The fatal crash of a Simmons Airlines ATR-72 last November has shed more light on an unusual - and hazardous - icing phenomenon, and FAA is considering new training and test procedures that may be incorporated in aircraft manuals to handle such weather patterns. The ATR-72, which crashed Oct. 31 over Roselawn, Ind., killing all 68 people aboard, encountered what weather experts called "super cooled drizzle drops," leading to a buildup of ice on the upper part of the wing that ultimately ...

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