An occurrence is a dangerous occurrence for the purpose of the definition of dangerous occurrence in section 4 of the Act if it occurs at a workplace, and:
(a) resulted from operations that arose from an undertaking conducted by or for the operator of the workplace; and
(b) could have caused:
(i) the death of, or serious personal injury to, any person; or
(ii) the incapacity of an employee for a duration of 5 or more successive working days;
but as a result of which death, serious personal injury or incapacity did not occur.