determine the cause of the disaster. Consequences In response to the Kielland disaster, North Sea offshore installations tightened their command organization, identifying a clear authority who would order abandonment in case of emergency. The fourteen minutes between initial failure of the leg and the rig's eventual capsize left a window in which most of the personnel on board could have escaped, had a more effective command structure been in place. These revised command structures, similar to conventional shipping command structures, are now frequently put into use when vessels lose anchorage in storm conditions or when fixed installations are threatened by out-of-control vessels. The failure to deploy lifeboats led to new legislation regarding on-load release hooks for lifeboats on oil rigs. As a consequence, the International Maritime Organization issued a requirement for all lifeboats on merchant ships to be fitted with hooks that could be released even when they were under load. A memorial to the disaster was erected in 1986 on the coast of Kvernevik. Named "Broken Chain" (), the memorial depicts a broken chain link. It weighs about and stands high. Similar incidents Not long after Kielland capsized, her sister rig, Henrik Ibsen, suffered a jammed ballast valve, causing her to list twenty degrees, but was later righted again. Approximately eighteen months later, Ocean Ranger capsized in similar weather conditions off the Newfoundland coast. An investigation into the cause of the Ocean Ranger disaster by the United States Coast Guard established that structural failure was not a factor. Fictional Account A fictionalised account of the disaster was first broadcast in Norway in 2018 in the drama series ′′Lykkeland′′(′′State of Happiness′′) It was broadcast in the UK in February 2022 by BBC Four. The disaster and subsequent rescue operation were spread over episodes seven and eight of Series Two (′′Mayday′′ and ′′123′′ respectively) References External links An animation by Failure Analysis Associates (now Exponent) Petroleum Museum, Norway Oil rig disasters listing and descriptions Collapsed oil platforms History of the petroleum industry in Norway Oil platforms off Norway 1980 industrial disasters Maritime incidents in 1980 1980 in Norway Man-made disasters in Norway History of the North Sea March 1980 events in Europe