ATSB Reports on Windshear-Related Hard Landing

AINsafety » February 10, 2014
February 10, 2014, 1:26 PM

A Fokker F100 charter flight in Western Australia experienced a hard landing on Oct. 12, 2012 after encountering a dry microburst-induced wind shear. No one was injured; however, the aircraft was substantially damaged, including wrinkled skin in the forward and rear portions of the airframe and the deformation of several structural beams. The flight departed Perth Airport headed north to Nifty aerodrome, with the expectation of a few thunderstorms along the way. On a five-mile final approach, the crew received a wind-shear alert and increased airspeed and extended the speed brakes to stabilize the aircraft. Between 80 feet and 30 feet above the surface on short final, the airspeed dropped 110 knots from 133 in a period of three seconds and the rate of descent increased to 1,000 feet per minute. By touchdown, the aircraft was experiencing a 32-knot tailwind. As a result of what was later determined to be a dry microburst, the aircraft hit hard nearly 1,000 feet short of the runway threshold.


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