Airport officials in Wisconsin Rapids are trying to get their runways up to full service again.
On Friday, the Federal Aviation Administration put a temporary stop to all flights on ultralight and unregistered aircraft at Alexander Field in Wisconsin Rapids.
The problem, according to the airport manager, is the lack of a grass runway. The FAA mandates a second runway for the lighter aircraft, something Alexander Field doesn't have.
"Right now, we have quite a few of the ultralights that are operating off the blacktop," said Kurt Gross, airport manager. "And so we've got conflicting traffic with heavier aircraft."
Gross says there will be a meeting on Tuesday to fix the problem.