number of severe windshear encounters and conducted studies to determine the criticality of flight variables like airspeed, altitude, inrust-to-weight ratio, This effort has resulted in the identification of a number of items that should be considered when establishing alert threshold, flight procedures, and training requirements.
(2) Warning Only System. The procedure added to the AFMS should contain the following basic elements:
(i) Aggressively apply maximum rated thrust, disengaging autothrottle if necessary.
(ii) Rotate smoothly at a normal rate to the go-around/takeoff pitch attitude and allow the airspeed to decrease, if necessary.
(iii) If the airplane is descending, increase pitch attitude smoothly and in small increments, bleeding airspeed as necessary to stop the descent.
(iv) Use stall warning onset as the upper limit of pitch attitude.
(v) Engine overboost should De avoided unless the airplane continues to descend and airplane safety is in doubt. When airplane safety has been assured, adjust thrust to maintain engine parameters within approved NOTE: Overboosting engines while at angles of attack near airplane stall warning may cause engine stall, surge, or flameout.
(vi) Do not retract flaps or landing gear until safe climb-out is assured.
(3) Warning with Escape Guidance System. In addition to providing the intormation and procedures peculiar to the new system, a statement should be should be followed until the maneuver has been safely completed.
LEROY A. KEITH Manager, Aircraft Certification Division Par 6 - 13
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