No fatalities

11 Oct 2013: SUTPHIN RANS S-12 (N8028W) — French Lick, IN

French Lick, IN, United States

On 11 Oct 2013, a SUTPHIN RANS S-12 (registration N8028W) was involved in an aviation accident near French Lick, IN. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain adequate airspeed while in a steep turn, which resulted in an aerodynamic stall/mush at a low altitude. This summary draws on records from NTSB.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

On October 11, 2013, an experimental Rans S-12 airplane collided with trees near French Lick, Indiana, during a demonstration flight. The pilot and passenger were uninjured, but the aircraft sustained substantial damage.

Incident Summary

At 1700 eastern daylight time on October 11, 2013, an experimental amateur-built Sutphin model Rans S-12 airplane, registration N8028W, was substantially damaged when it collided with trees while maneuvering near French Lick Municipal Airport (FRH) in French Lick, Indiana. The commercial pilot and a passenger were not injured. The airplane was registered to and operated by the pilot under 14 Code of Federal Regulations Part 91, without a flight plan. Day visual meteorological conditions prevailed for the local area flight that had departed FRH about 1640.

Aircraft and Flight Details

The pilot reported that the accident occurred during a demonstration flight for a potential buyer of the airplane. After a short local area flight consisting of several uneventful turns, the pilot decided to return to the airport for a landing. He stated that the airplane started to lose altitude while in a right turn to enter the downwind leg for runway 8. The pilot responded by advancing the engine to maximum power but was unable to arrest the descent or increase airspeed before the airplane collided with a tree. The right wing was substantially damaged during the impact. The pilot reported no preaccident malfunctions or failures with the airplane that would have prevented normal operation.

The passenger reported that the airplane appeared to lose altitude as the pilot performed a steep right turn over a wooded area southwest of the airport. The passenger noted that the pilot increased engine power after leveling out of the steep turn, yet the airplane continued to descend into the trees. The airplane came to rest suspended in a tree about 60 feet above the ground. The passenger stated that the engine continued to run at an idle power setting following the accident until the pilot turned off the magneto switches.

Postaccident Examination

A postaccident examination was completed by inspectors with the Federal Aviation Administration (FAA) after the wreckage had been recovered from the accident site. The FAA examination confirmed flight control continuity from the individual flight control surfaces to their respective cockpit controls. The fuel tank contained about 3 gallons of fuel, and there was fuel in the supply line to the carburetors. An operational engine test run established that there were no mechanical or electrical anomalies with the engine. The FAA examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.

Weather Conditions

The nearest aviation weather reporting station was located at Huntingburg Airport (HNB), Huntingburg, Indiana, about 21 miles southwest of the accident site. At 1655, the HNB automated surface observing system reported calm wind conditions, visibility 10 miles, sky clear, temperature 24 degrees Celsius, dew point 12 degrees Celsius, and an altimeter setting of 30.03 inches of mercury.

Contributing factors

Airspeed — Not attained/maintainedAngle of attack — Not attained/maintainedPilot