What happened
On July 20, 2008, a pilot attempted a weekend flight from Schwenningen to Oberschleißheim in a HOAC-Austria DV 20 Katana. Witnesses at the airfield noted that the pilot appeared to be in a hurry while performing hangar removal, refueling, and pre-flight inspections. During taxiing to the runway 23 holding point, a delay occurred due to an electric-powered glider departing the field.
At 14:52 local time, the aircraft began its takeoff roll. Shortly after liftoff, observers noted the aircraft entered a right bank. After a brief period of leveling, the aircraft entered a second, more severe right bank at an altitude of approximately 10 to 12 meters. The radius of the turn tightened as the aircraft continued its climb, eventually resulting in a crash from an altitude of about 15 meters. The aircraft struck the ground approximately 160 meters from the runway, impacting with its right wing first in a knife-like attitude. The engine was observed to be operating at full takeoff power until the moment of impact.
The investigation
The BFU investigation focused on the aircraft's condition, the pilot's experience, and the flight circumstances. The investigation found that the DV 20 Katana was within its maximum takeoff weight, and the center of gravity was within the permissible range. There were no indications of technical malfunctions, as the engine had maintained consistent power throughout the takeoff sequence. The pilot was found secured in his seat with both shoulder and lap belts properly fastened and undamaged. The aircraft was destroyed upon impact.
Findings
- The pilot, who had 77 total flight hours, was fatally injured in the accident.
- The aircraft's takeoff weight was 54 kg below the maximum allowable limit.
- The primary cause of the accident was the uncontrolled right bank and subsequent loss of control during the initial climb phase.