Near-miss: Modification of machinery

  • Safety Flash
  • Published on 2 August 2003
  • Generated on 13 September 2026
  • IMCA SF 10/03
  • 1 minute read

A Member has advised of the following near miss. A mechanic was working on a jet pump when a bracket holding the jet hose failed. 

What happened?

The bracket was being used to rack jet hose. When falling, the hose could potentially have struck the mechanic and caused injury. Fortunately it did not.

Investigation showed that the bracket had been welded to the jet pump in the field and appeared to have failed upon the equipment returning from a project.

The company has noted the following:

  • Welding or cutting reduces the designed strength of a frame and can causing lifting points and/or the frame to fail during lifting options.
  • Any modifications to standard-configuration equipment needed ‘in the field’ should be considered using the company’s management of change procedure prior to them being carried out.
  • Any such modifications will only be made after completion and approval of the management of change process, involving rotating stock and safety personnel.
  • Any such modifications, if approved, should only be carried out by an appropriately certified welder.
  • No modifications should be made which bypass or override any safety device under any circumstance.

Latest Safety Flashes:

Shoulder injury during intrusive work on pressurised hydraulic system

A hydraulic technician sustained a left shoulder injury during maintenance on a known small leak on a main hydraulic pressure line.

Read more
Galley fire alarm during diving operations

There was a galley fire alarm during active surface-supplied diving operations.

Read more
Unauthorised firing of rocket line

Without warning or agreement, Line Throwing Apparatus (LTA) was discharged by the tanker deck crew, splitting into two parts.

Read more
Unauthorized modification of main engine fuel pump linkage

An unsafe and unauthorized modification was identified on the main engine high-pressure fuel pump linkage arrangement.

Read more
Mooring rope caught in stern thruster

Confusion whilst unmooring as it was being prepared for departure from port, led to mooring ropes being caught in the stern thruster.

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.