Accident Overview
A certified flight instructor and a student pilot were conducting a dual instructional flight. According to witnesses, the aircraft was performing 90-degree turns at an altitude of approximately 1,500 feet above ground level (AGL) just prior to the accident. After turning from a southerly heading to an easterly heading, the aircraft entered a descent and subsequently impacted a snow-covered, open field.
Impact and Post-Impact Details
The aircraft struck the ground in a nose-down attitude of about 35 degrees, with wings level. The flaps were found extended to 21 degrees (the first notch). Examination of the flap blades revealed nicks and gouges on their leading edges, as well as cordwise scratches. No preimpact mechanical issues were identified.
Operational Context
The operator noted that the maneuvers being performed before the accident were characteristic of slow flight. The operator recommended practicing slow flight at low altitudes. The instructor pilot had received his Certified Flight Instructor (CFI) certificate on October 7, 1983.