On September 20, 1986, a Cessna 205 (registration N27WD) was involved in an aviation accident near Twin Mountain, NH. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During a water balloon drop contest at an organized fly-in, the aircraft banked sharply right and pitched down while maneuvering at low airspeed near Runway 27.
What happened
The accident occurred during an organized fly-in event that featured a "bomb drop" contest. The objective of the activity was for the pilot to maneuver the aircraft at low airspeed so that a passenger could release a water-filled balloon onto a designated target placed on Runway 27.
While performing these maneuvers, the aircraft suddenly banked to the right and pitched downward. This loss of control resulted in the aircraft striking the ground on the right edge of Runway 27.
The investigation
The available source material does not contain specific details regarding mechanical examination or post-accident findings beyond the immediate sequence of events described above.
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