Ryan NAVION N5329K accident near Truckee, California

Probable cause

A loss of engine power for reasons that could not be determined.

NTSB analysis

Shortly after takeoff, the private pilot reported to the tower controller that the airplane had experienced a "power failure" and would be returning to the airport. A witness reported that he observed the airplane flying low and trying to make a sharp turn back toward the airport and that the engine seemed like it was sputtering. The airplane subsequently impacted the upsloping terrain hard, and came to an abrupt stop less than one mile southwest of the departure runway. All major components of the airplane were located at the accident site. Postaccident examination of the airframe revealed no mechanical anomalies that would have precluded normal operation. Although the carburetor diaphragms exhibited tearing/cracks, the fracture surfaces were consistent with impact damage. No other mechanical anomalies were observed that would have precluded normal engine operation, and the reason for the reported loss of engine power could not be determined.

Text from the NTSB. Open the NTSB docket for WPR18FA198 for the full record.