Positive: Master stopped unsafe fuel transfer whilst vessel alongside rig

  • Safety Flash
  • Published on 13 November 2023
  • Generated on 15 March 2025
  • IMCA SF 26/23
  • 1 minute read

During fuel transfer operations alongside a semi-submersible rig, the officer on watch on the supply vessel PSV observed welding work being undertaken on the deck of the rig. 

What happened?

The vessel bridge immediately communicated this information to the rig control room using VHF, challenging why bunkering and hot work activities were being  carried out simultaneously.

Stop Work authority was applied; the vessel stopped fuel transfer.

What went right?

The vessel bridge team immediately intervened and challenged the unsafe condition of hot work (potential fire risk) taking place in close proximity to fuel transfer.

The unsafe condition was reported immediately to the client and to company management.

The client’s rig management team positively recognised the vessel’s intervention and initiated an investigation of failure of communication to prevent re-occurrences.

Officer of the Watch on supply vessel observed hot work being performed on deck of the rig

PSV alongside semi-submersible rig, observes hot work being conducted while fuel transfer operation in progress

hot work observed by crew (orange figure on deck, circled, right)

Hot work observed by crew (orange figure on deck, circled)

What went wrong?

  • That hot work was taking place, was not communicated to vessel.

  • Confirmation by the rig that SIMOPs were occurring, was a mandatory part of the Safety Zone checklist communication process.

Latest Safety Flashes:

Divers helmet struck and damaged subsea by crane hook

During subsea spool tie-in operations, a crane hook unexpectedly struck a diver’s helmet. 

Read more
Diver lifted off seabed

A diver was lifted off the seabed when their umbilical was caught by a diving bell clump weight adjustment prior to bell recovery.

Read more
MAIB: Very serious leg injury during crane operations

The UK Marine Accident Investigation Branch (MAIB) published Accident Investigation Report 11/2024 into an incident where a crew person was seriously injured while operating a crane.

Read more
Person fell in engine room and injured head

An oiler sustained head injuries while working alone in the engine room.

Read more
MSF: Cook got chemicals in eye

The Marine Safety Forum (MSF) published Safety Alert 24-10 relating to an incident in which a cook got chemicals splashed in the eye.

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.