Incident Overview

A serious engine room incident occurred onboard a dredger during routine operations at a dredging site, resulting in the fatal injury of the Engineer of the Watch (EOW). The event highlights critical safety failures in fuel leak management, communication protocols, and hot work controls. During watchkeeping duties, the EOW identified a minor leak in the low‑pressure diesel supply line. Attempting a temporary repair while the engine was operational — without notifying the bridge or Chief Engineer — led to fuel-soaked PPE and subsequent ignition from a portable angle grinder, resulting in fatal burn injuries.

Technical Risk Analysis

Diesel fuel, though less volatile than lighter distillates, poses a severe risk when atomized under pressure. The combination of fuel mist and ignition sources like grinding sparks creates a high-risk environment. Proper isolation, depressurization, and ventilation are non-negotiable requirements before any repair.

Key Safety Lessons

• Isolation is Mandatory: Never repair fuel systems on running machinery without authorization.
• High-Risk Hazard: Treat all fuel leaks as immediate fire threats.
• Hot Work Discipline: Enforce strict permit-to-work systems for all ignition-producing tasks.
• PPE Management: Contaminated clothing must be removed immediately to eliminate fire risk.
• Communication: Maintain strict chain-of-command reporting during all maintenance.