On January 28, 1994, a Bellanca 8GCBC (registration N7634S) was involved in an aviation accident near Usaf Academy, CO. Investigators recorded the probable cause as: According to the El Paso County Coroner's Office, the accident could have resulted from cardiac arrhythmia due to coronary insufficiency. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
While returning from a glider tow mission, an aircraft was observed flying low with an engine cutting out, then erratically before diving into a wooded area. Investigation found no mechanical failure, but an autopsy revealed coronary artery disease; the coroner suggested possible cardiac arrhythmia.
Accident Sequence
While returning from a glider tow mission after the glider had been released, the aircraft was observed flying at low altitude. One witness reported that the engine sounded as though it was cutting out. Other witnesses described the aircraft flying erratically at low altitude. It then entered a dive and crashed in a wooded area.
Investigation
No aircraft system failure or malfunction was found during the investigation. The aircraft was not equipped with dual controls. An Air Force Academy cadet was also aboard the aircraft.
Autopsy Findings
An autopsy revealed evidence of coronary artery heart disease. The El Paso County Coroner's Office indicated that the accident could have resulted from cardiac arrhythmia due to coronary insufficiency.
Probable cause
According to the El Paso County Coroner's Office, the accident could have resulted from cardiac arrhythmia due to coronary insufficiency.