What happened
On June 11, 1965, at 12:09 CET, a Sud-Aviation Caravelle SE-210 III, registration HB-ICX, was preparing for departure from Geneva-Cointrin Airport following a 50-minute stopover. The aircraft was positioned at a parking area near a large hangar, an area typically used for light aircraft, due to congestion on the main apron caused by ongoing tarmac repairs and increased traffic.
As the aircraft began its departure sequence, the pilot executed a sharp right-hand turn of more than 90 degrees. To complete this maneuver, the engine power was increased to approximately 6,000 rpm. The resulting jet blast from the Rolls Royce Avon engines directed a stream of air toward nearby parked light aircraft. This blast caused a Piper PA-18 Super-Cub to pivot on its position, striking a person standing nearby. The impact resulted in one injury to a ground official, who sustained wounds to the neck and thigh.
The investigation
The investigation examined the ground handling procedures and the physical layout of the apron. It was established that the ground marshal was preoccupied with the arrival of a British United Air Ferries Carvair, leading the aircraft supervisor to manage the Caravelle's departure. While the pilot had noted the presence of the light aircraft, the high engine thrust required for the tight turn was the primary driver of the incident. The investigation also noted that the lack of clear parking markings on the concrete at that specific location made ground maneuvering more difficult for personnel.
Findings
- The primary cause of the incident was the jet blast from the Caravelle's engines hitting a stationary light aircraft.
- The aircraft was performing a tight turn that necessitated higher engine RPM, directing exhaust toward the parked Piper.
- The movement of the Piper PA-18 caused it to strike a person on the ground, causing a six-day period of incapacity for the victim.
- The Piper PA-18 sustained minor damage, including a dented aileron and paint damage.
- Ground congestion and the temporary use of the hangar parking area for commercial jets contributed to the proximity of the aircraft.