Ice

From:         laewell@iastate.edu (Lars A Ewell)
Organization: Iowa State University, Ames, Iowa (USA)
Date:         09 Nov 94 00:51:25 
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To Whom it May Concern,

	I was puzzled to learn that ice on the
wings is being considered in the investigation of the
recent crash of the American Eagle ATR over Indiana.
It was my understanding that icing occured while the
plane was waiting on the runway and not while it was
in the air such as in the crash at LaGuardia in 3/92.
Also, I saw on the MacNeil-Lehr News Hour that the 
ATR that crashed had the capacity to de-ice the wings in
flight (at least that's what I understood).

	Can anyone shed some light on this?

	thanx,

	Lars Ewell