News in Brief from the DP Committee
- DP Event
- Published on 16 January 2025
- Generated on 14 May 2025
- DPE 01/25
- 2 minute read
Revised Documents
-
M140 rev. 2 – Recommended Practice for Specification and Use of Capability Plots
-
M149 Issue 14 – eCMID Vessel Inspection (≥500gt) – formerly the Common Marine Inspection Document
-
M189 Issue 7 – eCMID Small Vessel Inspection (<500gt) – formerly known as eMISW, applicable to small workboats and other vessels
-
M167 rev. 5 – Guidance on the IMCA eCMID System
-
M220 rev.3 – Recommended Practice on Operational Activity Planning
New Marine Documents
-
M268 – Recommended Practice for the operation of Class 1 DP vessels
-
M269 – Dynamic Positioning Station Keeping Review – Incidents and events reported in 2024
Station Keeping Events STATS
2024 saw a record number of event forms being submitted in to IMCA, with 217 forms from 56 companies submitted. This month each of those companies received their certificate of participation, to show our appreciation for them taking the time to complete and report their events, whether big (incident) or small (observation).
Figure 3 – A decade of reports
The secondary failures recorded (the trigger behind the event) continues to be same top three as previously years, namely electrical, mechanical and human and though still higher than precovid, the percentage of DP incidents appears to be on a downward trend.
Figure 4 – Secondary Failure Trends
Figure 5– Percentage of DP Event Reports received resulting in DP Incidents
(loss of position/heading)
To see the report in full the Dynamic Positioning Station Keeping Review – Incidents and Events Reported for 2024 can be downloaded from our website. here.
The IMCA DP reporting form is currently available upon request from dpreports@imca-int.com. Please complete and forward to the same address dpreports@imca-int.com.
Latest DP incidents
-
Complete the job
Whilst connected to a turbine, an alarm was generated on the DP operator station, ‘Unbalanced load on SWBD 1’.
DPE 01/25
16 January 2025
Undesired event
-
How is your alignment?
Loss of the CyScan position reference system generated a reference system failure alarm and moments later the vessel began to lose position with the accompanying alarms.
DPE 01/25
16 January 2025
Incident
-
Beware your centre of rotation
The stern thrusters started to oscillate which transferred to an oscillating motion of the vessel and high forces were being used to try to maintain position.
DPE 01/25
16 January 2025
Incident
-
A-Tension
Whilst pipelaying in shallow water, the vessel experienced a tension sensor failure on one tensioner.
DPE 01/25
16 January 2025
-
DP Drill Scenario
DP emergency drill scenarios are included to assist DP vessel management, DPOs / Engineers, and ETOs in conducting DP drills onboard.
DPE 01/25
16 January 2025
Drill Scenario
The case studies and observations above have been compiled from information received by IMCA. All vessel, client, and operational data has been removed from the narrative to ensure anonymity. Case studies are not intended as guidance on the safe conduct of operations, but rather to assist vessel managers, DP operators, and technical crew.
IMCA makes every effort to ensure both the accuracy and reliability of the information, but it is not liable for any guidance and/or recommendation and/or statement herein contained.
Any queries should be directed to DP team at IMCA. Share your DP incidents with IMCA online. Sign-up to receive DP event bulletins straight to your email.