A human-centered systems analysis was applied to the
adverse aircraft weather encounter problem in order to
identify desirable functions of weather and icing
information. The importance of contingency planning was
identified as emerging from a system safety design
methodology as well as from results of other aviation
decision-making studies. The relationship between
contingency planning support and information on regions
clear of adverse weather was investigated in a scenariobased
analysis. A rapid prototype example of the key
elements in the depiction of icing conditions was
developed in a case study, and the implications for the
components of the icing information system were
articulated.National Aeronautics and Space Administration Glenn Research Center under grant NAG3-217
