No fatalities

4 Aug 2018: Rans S7 S — Kenai, AK

Kenai, AK, United States

On 4 Aug 2018, a Rans S7 S was involved in an aviation accident near Kenai, AK. No fatalities were reported. Investigators recorded the probable cause as: The pilot's exceedance of the airplane's climb capability due to his use of full flaps during a short-field takeoff, his failure to attain a positive climb rate after takeoff, and his exceedance of the airplane’s critical angle of attack, which resulted in an… This summary draws on records from NTSB; 8 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

During takeoff with full flaps at about 40 knots, the airplane lifted off early, climbed then descended into ground effect, stalled, and collided with trees, coming to rest inverted.

Accident Summary

A tailwheel-equipped airplane sustained substantial damage during a takeoff accident. The pilot reported that during the takeoff roll, at about 40 knots airspeed with full flaps and approximately 50 percent of the 900-foot runway remaining, the airplane lifted off and began to climb. It climbed above the tree line but subsequently descended into ground effect. The pilot attempted to clear the trees ahead, but the airplane stalled. The left wing dropped, and the airplane descended below the tree line, touched down on the main landing gear, collided with trees, and came to rest inverted.

Pilot Report

The pilot stated that he could have utilized more of the runway surface and held the airplane on the ground to achieve a more desirable airspeed. He also reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft Information

The pilot reported that the airplane was equipped with a tailwheel. The pilot operating handbook does not suggest the use of full flap application during short-field takeoffs.

Damage

The airplane sustained substantial damage to the left wing lift struts.

Contributing factors

Causes

PilotCapability exceeded

Other contributing factors

Contributed to outcome