With the Miss Helen video it looked to me like there was a power loss from the smoke puff
Summary:G-BIXL was on a final approach to land on a grass runway when the engine began to run roughly. The pilot advanced the throttle which led to a marked reduction in power. The aircraft touched down on the grass short of the runway but was forced back into the air when it crossed the lip of a raised taxiway. During the following touchdown and deceleration, the left main gear was damaged and the propeller hit the ground before the aircraft came to a halt. The cause of the rough running and power loss was not positively determined at the time of publication of this report.
