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Transport Malta has published its investigation report on the sinking of the fishing vessel Zaira in Marsascala Bay, resulting in death of two fishermen on 4 May 2019. The findings from the investigation show that the vessel sank after flooding of compartments and a loss of stability in heavy weather.
On 4th May, Zaira was heading towards Valletta to seek shelter from inclement weather. The vessel was around 3.5 nautical miles from Valletta, when a high wave from the East caused it to heel heavily to the port side. Eventually, a second wave caused the vessel to heel further to port and she started to take in water through her hull openings. The fishermen lost control of their vessel and had to abandon it.
The combined wind and wave action caused the vessel to drift towards Marsascala Bay, where it eventually foundered and came to rest on the bottom of the seafloor with its mast above the sea level. Two fishermen made it ashore, but two others perished and were recovered several hours later.
Probable causes
-of sinking:
In all probability, Zaira sank following flooding of compartments in adverse weather conditions, leading to loss of buoyancy and stability.
-of deaths: None of the fishermen were wearing lifejackets. The mechanic jumped overboard in rough weather conditions while the deck boy was pulled out of the sea after the liferaft capsized. In the absence of autopsy reports, the investigation attributed the deaths of the two fishermen to drowning.
-of flooding: Survivors recalled that the vessel did not return to the upright position after the first wave hit its starboard side. Then, a second wave caused the vessel to heel further to its port side and eventually it started taking water and could not be recovered.
The poop deck was not entirely open to sea as it had a sheltered deck covering over the sides and the engine-room, and an extended bulwark on the starboard side.
Zaira was encountering waves of at least five metres high. Due to the vessel’s motion in the sea, with her bulwark being two metres high, the raised forecastle deck wide open, and her poop deck open at the stern, seas were being swept onto her decks. Additionally, the door from the raised forecastle deck to the port side deck was found in two pieces. This would have allowed the water to flow down to the port side deck.
Conclusions
– In all probability, Zaira sunk due to flooding of compartments and loss of stability.
– The probable cause of death of the mechanic and the deck boy was drowning.
– The wooden door leading from the raised forecastle deck to the port side deck had failed.
– Most of the access openings to Zaira’s compartments were found open, allowing water ingress.
– The fish hold hatch cover rubber gaskets were worn out and the securing points were covered with rubber strips, thus compromising the weathertightness of this hatch cover.
– The wind and wave action were causing the vessel to heel to port side.
– Most probably the fish in the fish hold shifted to port side, causing the vessel to list to port.
– The flooding of compartments reduced Zaira’s freeboard, thereby making her susceptible to additional flooding.
– No lifejackets were donned by the fishermen during the rough sea passage to Valletta.
– The bilge alarm panel may have been damaged by sea water, thus giving no indication of the ingress of water.
– The bilge pumps had not been started.
Transport Malta has made the following recommendations to the owners of Zaira
– install a watertight hatch cover in way of the fish hold.
– install weathertight doorways, to reduce the risk of ingress of water into the vessel’s lower compartments.
– increase the number of freeing ports on the freeboard deck to avoid water collection.
– carry a waterproof VHF radio for use in case of emergencies.
Download the report in full: Transport-Malta-MV-Zaira_Final-Safety-Investigation-Report