What happened
A student pilot was conducting a cross-country personal flight over remote terrain when the aircraft's engine began producing heavy vibrations during the cruise phase of flight. The engine subsequently began to smoke and spray oil onto the windshield, leading to the complete stoppage of the propeller.
As the aircraft descended, the pilot identified a small frozen lake located approximately five miles from a major highway as a potential landing site. Due to the presence of tall trees surrounding the lake, the pilot selected a forced landing area between several trees that was only large enough to accommodate the main fuselage of the aircraft.
Upon impact, the collision caused significant structural damage: the windshield was broken out, the cabin doors were torn off, and the wings sustained extensive damage, including the rupture of the wing fuel tanks. The cockpit area remained intact, allowing the pilot to exit the aircraft with a small backpack. A post-crash fire subsequently erupted and consumed the airplane.
The flight was not reported overdue, and no signals from an emergency locator transmitter (ELT) were detected by search and rescue personnel. The following day, the pilot successfully used a handheld radio to contact an aircraft flying overhead to request assistance. The pilot of the passing aircraft landed on the frozen lake and rescued the student pilot.
The investigation
The investigation focused on the mechanical failure of the powerplant. The pilot reported that internal engine components failed, which resulted in the rupture of the engine case.