The flight instructor reported that, during the last landing of the day at the airport in Ontario, Oregon, which he performed in crosswind conditions, the tailwheel-equipped American Champion 7GCBC bounced.
During the bounce, the airplane rolled right, and the right main landing gear touched down.
Subsequently, once both main landing gear were on the runway, the airplane veered sharply to the right and he lost directional control.
The airplane exited the right side of the runway, the right main landing gear spindle and tire separated from the airplane, and the airplane came to rest. The airplane sustained substantial damage to the front spar.
The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The automated weather observation system located at the accident airport reported, about the time of the accident, the wind was from 210° at 8 knots. The flight instructor landed on Runway 33.
Probable cause: The flight instructor’s failure to maintain directional control during landing, in crosswind conditions.
NTSB Identification: GAA18CA176
This March 2018 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.
Way too much emphasis on ailerons during a X wind landing and way too little on rudder input.
One of the problems with tailwind components , as here , is , apart from higher touchdown speeds, the reduced or zero effect of flight controls when the rollout speed approaches that component. It seems that probably is the reason here .
Could be. Another thought is after the bounce, a cross-controlled stall. The pilot would have had left aileron/right rudder, so the right wing would probably have stalled first (lower right aileron creating higher angle of attack of right wing), causing the roll to the right.