HISTORY OF FLIGHTOn February 17, 2013, about 1530 central standard time, an unregistered experimental Quicksilver MX II airplane, operated by a private individual, was substantially damaged when it impacted terrain following a loss of control while maneuvering near Poplarville, Mississippi. The non-certificated pilot was fatally injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight conducted under the provisions of Title14 Code of Federal Regulations Part 91. According to acquaintances of the pilot, the accident flight was the pilot's first flight in the airplane after purchasing it several months prior. They stated that the pilot had been working on the airplane for about a month before the accident, and had recently been performing taxi tests around his residence, a mobile home park. On the day of the accident, a witness observed the pilot taxi the airplane several times around the mobile home park .The witness stated that the wind would "pick him up and then he would settle back down." This witness also reported that the pilot had been seen consuming alcohol on the day of the accident The pilot took off from a field next to the mobile home park and flew the airplane for about 30 minutes. He then turned the airplane to the west, where he made a low pass over a field, waved to onlookers, and continued towards a tree line. A witness reported the airplane was about level with the tops of the trees, which he estimated to be around 60 feet high. Witnesses observed the airplane's nose rise, and then heard the engine power increase. The left wing dropped and contacted a tree and the airplane subsequently impacted the ground. An FAA inspector observed a video of the accident flight filmed by an onlooker, and recounted the recorded sequence of events to the NTSB. He stated that the airplane passed onlookers at an estimated altitude of 50 feet above ground level. After reaching a tree line, the airplane's nose began to pitch up and the camera panned away. The engine could be heard increasing in power, and subsequently the sound of impact was heard. PERSONNEL INFORMATIONThe pilot, age 50, did not possess a valid FAA airman certificate or medical certificate. The pilot's girlfriend reported that she could not locate a logbook or other record of the pilot's flight experience. One of the witnesses stated that the pilot had taken flight lessons. AIRCRAFT INFORMATIONThe single-engine experimental airplane was powered by a Rotax 582, 65hp, reciprocating engine. The airplane did not contain an FAA airworthiness certificate, and no maintenance logs could be located. METEOROLOGICAL INFORMATIONThe 1550 recorded weather observation at Stennis International Airport, (HSA), Bay St. Louis, Mississippi, located 25 miles south of the accident site, included wind from 160 degrees at 6 knots, 10 miles visibility, sky clear, temperature 14 degrees C, dew point -1 degrees C, and an altimeter setting of 30.27 inches of mercury. AIRPORT INFORMATIONThe single-engine experimental airplane was powered by a Rotax 582, 65hp, reciprocating engine. The airplane did not contain an FAA airworthiness certificate, and no maintenance logs could be located. WRECKAGE AND IMPACT INFORMATIONReview of photographs provided by the Federal Aviation Administration (FAA) revealed that the airplane came to rest inverted in a tilled garden surrounded by trees. The left wing remained intact, and the right wing was broken about mid-span. There was a chordwise tear in the cloth of the right wing about 3 feet in length. MEDICAL AND PATHOLOGICAL INFORMATIONAn autopsy was performed on February 19, 2013 by the Mississippi State Medical Examiner's Office, Jackson, Mississippi. The cause of death was listed as, "multiple blunt trauma." Toxicological testing performed by the medical examiner's office revealed the presence of hydrocodone, dihydrocodeine, caffeine, nicotine, and 0.03% ethyl alcohol in the blood. Toxicological testing was also performed on the pilot by the FAA Bioaeronautical Science Research Laboratory, Oklahoma City, Oklahoma, which revealed 0.009 (ug/mL, ug/g) of buprenorphine in the liver, and 39 (ug/ml, ug/g) of hydrocodone in the urine. Buprenorphine and hydrocodone are narcotic pain medications and are marketed under the trade names Subutex and Vicodin, respectively. Testing also revealed 0.075 (ug/ml, ug/g) of oxymetazoline in the liver. Oxymetazoline is a nasal spray used for treating congestion, and is marketed under the trade name Afrin. Ethanol was detected in vitreous samples in a quan tity of 32 mg/dl.