21.   In the aftermath of the crash, the National Transportation Safety Board suggested that ATR planes be grounded in icy conditions until it completes its investigation.

22.   Investigators suspect that icy conditions more severe than the standards for which the plane was certified were also a cause of the crash.

23.   It can handle icy conditions or dry roads making winter driving more bearable.

24.   Nichols believes that those icy conditions must have impeded settlement southward from the Bering crossing.

25.   Patchy freezing rain and drizzle will cause icy conditions over parts of central and southwestern Texas.

26.   Recent tests show that the ATR planes perform properly in certain icy conditions, the manufacturer and the FAA said.

27.   Rival FedEx Corp. endured low visibility and icy conditions at its central package sorting hub in Memphis.

28.   Such vehicles definitely are useful in icy conditions and for dealing with snowy mountain passes, or of course navigating mountain Jeep trails.

29.   The Canadiens did not arrive in New York until late Thursday afternoon because of icy conditions in Montreal.

30.   The ATR planes were banned from flying in icy conditions after the crash.