NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
At the conclusion of a cross-country flight, the instrument-rated pilot was cleared for an instrument approach in actual instrument meteorological conditions. About 2 minutes later, the airplane entered a right descending turn away from the airport. The controller attempted to contact the pilot but received no response. The airplane impacted a reservoir about 8 miles from the airport.
Postaccident examination of the airplane and engine revealed no mechanical anomalies that would have precluded normal operation. On his most recent application for a medical certificate about 6 months before the accident, the pilot reported a total of 1,940 hours of flight experience, but his logbooks were not recovered, so his recent flight experience and instrument currency could not be determined. The pilot's toxicology results were negative, and the autopsy was inconclusive, so it is unknown if the pilot experienced a medical condition that could have contributed to the loss of airplane control.