FAA Flight Standards District Office: FAA Portland FSDO-09
NTSB Identification: GAA16CA317
14 CFR Part 91: General Aviation
Accident occurred Monday, June 13, 2016 in McMinnville, OR
Probable Cause Approval Date: 07/14/2016
Aircraft: RYAN NAVION, registration: N4171K
Injuries: 2 Minor.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The pilot reported that about 15 minutes after takeoff he smelled something burning and the cabin filled with smoke. The pilot further reported that the engine lost power and that he was forced to maneuver for an emergency landing. After the loss of power, he heard a "clanging noise" from the engine. While landing in a field, the airplane impacted blueberry bushes and a fence, which resulted in substantial damage to the fuselage.
During a postaccident examination by the local law enforcement, it was revealed that the oil filler cap was not in place on the oil filler tube. The oil filler cap retaining chain was still attached to the oil cap and the oil filler tube. Upon further examination of the oil cap and the oil filler tube, no evidence of damage was noted.
The pilot reported there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot's failure to replace the oil filler cap following the preflight inspection, which resulted in a loss of engine oil and engine power, an emergency landing, and impact with terrain.
The pilot of a single-engine plane headed to San Jose from somewhere in Washington had electrical issues, so he rerouted to McMinnville. The plane lost power before they got to the airport, so they made an emergency landing at Lafayette Highway near Leach Lane.
The pilot and a passenger walked away with minor injuries. The plane is damaged, but didn't catch on fire.
According to the Federal Aviation Administration, the single-engine Ryan Navion was built in 1948. Lost Horizon Aero Company LLC, based in Seattle, Washington, owns the plane.
The FAA will investigate the crash.
Original article can be found here: http://katu.com