The purpose of the flight in the Beech 33 was for both flight instructors to perform a proficiency flight with one another.
After performing maneuvers in the practice area, they returned to the airport to conduct touch-and-go practice takeoffs and landings.
After the right-seated flight instructor made two landings, the left-seated flight instructor conducted the landing. After touchdown, while the airplane was in the landing roll, the left-seated flight instructor moved the landing gear position selection lever to the “up” position instead of the flap lever.
Both instructors realized the mistake and attempted to move the gear lever back to the “down” position, but the left landing gear had already collapsed. The landing gear continued to retract and they became airborne.
After performing troubleshooting of the landing gear and a fly-by, they decided to land at another airport in Redmond, Oregon, with more facilities.
The right-seated flight instructor performed the landing at the alternate airport and the airplane rolled on all three landing gear for about 1,000 feet. The left landing gear then collapsed and the airplane veered off the runway.
The left aileron sustained damage as a result of the gear collapse.
Probable Cause: The left seated flight instructor’s improper manipulation of the landing gear position selection lever to the up position while still on the landing roll, which ultimately resulted in a landing gear collapse during a subsequent landing.
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This July 2020 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.