Be aware that keeping hatches slightly open using only hydraulic pressure is a risky practice. The Nautical Institute gives this warning in its latest Mars Report, in which a crew member was killed after getting caught between the hatch cover and coaming.
The Nautical Institute gathers reports of maritime accidents and near-misses. It then publishes these so-called Mars (Mariners’ Alerting and Reporting Scheme) Reports (anonymously) to prevent other accidents from happening. This is one of these reports.
A bulk carrier in ballast was underway for the next port of loading. The deck crew were coating the vessel’s holds with lime in preparation for cargo. Some crew were in the hold applying the lime while others, in support, were on deck. An officer was on deck in an overall supervisory role.
In the late afternoon the hold coating operation work was nearing completion. The officer in charge needed to take photos of the coated holds, as required by the charterer. He slipped in between the partially open hatch cover and the hatch coaming to take the pictures. The crew members in the cargo hold heard the sound of the hatch cover moving and a loud yell.
The crew members working in the cargo hold came out to the main deck and asked why the hatch cover was closed. The deck crew replied that no one was operating the hatch cover at the time; they had not closed it. The officer was then found caught between the now closed hatch cover and the coaming. A return hydraulic oil hose for the hatch cover operation had ruptured and the hydraulic oil spilled on deck. This had caused the closure of the hatch by gravity.
The victim was killed instantly. His body was recovered from the scene as soon as the hatch cover control was repaired. Two days later, upon arrival at port the victim’s body was delivered to shore authorities.
Also read: Crew member dies after falling into hold through open hatch
Investigation findings
The investigation found, among others, that the hatch cover hydraulic lines and fittings were not incorporated into the vessel’s planned maintenance system (PMS) so that the manufacturer’s recommendations for use, maintenance and inspection could not be correctly employed.
Also read: Crew member dies after fall during ramp hatch maintenance
Advice from The Nautical Institute
- The victim probably did not realise he was putting himself in a dangerous position – only the hydraulic pressure was keeping the hatch cover open. When this pressure was released due to a line failure the hatch cover quickly closed by gravity.
- Keeping hatches slightly open using only hydraulic pressure is a dangerous practice. Any deficiency in the hydraulic line can cause the hatch to quickly close without warning.
- Shipboard safety management system (SMS) procedures and the PMS should incorporate manufacturer’s recommended operation, maintenance and inspection intervals.
Also read: Fatal collapse of portable tweendeck
Mars Reports
This accident was covered in the Mars Reports, originally published as Mars 202422, that are part of Report Number 378. A selection of the Mars Reports are also published in the SWZ|Maritime magazine. The Nautical Institute compiles these reports to help prevent maritime accidents. That is why they are also published (in full) on SWZ|Maritime’s website.
More reports are needed to keep the scheme interesting and informative. All reports are read only by the Mars coordinator and are treated in the strictest confidence. To submit a report, please use the Mars report form.







