Disappearance
An aircraft departed an airport at approximately 0230 on November 21, 1993. Neither the airplane nor the pilot have been located since that time.
Radar Observations
At the time of departure, the Chicago Air Route Traffic Control Center's radar recording equipment was temporarily out of service. The recorder returned to service at 0347. At 0410, a radar target was recorded 60 miles east of Milwaukee, Wisconsin, over Lake Michigan. The target descended from 7,500 feet mean sea level (MSL) to 2,500 feet MSL and disappeared from radar while making five 360-degree turns. The radar target was not identified as the missing airplane.
Injury and Damage
The injury and aircraft damage classifications are presumed.