Accident Overview
A flight instructor, returning to the departure airport after conducting an instructional flight, noticed deteriorating weather and decided to perform the landing herself. During the approach, she felt windshear and flew the airplane approximately 5 to 10 knots faster than normal. On touchdown, she reported feeling a strong push from behind that accelerated the airplane rapidly. She applied full brakes, but the airplane continued moving forward, departing the end of the runway.
Concerned that the airplane would impact a deep ditch, the instructor turned the airplane to the left. This maneuver resulted in the collapse of the right main landing gear, and the airplane came to rest on the grass.
Damage and Mechanical Condition
The airplane sustained substantial damage to both the left and right wings. The pilot stated that there were no preaccident mechanical failures or malfunctions that would have precluded normal operation.
Weather Conditions
An automated weather observation station located 4 miles north of the accident site reported that, about 11 minutes after the accident, the wind was calm with light thunderstorm rain. The airplane was landing on runway 18. Additionally, at 45 minutes past the hour, thunderstorms and cumulonimbus clouds were reported in the area, with peak wind gusts from 240 degrees at 29 knots.