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Annabella

Name
Annabella
Accident date
26/02/2007
Location
Baltic Sea
Accident area
near Gotland Island (Sweden)
Spill area
Offshore
Cause of spill
Structural damage
Nature of pollutant
Butylene
Ship / structure type
Container ship
Built date
2006
Shipyard
Sietas Schiffswerft, Hamburg, Allemagne
Length
134.44 m
Flag
British
Owner
Annabella Shipping Limited
Manager
Döhle (IOM) Limited, Île de Man, Royaume-Uni

During the evening of 25 February 2007, on passage in the Baltic Sea, the Britannic container ship Annabella encountered heavy weather which caused the vessel to roll and pitch heavily. The next morning, crew discovered that a stack of seven containers had collapsed against the forward part of the hold. This resulted in damage to the containers, the upper three of which contained a hazardous cargo: butylene gas. The vessel was redirected to the port of Kotka (Finland) where the damaged hazardous containers were safely unloaded.

After investigation, it appeared that the collapse containers occurred as a result of downward compression and racking forces acting on the lower containers of the stack, which were not strong enough to support the stack as their maximum allowable stack weight had been exceeded and no lashing bars had been applied to them. This accident shows there are shortcomings in the flow of information between the shippers, planners, the loading terminal and the vessel crew that can bring about catastrophe.

The shape of the container which was on the bottom of the stack (source: International Tank Container Organisation)
The shape of the container which was on the bottom of the stack (source: International Tank Container Organisation)

Source:

- MAIB, 2007, Report on the investigation of the collapse of cargo containers on Annabella, Baltic Sea, 26 February 2007

Last update: 14/09/2009

External links

N-Butene, Material Safety Data Sheets