Overview This case study examines an incident involving a Construction vessel that experienced an insufficient thrust alarm while holding Dynamic Positioning (DP) position during offshore installation crew transfer operations. The […]
DP Event Bulletins
DP station keeping event bulletins enhance the traditional reporting and analysis of dynamic positioning station keeping events and incidents. They ensure that the industry is provided with prompt feedback, including anonymous factual case studies of events reported to IMCA.
Individual DP events are available individually online, tagged and searchable, while the traditional PDF collections are also available for download.
To be included into the subscription list for the DP Event Bulletin emails, email communications@legacy.imca-int.com
Submit a Report
All members are encouraged to contribute relevant DP information by using our reporting template which is available under Submit a Report where you will also see details on how to submit your information.
IMCA Contact
Richard Purser
Technical Adviser - Marine
Contact
DP Events
DP drill scenario
DP emergency drill scenarios are included to assist DP vessel management and DPOs / Engineers and ETOs to conduct DP drills onboard. The intent is that the template can be […]
News in brief from the DP Committee
M190 Code of practice for developing and conducting DP annual trials programmes and M191 Code of practice for DP annual trials for mobile offshore drilling units, published June 2023 M117 […]
Important PRS considerations when operating close to an asset that is not rigidly fixed to the seabed
1 Overview It has come to the attention of the IMCA DP Committee that, in recent years, there have been a number of collisions between vessels undertaking DP operations near to […]
What have the Alarms ever done for me?
1 Overview A DP vessel with a two-way redundant split was engaged in cargo operations alongside a fixed platform, the environmental conditions at the time were marginal however the vessel was […]
Distraction – Don’t text and navigate
1 Overview A dynamic positioned (DP) PSV was conducting operations near a drilling rig in the North Sea. The DPO of the PSV was using their phone while they were […]
Incorrect entry of DP Rotation Point offsets
1 Overview A vessel was engaged in Driving and ROV work over a live manifold. During ROV dive the vehicle had taken receipt of a hot stab connected to a recently […]
News in Brief from the DP Committee
1 Station Keeping Events STATS: The information below is a snapshot of the DP Station Keeping events to date for 2023. Figure 6‑1 Event Stats The percentage of DP incidents […]
Case Study – Human Factor – Position Reference Confusion
1 Overview A DP 2 vessel was engaged in diving operations and had deployed an ROV. The vessel was on Auto DP with two DGNSS and two HPR position references […]
News in Brief from the DP Committee
1 Information Notes 2 Codes & Recommended Practice 3 Station Keeping Events STATS: The information below is a snapshot of the DP Station Keeping events to date for 2023. The percentage of DP […]
DP Drill Scenario
DP emergency drill scenarios are included to assist DP vessel management and DPOs / Engineers and ETOs to conduct DP drills onboard. The intent is that the template can be […]
Case Study – Human Factor – Training for new Vessel essential
1 Overview of the Event A DP2 vessel was conducting Pull Back operations on an FPSO, the vessel DP Mode was set to towing at 60 tons, utilising the thrusters […]
Case Study – Common Power Supplies – Don’t have all your eggs in one basket
1 Overview A vessel was conducting operations while operating in DP Follow Target Mode alongside a pipelayer. Unexpectedly, all six thrusters stopped functioning and were unavailable to DP Control. The […]
Case Study – Hybrid Failure
1 Overview of the Event A PSV was conducting DP operations within a 500m Zone. The vessel had an energy storage system (ESS) fitted and was configured closed bus with […]
Case Study – Open Bus Saved the Day
1. Overview of event A DP2 vessel was conducting trenching operations within a wind energy field. The vessel was operating open bus with two redundant groups. The vessel has a […]
Case Study – Vessel Degraded Capability
1. Overview A PSV was conducting DP operations in an open bus 2-way configuration. The vessel had 2 redundant groups, each with 2 generator and 2 azimuth thrusters. The Worst […]
Case Study – Closed Bus – Knowing the Risks
1. Overview of event A blackout and subsequent failure of the automatic blackout recovery systems occurred on an offshore construction vessel. The DP system was designed around a three-way split in […]
News in Brief
IMCA published IMCA M 259 – Guidelines for the Management of DP System Network Storms in September 2022. Station Keeping Events STATS: The information below is a snapshot of the […]
DP Drill Scenario
DP emergency drill scenarios are included to assist DP vessel management and DPOs/Engineers and ETOs to conduct DP drills onboard. The intent is that the template can be used on […]
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