According to the investigators, the warning signs were there. Airframe icing was imminent, and the airplane needed to be protected. But the warning signs were not heeded, and the protection was not provided. Moreover, the airspeeds used by the pilot during the final stages of the nonprecision approach were too slow for the existing conditions. The subsequent ice-induced stall occurred at an altitude too low to permit recovery. The Embraer EMB-500 Phenom 100 descended out of control and struck three houses near the approach end of the runway at Montgomery County Airpark in Gaithersburg, Maryland, U.S. Three people in one of the houses were killed, as were the pilot and his two passengers. The airplane was destroyed by the impact and post-impact fire.
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