According to Canada, Newfoundland and Labrador Offshore Petroleum Board, the incident took place on October 12, 2019, when workers onboard the Terra Nova FPSO were conducting a lifting using an air hoist that travels on a trolley assembly through the lower turret to the roof of the Quick Connect DisConnect (QCDC) room.

When the lift was completed, the workers began preparations to store the air host and trolley assembly when a sling failed. Thus, the trolley assembly weighing approximately 200kgs fell approximately 34m onto an enclosure below.

The area that the work was conducted was restricted and required permission for entry; Therefore, there were no personnel in the area and thus no injuries reported. The incident could lead to a fatality based on the Dropped Objects Prevention Scheme (DROPS) calculator.

The area was secured and the air hoist winch has been taken out of service.

In mid-summer, Terra Nova FPSO was again investigated by C-NLOPB, when an offshore worker was exposed to chemicals, something that could have led to a fatal incident.