Accident Sequence
During the landing phase, air traffic control instructed the pilot to execute a go-around maneuver. Shortly after initiating the go-around, the aircraft entered an uncontrolled spin and impacted the ground. Investigators found no evidence of any preimpact mechanical malfunction that could have caused the accident.
Aircraft Information
The aircraft was equipped with Supplemental Type Certificate (STC) No. 3A15, which involved the installation of drooped wing tips, known as Demer Super Tips. This modification was intended to improve climb performance, increase cruise speed, reduce stall speed, and shorten takeoff distance.
Toxicology Findings
Post-accident toxicological analysis of the pilot's blood sample detected the presence of ethanol at a concentration of 0.041%. However, the blood sample was deemed unsuitable for analysis, and the result was not considered reliable.