NTSB Identification: DEN08LA040.
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Accident occurred Saturday, December 15, 2007 in Mesilla, NM
Probable Cause Approval Date: 05/28/2008
Aircraft: Garniss STOL 701, registration: N45500
Injuries: 1 Fatal.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot flew his recently-purchased airplane over his home on a "daily basis." Each time, he would "buzz" his house and "wig wag" his wings. On the afternoon of the accident, the airplane circled over a vacant field behind his house in a constant descending left turn. He began to rock his wings as he made a "lower than normal" pass. As the pilot rocked his wings, he "lost control" of the airplane. The left wing tip contacted the ground and the airplane cartwheeled. A toxicological screen performed by FAA's Civil Aeromedical Institute found Chlorpheniramine in the pilot's blood and urine. Since it could not be quantified, it could not be determined how much was in the pilot's body or how long he had taken the antihistamine before flying. According to the Regional Federal Air Surgeon, the drug is contraindicated because it may cause drowsiness.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot's failure to maintain aircraft control during an intentional low altitude maneuver due to impairment, resulting in the in-flight collision with terrain.

Full narrative available

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