Incident Overview
A certified flight instructor (CFI) was providing instruction to a student pilot in takeoffs and landings, with several uneventful landings completed. The control tower advised the flight crew to change their landing runway to 24R due to a wind shift.
Wind Conditions
According to the student pilot, the wind was from approximately 300 degrees at 8–10 knots, gusting to about 15 knots.
Sequence of Events
During the landing rollout, a gust of wind caused the airplane to turn to the right. The CFI stated that the student pilot responded quickly with opposite rudder, but no apparent results were observed. The CFI then took the controls and reached for the throttle to add power in an attempt to regain directional control. However, the student pilot's right hand was gripping the throttle tightly, preventing the CFI from adding power.
Outcome
The airplane departed the runway under a side load, resulting in the collapse of the left landing gear. The airplane subsequently dropped off a 4-foot embankment and came to a sudden stop at the bottom.
Injuries and Damage
The source does not specify any injuries. The airplane sustained damage including a collapsed left main landing gear and likely further damage from the embankment.
Probable Cause
The source does not provide a stated probable cause.