KANSAS CITY, Mo. (AP) _ Radar screens at Kansas City International Airport went dark for 27 minutes Friday, the airport's third radar problem in recent weeks.

Unlike the two previous incidents, this one did not involve a radar outage. The Federal Aviation Administration said a short circuit disconnected power to the radar screens but not to the radar itself.

FAA spokeswoman Anne Eldridge said controllers at nearby Olathe, Kan., took over the afternoon traffic at Kansas City International. No landings were delayed, although the outage did force short delays in two takeoffs.

The cause of the short circuit likely won't be known until early next week, Eldridge said.

The airport lost its radar system for more than 7 1/2 hours Tuesday morning, and cold weather caused a record 14-hour outage on March 11-12.