Beech A36TC N1804E accident near Hopkinsville, Kentucky

Probable cause

The noninstrument-rated pilot's intentional visual flight rules flight into instrument meteorological conditions, which resulted in a loss of airplane control due to spatial disorientation. Contributing to the accident were the pilot's overreliance on his limited instrument training.

NTSB analysis

The noninstrument-rated private pilot and the passenger were on a personal cross-country visual flight rules (VFR) flight in the airplane, and the pilot was in contact with air traffic control and receiving flight following services as he deviated due to weather along the route of flight. The pilot talked with a controller about diverting to a nearby airport, but he opted to continue, stating that the flight would likely be clear of the weather shortly based on the information he was receiving from his on-board equipment. Weather radar and satellite imagery indicated that the flight encountered instrument meteorological conditions (IMC) before it departed from controlled flight and entered a steep descent that continued to terrain impact. Examination of the airframe and engine did not reveal evidence of any preimpact mechanical malfunctions that would have precluded normal operation.

The pilot had received about 71 hours of simulated instrument flight training and had accumulated about 16 hours in actual instrument conditions, though his most recent instrument training flight was more than 1 year before the accident. The pilot's decision to continue VFR flight into IMC may have been influenced by an overreliance on his limited instrument training that led him to underestimate the difficulty of maintaining airplane control in actual instrument conditions. After the airplane entered IMC, the pilot likely experienced spatial disorientation and lost control of the airplane. Although the pilot was using two medications (imipramine and doxylamine) that may have affected his aeronautical decision-making and increased his susceptibility to spatial disorientation, it could not be determined whether effects from these drugs contributed to the accident.

Text from the NTSB. Open the NTSB docket for ERA17FA180 for the full record.