Primary finding
Probable cause
A ruptured fuel line, which resulted in fuel starvation to the engine and a total loss of engine power.
Investigator assessment
Analysis narrative
The pilot of the gyrocopter reported that he departed with full fuel tanks for a local flight. While flying along a coastline, the engine lost power, and the pilot navigated to complete a forced landing on a beach. During the landing rollout, the nose wheel dug into soft sand and the gyrocopter rolled over onto its left side, which resulted in substantial damage to the main rotor and empennage. Postaccident examination of the gyrocopter’s engine revealed that a rubber fuel supply line was ruptured. Given this information, it is likely that the fuel leak starved the engine of fuel, which resulted in a total loss of engine power.