Unsafe flooring led to man overboard fatality

  • Safety Flash
  • Published on 3 October 2023
  • Generated on 19 September 2025
  • IMCA SF 23/23
  • 2 minute read

A fatality occurred in January 2023, on an offshore worksite, whereby a worker fell overboard because of a dislodged section of polymer grating, commonly used in the offshore industry.

What happened?

(This incident did not occur on an IMCA Member's facility.)

On a jack-up rig in transit, a crew member was reported missing, believed to have gone overboard.

The missing crew member finished their shift at 18:00 and was last seen just after 19:00. 

During the investigation it was identified that a section of polymer grating outside an accommodation door, used to provide a means of access and egress, had become dislodged, thereby exposing employees to the hole in the decking area.

It is understood that the lost crew member must have fallen through this hole.

Further inspection by the UK Health and Safety Executive (HSE) revealed that further multiple polymer grating systems had been installed similar to the one that was dislodged and were found to be unsecure.

See also https://www.hse.gov.uk/safetybulletins/floor-grating-systems.htm.

On a jackup rig in transit, a crew member was reported missing, believed to have gone overboard. The missing crew  member finished their shift at 18:00 and was last seen just after 19:00. During the investigation it was identified  that a section of polymer grating outside an accommodation door, used to provide a means of access and egress,  had become dislodged, thereby exposing employees to the hole in the decking area.

Examples of typical polymer grating systems and detail of various fittings

 

Actions

There is potential for a similar incident to occur on IMCA members’ vessels or installations, in work areas such as towers, reels, cranes and access platforms, or ROV systems, and on external walkways.

  • Identify areas on the vessel where this kind of grating is found (Glass Reinforced Plastics (GRP) or Fibre Reinforced Plastics (FRP)) and ensure that the fasteners are installed as per the OEM instructions.

  • Ensure the possibility of such grating coming loose and falling, is included in existing dropped object checklists.

  • Update planned maintenance systems as required.

Latest Safety Flashes:

SWL plate dropped from crane block

An “SWL” plate weighing 0.9kg fell from the auxiliary hook block and landed on the main deck of a newly purchased vessel.

Read more
Unsafe Lifting practices during dry dock

An unsafe attempt was made to lift 14 empty oil drums using only a web sling, without clamps, certified frames, or proper securing.

Read more
Handling alarms on the bridge – a DP incident

DPO accidentally pressed the adjacent "Take" button on the DP panel.

Read more
Uncoordinated Emergency Shutdown due to pipe failure

All cargo pumps (No. 1, 2, and 3) tripped simultaneously due to Emergency Shutdown (ESD) activation.

Read more
UK HSE: oil company fined after serious failure of elevator

The UK HSE has fined a North Sea oil and gas operator £300,000 after three crew members descended into a water filled lift shaft on a floating platform in the North Sea causing them to become partially submerged.

Read more

IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of the entire offshore industry.

The effectiveness of the IMCA Safety Flash system depends on the industry sharing information and so avoiding repeat incidents. Incidents are classified according to IOGP's Life Saving Rules.

All information is anonymised or sanitised, as appropriate, and warnings for graphic content included where possible.

IMCA makes every effort to ensure both the accuracy and reliability of the information shared, but is not be liable for any guidance and/or recommendation and/or statement herein contained.

The information contained in this document does not fulfil or replace any individual's or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.

Share your safety incidents with IMCA online. Sign-up to receive Safety Flashes straight to your email.