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On August 14, 2000, at 1020 eastern daylight time, an Ayers S2R-600, N3103B, piloted by a commercial pilot, was destroyed on impact with terrain while maneuvering near Bad Axe, Michigan. The 14 CFR Part 137 aerial application flight was not on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The pilot, who was the sole occupant, was fatally injured. The local flight originated from the Huron County Memorial Airport, Bad Axe, Michigan, at about 1005.
Witnesses to the accident reported that they saw the aircraft performing an aerial application flight and was making a turn at the end of a northbound pass. One of the witnesses reported that during the turn, "...the left wing dropped, nose went down, and the aircraft spun to the left." A second witness reported that, "...in the middle of the turn about that the plane seemed to be turning a little to[o] sharp. He was flying north turning to the west when about halfway is when it dipped real bad and made about 3/4 of a revolution and came nose first into the ground." The witness also stated that he did not hear a difference in engine sound when the accident occurred. A third witness reported that the aircraft, "...turned right then left at about 2/3 of the way around the plane seemed to turn real sharp then turned over and spiraled to the ground. A fourth witness reported that the aircraft was, "...spraying from south to north, and was in the process of making a turn to his left and was starting to come out of the turn when the plane started to roll or spin down. I could hear the engine thru out the spraying process and the sound of the engine never seem[ed] to change thru out this period."
The pilot, a 22-year-old male, was the holder of a commercial pilot certificate with ratings for single engine, multi-engine, and instrument privileges. He held a second-class medical certificate issued on March 21, 2000. Federal Aviation Administration records indicate that the pilot had accumulated 1,900 total flight hours as of the date of his medical certificate. The pilot's flight logbooks were not located during the investigation.
The airplane was an Ayres model S2R-600, serial number 2583R. A Pratt and Whitney R1340 series engine originally powered the aircraft. In 1996, an Allied Signal TPE 331-1 turboprop engine was installed on the airframe in accordance with Supplemental Type Certificate SA01068AT.
According to the aircraft logbooks, the aircraft had accumulated 2,848 hours total time in service at the time of it's last annual inspection performed on January 14, 2000. According to the engine logbook, the engine had accumulated 849 hours since overhaul as of the date of the annual inspection.
A postaccident examination of the aircraft failed to reveal any anomalies that could be associated with a preexisting condition.
A weather report taken at the Huron County Memorial Airport at 1021 edt listed the weather as: Ceiling 4,400 feet broken, 5,000 feet overcast; Visibility 10 statute miles; Temperature 71 degrees Fahrenheit; Dewpoint 63 degrees Fahrenheit; Winds 040 degrees magnetic at 6 knot; Altimeter setting 30.08 inches of mercury.
MEDICAL AND PATHOLOGICAL INFORMATION
An autopsy was performed at the Huron Memorial Hospital in Bad Axe, Michigan, on August 14, 2000. A Forensic Toxicology report showed that 6.52 ug/ml of Acetaminophen was detected in the pilots blood. Acetaminophen is a nonprescription medication used to treat mild pain or fever.