On Wednesday, February 7, 2001, the Airbus A320 encountered a microburst-induced wind shear on final approach leading to the collapse of the aircraft's landing gear.
The aircraft was irreparably damaged and was decommissioned, making it the ninth loss of an Airbus A320 at that time.
This accident prompted Airbus to develop a fail-safe modification for its flight control software by preventing the airplane's built-in protection against stall from being activated by a high rate of change for the angle of attack.
The crew decided to perform a go-around, but the aircraft failed to respond, causing the plane's landing gear to collapse.
The aircraft was substantially damaged and written off, making it the ninth hull loss of an Airbus A320.
The investigation by the CIAIAC concluded: The activation of the angle of attack protection system, which, under a particular combination of vertical gusts and windshear and the simultaneous actions of both crew members on the sidesticks, not considered in the design, prevented the plane from pitching up and flaring during the landing.
[1]This accident prompted Airbus to develop a modification for its flight control software by preventing the airplane's built-in protection against stall from being activated by a high rate of change for the angle of attack.