What happened
The aircraft N97638 was involved in a fatal accident while conducting a visual flight rules (VFR) personal flight northeast of Auburn Airport. The pilot had initially contacted Sacramento Terminal Radar Approach Control (TRACON) to report that the airport was in sight. However, radar data showed the aircraft flying over and passing Auburn Airport in a northerly direction rather than remaining within the controlled airspace or following standard arrival patterns.
Upon being called by TRACON, the pilot requested a vector to Lincoln Airport, located approximately 16 miles west of Auburn. Air traffic controllers advised the pilot to maintain VFR conditions and warned him that he was entering an area of high terrain. Controllers further suggested that when possible, the pilot should turn right or left to a heading of 240 degrees to facilitate a vector to Lincoln Airport. The pilot acknowledged these instructions, but shortly thereafter, the aircraft disappeared from radar coverage.
Investigative interviews with residents in the immediate accident area revealed that ground visibility was effectively zero due to dense fog and misty conditions. This severe weather significantly impaired visual references necessary for VFR flight. Prior to departure on this flight, the pilot had been advised by a Flight Service Station (FSS) that VFR flight was not recommended due to the deteriorating weather conditions.
The investigation
The National Transportation Safety Board (NTSB) examined radar data, air traffic control communications, and witness statements from local residents. The physical examination of the wreckage confirmed a collision with terrain. No mechanical failures or pre-impact anomalies were identified that would have prevented the pilot from maintaining visual reference or avoiding the ground.
Findings
The investigation determined that the primary contributing factor was the pilot's decision to continue VFR flight into known adverse weather conditions. Despite receiving explicit warnings from air traffic control regarding high terrain and poor visibility, and a prior recommendation against VFR flight from FSS, the pilot proceeded into an area where ground visibility was reported as zero. The inability to maintain visual reference with the ground and surrounding obstacles led directly to the loss of control and subsequent impact.
The aircraft N97638 sustained substantial damage upon impact. The pilot was 1 fatal. No other individuals were injured on the ground or in the aircraft.