Offshore firm fined following death of worker whose body was never recovered

Ensco Offshore UK Limited (EO UK Ltd) was responsible for the operation of the Valaris 121 installation when the incident occurred on 22 January 2023.

Jason Thomas, 50, from South Wales, was an experienced offshore worker with around 16 years in the industry. At the time of his death, he was employed by Ensco Services Limited, a wholly owned company of EO UK Ltd, where he had progressed from roustabout to deck foreman and then crane operator.

After he went missing on 22 January 2023, an HM coastguard search was launched and called off the following day, though Jason’s body was never recovered. HSE carried out a full investigation to find out what happened.

A thorough investigation by the Health and Safety Executive (HSE) found that the grating panel had not been secured in line with the original equipment manufacturer’s (OEM) specifications, and that later inspections had not checked the deployment of Hilti clips, which areused to secure gratings to their substructures and stop them coming loose.

On the morning of 22 January, the rig’s hull was afloat and under tow towards Dundee for maintenance. As the day progressed, weather conditions deteriorated significantly, with windspeeds exceeding 30 miles per hour and wave heights well above five metres.

Mr Thomas, who was supervising the deck team during his shift, completed water integrity checks with a colleague at around 2pm. Both men had taken water over their boots during the checks. Mr Thomas was observed removing his coveralls and leaving his hard hat and gloves near the airlock door before changing into training shoes.

At approximately 2.30pm, he was seen taking a break in one of the staff lounges. Around 15 minutes later, a mechanic entered carrying a lifebuoy that had become detached from its holder on the main deck. Mr Thomas told him to leave it in the lounge and that he would ‘deal with it’. He was last seen at around 3.05pm leaving the lounge with a cup of coffee and his mobile phone.

At around 4pm, a colleague in the boot room heard a loud noise from outside. On opening the door to deck 1, he found that the grating immediately outside had been displaced, leaving a void above the waters of the North Sea. The control room was alerted immediately, but repeated tannoy calls failed to locate Mr Thomas. HM Coastguard was eventually contacted several hours later, shortly before 9pm. During the subsequent search of the rig, Mr Thomas’s hard hat, gloves and radio were found near the airlock door. His coveralls were never recovered. A search and rescue operation was launched under the direction of HM Coastguard but was called off the following day.

Mr Thomas’s mother subsequently obtained a presumed death certificate through the Welsh Courts, confirming that he died on 22 January 2023. She passed away shortly after receiving this confirmation.

Following the incident, the company replaced all polymer grating across its fleet with galvanised steel grating.

At Aberdeen Sheriff Court yesterday, Ensco Offshore UK Limited pleaded guilty to breaching Section 3(1) and 33(1)(a) of the Health and Safety at Work etc. Act 1974. It was fined £267,000 with an added victim surcharge of £20,025 also imposed – taking the total payable to £287,025.

HSE principal inspector Steven Hanson Hall said: “This was a profound tragedy which left lasting mark on Jason’s colleagues and his community.

“Jason Thomas was an experienced offshore worker who lost his life in the most unimaginable way possible. The fact his body was never found resulted in great anguish to his mother, who has also since died.

“The investigation was incredibly complex and thorough and we hope it has provided Mr Thomas’ remaining family with some closure and reassurance that we did everything we could to secure them justice.”