On July 28, 1986, an American Aviation Corp. (aac) AA-1 (registration N6135L) was involved in an aviation accident near Plainfield, IL. Investigators recorded the probable cause as: The pilot's cardiac dysfunction, resulting from 90% occlusion of the left coronary artery causing arrhythmia or myocardial infarction, rendered the pilot physically incapacitated. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
Witnesses reported the pilot acting out of character before takeoff. The aircraft climbed briefly, then banked steeply and crashed. Postmortem examination revealed severe coronary artery occlusion causing cardiac dysfunction and pilot incapacitation.
Accident Overview
On the day of the accident, witnesses who spoke with the pilot of N6135L prior to the flight noted he was acting out of character. He had a loss of appetite and his complexion was ashen grey. The pilot himself stated that he did not feel well before the flight.
Flight Sequence
Witnesses observed the aircraft take off, climb slightly, and then bank steeply to the right before crashing. No further details about the flight path or conditions were reported.
Medical Findings
A postmortem examination revealed evidence of 90% occlusion of the left coronary artery, which resulted in an arrhythmia or myocardial infarction. The cardiac dysfunction rendered the pilot physically incapacitated during the flight.
Final Outcome
The aircraft was destroyed in the accident. The source does not specify any injuries or fatalities.
Probable cause
The pilot's cardiac dysfunction, resulting from 90% occlusion of the left coronary artery causing arrhythmia or myocardial infarction, rendered the pilot physically incapacitated.