Seawater entering cabin caused electrical fault

  • Safety Flash
  • Published on 12 August 2019
  • Generated on 31 January 2026
  • IMCA SF 19/19
  • 1 minute read

During vessel operations, a porthole in a passenger’s cabin was left untightened and slightly ajar.

What happened?

This allowed for seawater to enter the cabin and seep into the electrical socket under the porthole causing a short circuit resulting in burnt wiring and smoke in the cabin.

A passenger observed the smoke and raised the alarm; the response team attended the scene and immediately isolated the supply.

The Master subsequently held a time out for safety – involving all passengers and crew – to highlight the safety failings, potential outcomes and improvements required regarding this near miss.

a cabin porthole was left slightly ajar, allowing seawater to enter the cabin and seep into the electrical socket under the porthole causing a short circuit resulting in burnt wiring and smoke in the cabin
seawater to enter the cabin and seep into the electrical socket under the porthole causing a short circuit resulting in burnt wiring and smoke in the cabin

What went wrong?

Cabin occupants failed to ensure that portholes were closed during vessel transit.

What actions were taken?

  • Ensure all are given full and appropriate vessel induction when boarding, and that all are aware of the need to maintain watertight integrity at all times.

  • Ensure full and effective watertight integrity inspections are made and confirmed when leaving port.

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