The fire on board the Liberia-flagged bulk carrier Almirante Storni broke out off the island of Vinga in the Gothenburg archipelago on Saturday afternoon.
According to the Coast Guard, the fire started in wood loaded on the upper deck of the ship's hull.
A protocol that SVT has read shows that the ship was inspected by the authorities in the UK as recently as a few weeks ago.
A total of ten deficiencies were then discovered, three of which concerned fire safety.
Among other things, the inspectors determined that the personnel on board were inadequately trained in fire safety and that the preventive fire safety work was not sufficient.
In addition, they found that the ship's structure to prevent fires from spreading between different parts was deficient.
A total of 42,000 cubic meters of wood were loaded on the ship in Orrskär harbor in Söderhamn.
SVT has also spoken to the operations manager in the port, who among other things says that the work of loading the ship took time because the ship was in poor condition.
Inspection awaits
The tightly packed timber on board the bulk carrier makes the fire difficult to access and on Monday morning it was still not extinguished.
- We have continued with undiminished force to spray large amounts of water over this burning vessel, or rather where the cargo is burning, says Mattias Lindblom, press spokesperson at the Coast Guard.
At present, there is no suspicion of crime, according to police.
At the same time, it has not yet been possible to get close enough to get an idea of how the fire started.
The Swedish Transport Agency will, as soon as the fire is extinguished, begin its inspection of the ship.
SVT has contacted the German shipping company NSC Holding, which owns the ship, to ask questions about the shortcomings but has not yet received an answer.
Do you know more? Tip SVT's reviewing reporters.
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See photos from Sunday's firefighting work Photo: Kustbevakningen / Sjöräddningssällskapet Hovås