UK HSE: Employee in shipyard killed by falling steel post

  • Safety Flash
  • Published on 2 December 2021
  • Generated on 4 May 2026
  • IMCA SF 33/21
  • 2 minute read

The UK Health and Safety Executive (HSE) has prosecuted a shipbuilding and repair company after an employee was fatally injured when struck by a 10m steel post.

What happened?

Five workers were adapting a large bogie used to land and launch vessels on and off the company’s slipway. 

One of the bogie’s steel side-posts weighing approximately 1800 kg fell and fatally struck the employee on the back of the head.

What went wrong?

HSE investigation found that:

  • The steel side-post had only been secured to the crossbeam on the bogie by two slackened bolts.

  • The steel side-post was not supported by a crane or other means at the time of the incident.

  • The company had failed to carry out a suitable and sufficient risk assessment and implement a safe system of work.

  • The company did not provide the information, instruction, training and supervision necessary to ensure the health and safety at work of its employees during the task of regulating the slipway.

Lessons learned

The HSE inspector noted:

“This incident was entirely preventable if the risk had been identified and suitable control measures put in place. Adequate training and supervision should also have been in place to ensure the regulating of the slipway was carried out safely by employees.”

Latest Safety Flashes:

Failure of moonpool railing system caused man overboard situation in moonpool

A crew member was working in the moonpool area when they lost balance and fell in but managed to grab hold of the guidewire, preventing an uncontrolled fall into the sea.

Read more
Diver entanglement – uncontrolled equipment in the water column

A diver hung a rubber mat with welding rods connected with a rope and carabiner to the rope suspending the welding cables resulting in a compromised work area.

Read more
Diver entanglement – umbilical caught around an anode

A diver’s umbilical got caught around an anode attached to a conductor shaft at 18 msw.

Read more
Unsecured sheave pin fell from crane

A sheave pin weighing 1.3 kg was found on deck.

Read more
Heaving line snap-back causes injury
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.