Eagle R&D Inc HELICYCLE accident near Gallatin, TN

On September 28, 2014, an Eagle R&D Inc HELICYCLE (helicopter) was involved in an accident near Gallatin, TN. 1 person died. Damage to the aircraft: substantial.

Date
September 28, 2014
Place
Gallatin, TN
Aircraft
Eagle R&D Inc HELICYCLE · Helicopter
Injuries
1 fatal, 0 serious, 0 minor
Damage
Substantial
Position
36.425°N, 86.484°W
NTSB ID
20140928X75554

Official records · ERA14FA461

NTSB summary

HISTORY OF FLIGHTOn September 28, 2014, about 1520 central daylight time, an experimental amateur-built Eagle R & D Helicycle helicopter, N7062U, impacted terrain after a loss of control while maneuvering in Gallatin, Tennessee. The private pilot was fatally injured and the helicopter was substantially damaged. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight conducted under 14 Code of Federal Regulations (CFR) Part 91. The flight departed from a private residence about 1519 and was destined for Sumner County Regional Airport (M33), Gallatin, Tennessee. According to a friend of the pilot, the pilot had departed M33 earlier in the day and flown to the friend's property. The landing was uneventful, and, while the pilot was there, he borrowed some tools and increased the tension on the helicopter's drive belts. According to the friend, about 1519, the pilot started the helicopter, lifted off, and departed to the southwest. The friend assumed that the pilot was heading back to M33, but, about 1 minute later, he observed the helicopter flying toward him in a nose-low attitude, about 400 ft above ground level, and at a "high rate of speed." The helicopter then suddenly pitched over, began to tumble, and impacted in an inverted attitude, and a postcrash fire ensued. PERSONNEL INFORMATIONFederal Aviation Administration (FAA) and Pilot Records According to FAA records, the pilot was first certificated in 1973 and held a private pilot certificate with a rating for airplane single-engine land. The pilot owned a Cessna 150, and although h

Probable cause

The pilot's decision to fly the improperly balanced helicopter at high speed and low altitude, which resulted in a loss of control and collision with terrain. Contributing to the accident were the pilot's depression and resulting degradation of executive function and the pilot's use of a sedating antihistamine, which resulted in impaired mental and motor skills.

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