Real Life Incident: Two Crew Overboard In Heavy Weather

A bulk carrier, loaded to maximum draught, was underway with the main engine running on half ahead. In calm weather, a half ahead engine on this vessel would give a speed of about 9 knots, but due to the very unfavourable weather conditions, the vessel’s speed was about 3 knots.

Some loose mooring ropes were observed on the poop deck, with some dangling over the vessel’s guard rails. The OOW and the Master were made aware of the situation and the chief officer proceeded to the poop deck with the bosun to assess the situation.

Once on deck, they attempted to lift the ropes from the poop deck to deck 1. This proved too difficult. The ropes were heavy and most of them were entangled with other mooring ropes. The chief officer proceeded to the poop deck in order to attempt the task. He managed to retrieve one of the mooring ropes and then proceeded to untangle another but this again proved too strenuous, so he asked for help on the poop deck.

Three more deck crew arrived on deck 1 to assist. Some ropes were brought on board and untangled, with some crew working on deck 1 and the chief officer and a trainee on the poop deck. Suddenly, a large wave washed over the poop deck from starboard. Within seconds of the first wave, a second larger wave washed on board from the same direction. The two crew on the poop deck were swept overboard.

Due to the vessel’s low speed and the inclement weather conditions, it took over 20 minutes for the vessel to turn on a reciprocal course and to proceed towards the man overboard position. Six lifebuoys were released, including the two from the bridge wings. The liferaft embarkation ladder was rigged on the vessel’s side and crew members were posted as lookouts at several high points on the vessel.

The local coastguard deployed two search and rescue helicopter to assist in the search. The helicopters were able to identify two of the lifebuoys that were thrown by the vessel’s crew; however, there was no sign of the two victims. By night time, the search and rescue operation was terminated by the coastguard. The ship remained on location until noon the following day without finding any survivors.

The official investigation found, among other things, that neither victim was secured to the vessel with a lifeline when the waves washed over the poop deck. Additionally, the crew members were not wearing lifejackets while working on the exposed deck in adverse weather conditions.

Lessons learned

• Hindsight is always 20-20, but most vessels loaded to maximum draught are susceptible to breaking waves in heavy weather, even on the poop deck. Lifelines must always be considered for emergency deck work in heavy weather, as must lifejackets.
• Before undertaking an unusual or undocumented task, take a few minutes to do a risk assessment among the team members, even if only verbally.

Reference: nautinst.org