Accident Description
The pilot performed a wheel landing on runway 14. The landing was normal until the tail wheel touched down. At that point, the airplane ground looped, veering to the right. It came to a stop 180 degrees from the runway heading, approximately 3 feet off the runway edge.
Damage
The ground loop resulted in damage to the left landing gear and left wing tip.
Weather Conditions
Throughout much of the morning, the wind direction was variable and less than 4 knots. About 6 minutes prior to the accident, a routine aviation weather report (METAR) at SJN indicated winds from a magnetic heading of 290 degrees at 5 knots.
Pilot Report
The pilot did not report any mechanical problems with the airplane prior to the accident.