Incident with assisted mooring
- DP Event
- Published on 14 May 2020
- Generated on 6 September 2026
- DPE 02/20
- 1 minute read
Incident
There appears to be no consideration to the external force being applied to the vessel due to the use of mooring lines when in DP.
Comments
During cargo operations in DP assisted mooring, due to undefined information being fed to the DP system, the pitch on the port propeller increased to maximum. The vessel started to drive off the installation with the crane connected to the load, dimensions 3.5*10.5*6.5 m weighing 11 M Tons. All deck crew were already in safety area behind crash bar ready with tug lines for the lift.
Considerations
- There appears to be no consideration to the external force being applied to the vessel due to the use of mooring lines when in DP.
- If an external force is applied to a DP vessel without feedback and correct configuration within the DP system, it will have unintended consequences.
- It appears an appropriate Activity Specific Operating Guideline (ASOG) was not in use.
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