What happened
On April 29, 2005, a Robin DR400-140B, registration F-GCIK, was performing a navigation flight from Metz to Thionville. While flying in a downwind pattern for runway 20, the pilot decided to conduct an engine failure simulation exercise. During this maneuver, the pilot pulled the mixture control, effectively cutting the fuel supply to the engine.
As the aircraft transitioned into the base leg, the pilot likely underestimated the impact of the wind conditions. While on short final, the pilot executed a steep left turn, banking at approximately 60 degrees, in an attempt to reach a wheat field and avoid obstacles such as buildings and a railway line located near the runway threshold. During this maneuver, the aircraft was below the proper glide path and struck a row of trees before coming to a rest in a residential garden. The impact resulted in the death of the pilot and one injury to the passenger.
The investigation
The BEA examined the wreckage and found the airframe was broken at the dashboard and the fuel tank area. The engine, a Lycoming O-320, showed no external damage, but the propeller blades were deformed backward, indicating the engine was rotating without power at the time of impact. The investigation noted that the mixture and carburetor heat controls were found in the forward position, and the fuel pump switch was set to ON.
Investigators also reviewed the pilot's experience, noting he had 120 total flight hours, with limited recent instruction. The passenger's testimony was crucial in determining that the flight controls were functioning correctly prior to the crash and that the pilot had intentionally or unintentionally manipulated the mixture control during the maneuver.