Get it fixed!! Deteriorated seals on emergency hatch

  • Safety Flash
  • Published on 11 March 2022
  • Generated on 26 January 2026
  • IMCA SF 06/22
  • 2 minute read

Deteriorated seals were found on a number of hatches during an inspection.

What Happened?

During an inspection of a vessel as a part of the 5-yearly docking, deteriorated seals were found on a number of hatches.

Preliminary investigation was conducted and after crew feedback, it was revealed that the  crew had observed this unsafe condition some while ago, ordered and received new seals, but had continued to operate with no action, waiting for docking in order to replace deteriorated seals etc.

Hatch seals perform a vital role in a wide variety of marine applications. The hatch seal ensures that no liquid or gas is able to enter the vessel. After a period of use seals can deteriorate and become worn which reduces potential sealing properties. In this case, there was the risk of potential seawater leakage to the engine room had no action been taken.

Deteriorated seals on emergency hatch

What went wrong? What was the cause?

  • Lack of risk perception and lack of timely action by vessel crew after identifying deteriorated seals – continuing to operate in an unsafe condition, considering waiting until the vessel was docked.

Actions

  • “If it isn’t broken, don’t fix it” is a call to inaction – if something needs dealing with, deal with it now, not later.

Latest Safety Flashes:

Dropped GRP cover during subsea lifting

A vessel was lifting and relocating a Pipe Line End Manifold (PLEM) GRP Top Cover when the load became detached and dropped approx. 7m.

Read more
Umbilical support frame made contact with passing vehicle on public road

Whilst travelling, a contractor transporting umbilical support frames (USFs) made contact with a passing vehicle as one of the frames dropped down.

Read more
Petrol driven equipment left stored in an emergency generator room

Stored snowblower created an unnecessary fire and explosion risk, as well as blocking access around critical equipment.

Read more
Mechanic got burns due to fire in portable generator

During refuelling, petrol (gasoline) spilled around generator and ignited.

Read more
Some positive findings and good practices

Collection of some positive findings and good practices.

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.