A platform supply vessel (PSV) approached a platform to deliver the cargo via snatch lift. The crane did not have enough boom reach and as the PSV approached the platform, the vessel’s stern collided with the platform mooring bollard which was damaged.
The accident
A platform supply vessel (PSV) approached a platform to deliver the cargo via snatch lift. After starting cargo operations, the crane did not have enough boom reach, so the vessel further approached the platform, while there were 2m waves at the time.
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The vessel’s stern collided with the platform mooring bollard which was damaged. Reportedly, the crew did not notice the damage, while a little later the client noticed it and reported it. No one was injured.
Probable cause
The incident is currently under investigation and more detailed information will be soon available. However, the initial findings have concluded in the following:
- Given the difficult operational conditions, there was excessive exposure to risk, possibly because of inappropriate planning. The operation should have stopped when conditions were found unsafe.
- Concerns had been raised previously, regarding the absence of fenders and mooring buoys around the platform, and regarding the limited reach of the crane. These had not been addressed. The vessel management should keep their fleet management informed of operational hazards and enable corrective actions with clients and other 3rd parties, as needed.
Lesson learned
- A proper documented and agreed guidance must be available at any time, describing the methods of safely approaching platforms, on escape routes and on go/no-go zones, particularly when new locations are involved.
- Moreover, crewmembers have to be informed of operational dangers and corrective actions. This is the vessel’s management responsibility.