Circumstances:
The pilot had completed one sortie of about one and a half hours consisting of upper air work and circuits. He had occupied the right seat, which is the normal pilot seat. As he was training for an Instructor Certificate, he later commenced a second sortie flying from the left seat, having previously been checked out for flying from both seats. Circuits were to be conducted with landings into a wind of 8 to 10 knots. The pilot reported that for the first landing the aircraft was lifted by a wind gust, and a heavy touchdown ensued. The aircraft bounced and he applied a small amount of power, but on the second touchdown, the left landing gear collapsed, and the aircraft tilted onto its nose. The pilot reported that he attributed the accident to slight confusion at the time of the initial bounce, due to reversal of hand position, for the different seats.
