Fatality in the Cargo Hold (Enclosed Space) The MAIB report on three stevedore deaths aboard a bulk carrier highlights the dangers of enclosed spaces and failures in supervision and safety protocols. Key issues included toxic, oxygen-deficient atmospheres, lack of training, unsecured access, and non-compliance with safety procedures. Loss Prevention Loss Prevention Published: April 23, 2025 Contact author Download article pdf The UK Marine Accident Investigation Branch (MAIB) has released report no. 5/2025 investigating the deaths of three stevedores in a cargo hold access space on board a bulk carrier. The investigation highlights not only the dangers and hazards of enclosed spaces but also the importance of ensuring proper supervision of shore personnel working onboard ships.  According to the MAIB report, the vessel was loading bulk coal and during a rain delay, all cargo hold hatches were closed. Once the rain stopped, a stevedore attempted to access a bulldozer located in cargo hold No.7 but mistakenly entered the access hatch for hold No.8, where he was overcome by the atmosphere inside. The collapsed stevedore was located and the alarm raised, it was whilst the rescue equipment was being assembled that two other stevedores collapsed after entering hold No.8 access hatch to try and rescue him. The three casualties were recovered from the access space but, despite medical attention being administered, they failed to regain consciousness, and were declared deceased. The MAIB investigation concluded that contributory safety issues were: Entry into an enclosed space that had a noxious atmosphere, deficient in oxygen and high in hydrogen sulphide, that could not sustain life. Inadequate supervision. Lack of routine atmosphere testing. Unsecured access points to enclosed spaces. Stevedores having little or no understanding of safety warning signs and being unaware of the inherent risks of enclosed spaces. Permit to Work was not used for cargo hold access when l