“Casualty” means a casualty or other accident involving loss of life or danger to life suffered by a person—
- employed on, on or working from an offshore installation; or
- on or working from an attendant vessel, in the course of any operation undertaken on or in connection with an offshore installation.
Source: The Offshore Installations (Inspectors and Casualties) Regulations 1973, UK S.I. 1973/1842, 1973. Regulations