On August 25, 1990, a Champion 7GCAA (registration N2521F) was involved in an aviation accident near Clark Lake, MI. Investigators recorded the probable cause as: POOR JUDGEMENT OF THE PILOT DUE TO CONSUMPTION OF ALCOHOL, AND HIS FAILURE TO MAINTAIN PROPER ALTITUDE AND CLEARANCE ABOVE WATER, WHILE PERFORMING AEROBATIC MANEUVERS. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
Witnesses observed low-altitude aerobatic maneuvers followed by a steep pull-up and water impact. Post-accident inspection found no mechanical issues; pilot had elevated blood alcohol level.
Accident Overview
According to the official investigation, the accident occurred after the aircraft was observed performing low-altitude flight and aerobatic maneuvers. Witnesses reported that following a steep pull-up, the aircraft descended steeply and impacted the water.
Witness Reports
Multiple witnesses described the aircraft flying at low altitude while conducting aerobatic maneuvers. The sequence culminated in a steep pull-up, after which the aircraft was seen entering a steep descent before striking the water.
Investigation Findings
A subsequent inspection of the airframe and engine revealed no anomalies that would have prevented normal flight. Toxicology checks performed on the pilot found a blood alcohol level of 260 mg/dL (0.26%) and a urine alcohol level of 183 mg/dL (0.183%).