Interim report on the investigation of the catastrophic engine failure and subsequent fire on board the site investigation vessel Kommandor Susan in the Firth of Forth, Scotland on 25 January 2025
“The sole objective of a safety investigation into an accident under these Regulations shall be the prevention of future accidents through the ascertainment of its causes and circumstances. It shall not be the purpose of such an investigation to determine liability nor, except so far as is necessary to achieve its objective, to apportion blame.”
As the full investigation report will not be published within 12 months of the accident date, this interim report is published, pursuant to Regulation 14(2)(b) of the Merchant Shipping (Accident Reporting and Investigation) Regulations 2012.
On 25 January 2025, the UK registered site investigation vessel Kommandor Susan experienced a catastrophic failure of one of its diesel generator engines while conducting sea trials in the Firth of Forth, Scotland. The failure resulted in an engine room fire and a complete power blackout.