What happened
On July 27, 2017, a skydiver was performing a tracking maneuver near the Chrcynno (EPNC) aerodrome. Upon completing the maneuver at an altitude of approximately 1,000 meters, the individual attempted to deploy the main parachute. Following the deployment of the Spadochron Pilot 168, the canopy experienced a "twist" phenomenon accompanied by deep rotations of the canopy.
In response to the malfunction, the skydiver executed emergency procedures by cutting away the main canopy and deploying the reserve parachute. The landing was completed on the operational part of the airfield, and the skydiver sustained no injuries.
The investigation
The investigation, conducted by the operator, examined the circumstances surrounding the canopy malfunction and the deployment process. The inquiry focused on the physical state of the equipment and the stability of the skydiver during the deployment sequence.
Findings
While a definitive cause for the malfunction could not be established, several contributing factors were identified as potential causes for the line twists and canopy rotation. These included:
- An asymmetrical body position during the canopy inflation process;
- Uneven distribution of the suspension lines within the rubber grommets;
- Uneven wear of the rubber grommets or other difficult-to-classify mechanical issues.