WASHINGTON -
The F-35 has been cleared to fly again.
The U.S. Air Force grounded all F-35 flights nationwide last week after a routine inspection found a crack on an engine blade.
The Pentagon says no additional cracks have been found, so all 51 jets have been cleared to resume flight operations.
The F-35 is still in the development phase. The Vermont Air National Guard hopes to be one of the first bases to get the planes when they go into regular service.
