What happened
On a day with favorable flying conditions, a privately owned Piper Cub J3C-65, registered C-FIUH, departed from a grass runway near Essex, Ontario. This flight marked the first operation of the aircraft following its annual maintenance inspection. After takeoff, the pilot performed a planned low pass parallel to the runway heading east, then climbed to roughly 1,500 feet while turning north. Shortly after this climb, the aircraft began a steady, gradual descent toward the southeast. At approximately 1420 EDT, the aircraft impacted the ground in a nearby field. The impact and subsequent fire destroyed the aircraft, and the one fatality was recorded as the pilot, who was the sole occupant.
The investigation
Investigators examined the aircraft and found no evidence of mechanical failure, engine malfunction, or airframe issues that could have contributed to the crash. The aircraft's maintenance records showed it had been kept in compliance with all regulations. Weather observations from nearby Windsor indicated clear skies and light winds, confirming that environmental factors were not a factor in the accident.
Medical investigations focused on the pilot's health. While the pilot held a valid Category 3 medical certificate and had recently passed necessary cardiovascular assessments, a post-mortem examination identified underlying, asymptomatic atherosclerotic coronary artery disease. This condition placed the pilot at a heightened risk for a sudden cardiac event.
Findings
- The aircraft was functioning normally with no mechanical deficiencies found.
- Weather conditions were ideal for visual flight rules.
- The pilot likely suffered an acute coronary event due to underlying coronary artery disease, leading to sudden incapacitation and loss of aircraft control.