The Cessna T310R pilot reported that during the landing roll of his second uneventful landing at San Luis Obispo, Calif., the right main landing gear started to shimmy. He slowed the plane and proceeded towards the nearest taxiway.
Before exiting the runway, he went to retract the flaps when he inadvertently raised the landing gear handle.
He quickly re-lowered the landing gear handle, however the right main landing gear had already started to retract.
The airplane veered to the right, exited the runway, and came to rest on the grass. The right wing was substantially damaged.
The NTSB determined the probable cause as the pilot’s inadvertent action of retracting the landing gear instead of the flaps during the landing roll, which resulted in the right main landing gear collapsing.
NTSB Identification: WPR13CA413
This August 2013 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.