What happened
On June 17, 2018, an experienced skydiver, who had completed 6,270 total jumps including 37 jumps during the current year, performed a jump from an altitude of 4,000 meters. The initial exit from the aircraft and the period of freefall proceeded without incident.
Upon reaching an altitude of approximately 1,200 meters, the skydiver initiated the deployment of the main parachute. During this deployment process, the lines of the Crossfire 139 parachute became twisted, causing the canopy to enter a spinning motion. To rectify the situation, the skydiver manually released the main canopy and deployed the reserve parachute. The descent concluded with a landing in the vicinity of the Piotrków Trybunalski (EPPT) airfield, and the skydiver sustained no injuries.
The investigation
The investigation was conducted by the user/operator. The inquiry focused on the deployment sequence of the main parachute and the mechanical behavior of the lines during the opening process.