What happened
On June 6, 1960, a pilot departed from Spreitenbach in a Ka 6CR Rhönsegler, registration HB-618, to perform a cross-country flight for the purpose of earning the Silver C badge. The flight proceeded normally until approximately 13:45, when the pilot decided to terminate the flight and perform an off-field landing in an open area southeast of Escpland Eschenbach. During the final approach, the aircraft entered a steep left turn at an altitude of only 20 to 30 meters, subsequently stalling and impacting the ground. The impact resulted in heavy damage to the aircraft and severe injuries to the pilot.
The investigation
The investigation examined the flight conditions, the pilot's physical state, and the mechanical condition of the Ka 6CR Rhönsegler. Investigators noted that the weather at the time of the accident was extremely hot and humid, with cockpit temperatures estimated between 30 and 40 degrees Celsius. The pilot, who was highly qualified and known for a cautious flying style, had been experiencing significant stress and nervousness due to personal matters. The investigation also reviewed the aircraft's maintenance and performance, finding no mechanical defects. The landing site was an open field where hay work was in progress, and a hay bale was located near the crash site.
Findings
- The primary cause of the accident was the aircraft falling below its minimum flying speed, leading to a stall during the landing approach.
- The pilot's ability to maintain control was likely compromised by heat-induced unwellness, as the extreme cockpit temperatures and high humidity likely caused physical distress.
- The pilot's decision to abort the flight was likely driven by deteriorating weather conditions and physical discomfort.
- While the pilot likely intended to initiate the left-hand landing pattern, the loss of airspeed and subsequent stall occurred during this maneuver.