Accident Narrative
During the final approach to landing, the airplane sustained substantial damage after colliding with a snowbank. The certified flight instructor (CFI) reported that the approach progressed normally until the airplane was approximately half a mile from the runway. At that point, the student pilot extended the flaps to 40 degrees. The instructor then stated that he fell asleep for a period of 20 to 25 seconds. He regained awareness just before the wheels contacted the snowbank, but did not have sufficient time to intervene and prevent the impact.
Damage
The nose landing gear collapsed as a result of the collision, and the airplane slid to a stop. The extent of the damage was described as substantial.
Pilot Statements
The CFI attributed his inability to remain awake to a lack of sleep from the previous night. He noted that he was unable to react in time once he awoke prior to the impact. The student pilot had been flying the approach when the incident occurred.