALERT DESCRIPTION

Two–tone siren followed by WINDSHEAR

Red WINDSHEAR on both attitude indicators.

Excessive windshear at the current airplane position detected by GPWS.

Enabled below 1,500 feet RA.

GPWS Windshear detection begins at rotation.