NTSB Factual Report

On July 11, 2018, about 1920 eastern daylight time, an experimental, amateur-built Glasair SH2, N352GL, was substantially damaged during a forced landing after a total loss of engine power near Passadumkeag, Maine. The commercial pilot was not injured. The airplane was operated by the pilot/owner as a personal flight conducted under the provisions of Title 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed at the time of the accident for the local flight, which originated at Lincoln Regional Airport (LRG), Lincoln, Maine, around 1855.

According to the pilot, he performed a preflight inspection, noted 19 gallons of fuel on board the airplane, and reported no anomalies prior to takeoff. The airplane departed runway 35 at LRG, climbed to 1,200 ft mean sea level (msl), and the pilot noted that the engine parameters were "normal." Then, about 10 miles southwest of the airport, at cruise airspeed, the engine started to run "rough" and decreased to about half of cruise power. The pilot checked the engine gauges, noted no irregularities, and unsuccessfully attempted the regain engine power by turning the fuel boost pump on. Within about 30 seconds of the reduction of power, the engine lost total power and the propeller stopped.

The pilot performed a forced landing to a bog. The airplane came to rest inverted and the empennage separated.

The airplane was retained for further examination.