What happened
A solo pilot was conducting a delivery flight originating in Kansas City, with a planned stop in Los Angeles before continuing to Honolulu. During the nighttime portion of the journey, while cruising over the Pacific Ocean, the pilot issued an emergency declaration. At the time of the distress call, the aircraft's position was estimated to be approximately 646 miles northeast of Oahu.
Following the emergency report, search and rescue operations were initiated to locate the plane and the pilot. Despite several days of active searching, no wreckage or evidence of the aircraft was located. Consequently, the search efforts were officially terminated.
Findings
Investigations into the disappearance concluded that the incident was driven by inadequate preflight preparation by the pilot. The mechanical failure originated from an engine malfunction caused by oil exhaustion and a related lubrication issue. It was determined that the engine lost necessary oil pressure, which subsequently led to total engine failure during flight.