Accident Sequence
Earlier in the day, the pilot discovered a minor engine oil leak in the airplane. A certificated airframe and power plant mechanic repaired the leak, and the pilot then changed the airplane's oil. The pilot stated that the purpose of the subsequent flight was to verify that the oil leak was fixed. The pilot flew one circuit in the traffic pattern and landed normally. According to the pilot, he had full control of the airplane until he applied the brakes. He reported that he "applied [the brakes] a little too soon," and the airplane veered to the right and exited the runway.
Ground Excursion and Damage
After exiting the runway onto the grass, the airplane momentarily nosed down and the propeller touched the ground. The airplane then settled back down normally with the engine stopped. The airplane sustained substantial damage to the left wing and main wing spar. The pilot reported no mechanical malfunction or failure with the airplane prior to the accident.