At about 15:28 Pacific time, a Cessna T210L struck mountains about four miles northeast of San Jacinto, killing the pilot. Minutes before the accident the pilot had received an IFR clearance for the GPS-A approach to Hemet-Ryan Airport. At the time of the accident, the airplane was between the initial and final approach fixes, but the pilot apparently had flown through the final approach course and the impact site was approximately 5.9 nm east of the approach course. The route was in an area where radar and radio coverage is sometime sporadic.