11.   Final flight tests under icy conditions still must be completed before Federal Aviation Administration certification is granted.

12.   Farther south, icy conditions from the same weather front caused more power blackouts in Louisiana and Texas.

13.   For example, plane manufacturers must prove that their aircraft can fly in icy conditions when water droplets of a certain size are present.

14.   Frigid temperatures and icy conditions are hard on cars in general, and often prove fatal to aging batteries.

15.   Hardekopf reluctantly admitted that he had spent several days in a Russian hospital recovering from his exposure to the icy conditions.

16.   Icy conditions were expected in the southern Appalachians on Thursday as the storm system moved east.

17.   Icy conditions stranded thousands of travelers at Dorval International Airport, in Montreal.

18.   In discussing possible problems in using the autopilot in icy conditions, aviation experts said that the autopilot could gradually compensate for the buildup of ice on the wings.

19.   In icy conditions this section might cause a beginner some trouble, but today the snow is soft and forgiving.

20.   In snow and icy conditions, ABS can save a lot of body work.