NTSB Narrative Summary Released at Completion of Accident
On July 2, 2013, about 0800 mountain daylight time, an experimental amateur-built Bakeng Deuce airplane, N79396, was substantially damaged when it impacted vegetation and terrain near Garden Valley airport (U88), Garden Valley, Idaho, following a complete loss of engine power shortly after takeoff. The owner/pilot and his passenger were not injured. The personal flight was conducted under the provisions of Title 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed, and no FAA flight plan was filed for the flight.
According to the pilot, he based the airplane at Salt Lake City International Airport (SLC), and had flown to U88 several times previously. On the accident trip, he originally left SLC for U88 on Saturday, June 29, stopped once for fuel, and landed at U88 later that same day. On Sunday June 30 he flew to another airport in Idaho, where he and the airplane remained overnight, before returning to U88 on Monday morning. Later that day, he made an out and back flight from U88 to obtain fuel. All flights were uneventful, and during preflight inspections, the engine oil quantity remained at about the 5 1/2 quart level, which was normal for the engine.
On the morning of the accident, the pilot's brother, who was also a pilot, joined him for a planned flight. The preflight inspection indicated that the engine oil quantity was about 5 1/2 quarts. The airplane was equipped with dual flight and engine controls. The brother took the rear seat, which was the primary pilot seat in the airplane. The brother conducted the engine start, taxi out, and run-up; all were normal. The brother performed the takeoff from runway 28. When the airplane was on the crosswind leg, the pilot queried his brother why they weren't climbing as well as he expected, and the brother responded that he was "losing rpms." The pilot took control of the airplane, and turned back towards the airport. When the airplane was about 750 feet above the ground, the engine ceased operating. Since the airplane could not be started from the front seat, the pilot asked the brother to attempt a restart, but attempts were unsuccessful. The pilot then attempted to land the airplane on runway 10 (the opposite direction of the takeoff), but the airplane struck vegetation and the ground short of the runway. It came to rest upright, about 30 feet from the runway threshold.
Postaccident examination by the pilot and an inspector from the Federal Aviation Administration (FAA) revealed an oil streak on the left side of the airplane that extended aft from the cowling. Examination of the airport revealed an oil spray pattern on the ground along the taxi-out, run-up, and takeoff path. Examination of the uncowled engine revealed that the oil had emanated from an undetermined location near or on the aft face of the oil cooler, which was mounted just forward of the firewall. The airplane was equipped with a Lycoming O-320 series engine. The pilot was not the builder of the airplane, and he had purchased it about 1 year prior to the accident.
The pilot held a private pilot certificate, with a single-engine airplane rating. The certificate was issued in February 2010. The pilot's most recent third-class medical certificate was issued in May 2012. According to FAA information, the runway at U88 was turf, with a length of 3,850 feet, and an elevation of 3,177 feet.