Two people were severely injured after a Nitrogen cylinder catastrophically failed during refilling/pressurization.
Person 1 shut off the air and nitrogen gas supplies before yelling to the workshop to call the HSE leader (nurse).
Person 2, who was holding the cylinder, suffered severe injuries to his legs and one hand.
Person 3 was injured when the booster pump collided with his legs, probably after parts of the cylinder had hit it.
Both the injured people were quickly taken care of by the nurse and other response personnel, first at the incident site and then in the Heimdal
hospital – where the nurse was assisted in treating them by the duty doctor on land via video link.
The direct cause of the incident was that the nitrogen gas cylinder burst during pressurization because it was probably exposed to a pressure significantly above its design level.