Alliant Aviation DESTINY 2000 accident near New Era, Michigan, May 4, 2019

The NTSB's narrative final · quoted from the NTSB record

The accident flight was the pilot's first flight in 8 months in the powered parachute. Witnesses saw the aircraft turning at low altitude when the canopy collapsed and the aircraft entered a spiraling descent to ground contact. Two of the witnesses stated that the engine sound changed before the canopy collapse. Postaccident examination of the aircraft revealed no mechanical anomalies that would have precluded normal operation, and wind conditions near the accident site were reported between 1 and 5 mph. Review of the pilot's logbook indicated that his most recent flight review was conducted about 9 years before the accident. Toxicology testing of the pilot revealed the presence of tramadol, which the pilot was taking to treat arthritis. Although both tramadol and underlying arthritis severe enough to warrant the use of opioid analgesics are potentially impairing, it could not be determined whether the pilot's arthritis or effects from his use of tramadol contributed to the accident. Information provided on the aircraft's stability cited the powered parachute … can be flown erratically relative to power so to upset normal flight. [However] this isn't catastrophic if altitude is sufficient. The pilot most likely did not maintain proper power and aircraft control in the turn to keep the canopy inflated resulting in its collapse and the aircraft's subsequent uncontrolled descent into terrain.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.