Swift action saved stress – Know your vessel
Comments from the report:
This is a positive report which highlights how familiarity of Key DP Personnel with the vessels Critical DP systems can lead to a successful outcome following a failure, which in this case had the potential to remove one redundant group.
We can all get into these situations, but it is how we react to them that defines us.
Considerations of the IMCA Marine DP Committee from the above event:
This event highlights the need for DP Key Personnel having good knowledge of their roles within the DP system of their vessel.
IMCA M 117 Section 7 Qualification and Knowledge Requirements of Key DP Personnel – gives guidance for Key DP Personnel.
The report highlights the importance of the detection elements of the DP system, and the requirements for periodic testing, such as low-level alarms and pressure transducers.
Although not related to the event the number of same principle references seems inadequate. IMO MSC Circ. 645 and IMO MSC.1 Circ. 1580 guidance documents state that for DP 2 or 3 operations:
There is a requirement for 3 independent position references simultaneously available during operation based on two different principles.
DP Event
Published: 13 December 2021
Download: 
IMCA DPE 04/21
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The following case studies and observations have been compiled from information received by IMCA. All vessel, client, and operational data has been removed from the narrative to ensure anonymity.
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