Manhole opened and not correctly closed

  • Safety Flash
  • Published on 6 July 2020
  • Generated on 22 February 2025
  • IMCA SF 20/20
  • 2 minute read

What happened?

During a safety round on deck prior to cargo operations it was noticed that a manhole had been opened in order to pump out ballast water to replace a faulty valve.

During a safety round on deck prior to cargo operations it was noticed that a manhole had been opened in order to pump out ballast water to replace a faulty valve.

What went wrong?

The manhole cover or hatch nuts had been completely removed and the cover was only placed back on top and was left completely unsecured.

There was no barrier tape nor any warnings placed to indicate that the cover was open and unsecured.

Bypassing safety controls:

  • Crew did not follow company procedures.
  • No warnings were posted.
  • It did not occur to the crew doing this work to consider the potential risks of persons falling inside or slipping from standing on the manhole cover while so placed and not secure.

Actions

Members may wish to refer to:

  • LTI: step into open deck hatch causes fall [causal factor: the forward hatch was left open when the lifting operations started. There were no barriers around the hatch]
  • Near-miss: Open hatches left without barriers [10 hatches were left open for ventilation without any protection/control measures or any barriers for each hatch]
  • Near miss: engine room hatch left open without barriers [The hatch was not closed when not in use – if the hatch was required to be left open, suitable barricades and warning communication should have been in place]

Latest Safety Flashes:

Crew transfer vessel (CTV) drifts onto turbine tower

A CTV drifted into and hit a nearby structure at 0.5 knots.

Read more
LTI: Fall from height during FRC maintenance

A worker fell 2.3 m to deck from a small boat in the davit, and broke a leg as a result. 

Read more
Near miss: narrowly avoided fall from height due to missing deck gratings

After a grating was removed, the Chief Engineer, on the way to inspect the work, nearly fell 4-5m.

Read more
MSF: A broken stretcher could have led to injury

The Marine Safety Forum (MSF) published Safety Alert 24-09 relating to a broken stretcher.

Read more
Positive story: Excellent galley hygiene and housekeeping

On a walk-around audit, a member highlights very high standards of housekeeping and hygiene in the galley on one of its vessels.

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.