What happened
On June 10, 2002, an A.P. Robin DR 400/180R, registration D-EHAE, was conducting a cross-country flight from Karlsruhe/Baden-Baden, Germany, to Hilversum Airport, Netherlands. After approximately 90 minutes of flight at altitudes between 3,500 and 4,500 feet, the pilot contacted Dutch Mill flight information service to request a diversion to Volkel Airbase because of a potential fuel shortage. Upon being informed that Volkel was closed, the pilot redirected toward Eindhoven Airport.
As the aircraft descended to 1,500 feet and flew over the city, the engine suddenly ceased operation. The pilot attempted to restart the engine multiple times but was unable to maintain altitude. Realizing the aircraft could not reach the runway, the pilot reported a critical fuel shortage. Approximately two minutes later, the aircraft crashed into a field during an attempt at an emergency landing. The impact resulted in substantial damage to the aircraft and serious injuries to the pilot.
The investigation
The investigation focused on the sudden loss of engine power and the rapid depletion of fuel. While the aircraft's flight manual indicates an endurance of roughly three hours, the fuel in the 110-liter tank was exhausted in less than two hours. Investigators examined the fuel system but found no mechanical explanation for the rapid consumption. It could not be confirmed whether the fuel low warning system had functioned or if the tanks were indeed full at the start of the flight.
Findings
- The pilot did not monitor the fuel gauge regularly during the flight.
- The pilot underestimated the severity of the fuel shortage by failing to declare a formal emergency.
- Because no emergency was declared, air traffic controllers permitted the aircraft to fly at a low altitude over a populated area, creating significant risk.
- The pilot had noted higher-than-normal fuel consumption during previous flights, which influenced his initial calculations.