Approach and Initial Conditions
The approach was stabilized at 100 knots with landing gear and flaps extended for landing. The approach proceeded normally until the aircraft reached approximately 100 feet above the runway.
Encounter with Turbulence
At about 100 feet, the aircraft encountered turbulence that induced rapid rolling tendencies, alternating left and right.
Flare and Wing Drop
As the student pilot began the landing flare at approximately 15 feet above the runway, the left wing dropped rapidly, accompanied by a sudden high sink rate.
Instructor Intervention
At this point, the flight instructor assumed control of the aircraft and applied corrective inputs, including rudder, aileron, pitch, and power adjustments.
Outcome
Despite the instructor's corrective actions, the left wing made contact with the runway.
Meteorological Conditions
At the time of the incident, the reported winds were from 310 degrees at 6 knots. The temperature was 2 degrees Celsius. Records indicated that the winds were variable throughout the day.