Preliminary report by the Commission of Inquiry completed Estonia sinking began with the detachment of the visor
Backman Nils-Eric 5.10.1994 2:00
The cause of the sinking of TURKU-Estonia has been confirmed by a devastating sequence of events. First the ship's visor was cut off, then the water leaked through the bow ramp to the car deck in the storm. When the car deck filled with water, the ship lost its severity and capsized. Many of the events that led to the accident, on the other hand, are unclear. It is not known what time it all happened and what information was available on the bridge prior to the accident. It remains unclear what action the ship's officers and crew had taken at different stages of the accident.
On Tuesday, the International Commission of Inquiry into the Estonia disaster published its preliminary report in Turku. The Commission is of the opinion that the vessel lost its stability and was overturned by the water accumulated on the car deck. The water got to the car deck at the bow ramp.
Video descriptions of the Estonia wreck show that at some point the ship had lost its visor. The images show that the visor locking brackets on the hull of the vessel have been broken.
Kari Lehtola, a member of the International Commission of Inquiry and chairman of the Finnish Major Accident Investigation Planning Board, says that it is not yet known whether the fracture of the visor attachment mechanism was caused by metal fatigue or local overload. So far, the side locks of the visor have not been studied. The Commission therefore decided that more frontal parts of the wreck will be filmed with robotic cameras in the coming weeks. The Commission will then next meet in Tallinn. In addition, before dispersing, the Commission decided that the Estonian and Finnish delegations would launch the search for estonia vis-10.
"It is absolutely essential to find and lift the visor to determine the reason for its detachment," Lehtola says. So far, it is not known how much the visor came off before estonia sank. According to the Commission of Inquiry, it appears that since estonia lost its visor, the waves have gradually caused the bow ramp fasteners to give way and the ramp has opened somewhat outwards. It has not yet been possible to determine whether the ramp's fastenings were broken or opened. It is also not yet known whether the detachment of the visor already caused a leak in estonia.
According to the Commission's report, it has so far not been possible to point out any faults in the ramp fastening system that would explain why the ramp opened in the sea. Nor has it been yet been able to investigate the betrayal of the ship's distress signal lines.