Simultaneous activities on the bridge caused a DP incident
- DP Event
- Published on 3 December 2020
- Generated on 26 December 2024
- DPE 04/20
- 1 minute read
Incident
Jump to:
The experienced DPO was new to the vessel and misinterpreted a 30 degree heading increment as being a 30 degree/min rate of turn.
Comments
The DPO, though experienced, was new to the vessel and the DP system. He had undergone familiarisation of the system but misinterpreted 30o heading increment as being a 30o/ min rate of turn. As the 6-hourly checklists were being completed, the vessel was making moves and deploying references. Multiple operations were initiated just prior to watch handover which could have been delayed by a few more minutes.
Considerations
- Bridge resource management was not properly exercised. In principle, the second DPO should fill out the checklists and the DPO at the desk should concentrate on vessel position keeping only.
- The familiarisation process should be reviewed to be more robust to ensure new DPOs are completely familiar with the desk and functions.
- Reference should be made to, The training and experience of key DP Personnel (IMCA M117).
- It should be noted that a 30o per minute rate of turn was considered to be far too high whilst engaged in diving operations.
Latest DP incidents
-
Prepare for 2025 solar activity
This case study covers events that occurred on the same vessel, eight months apart.
DPE 02/24
29 July 2024
Undesired event
-
Know your vessel capabilities and when to stop!
An incident that occurred on an equipment class 2 MODU, during well intervention operations.
DPE 02/24
29 July 2024
Incident
-
Duty/not duty, which is the question?
With no steering control of the port azimuth thruster, and no other thrusters operational, the heading of the FPU could not be maintained.
DPE 02/24
29 July 2024
Undesired event
-
You’ve got the ASOG, so now you’ve got to follow it
This case study examines an incident that occurred on an equipment class 2 MODU, during well intervention operations.
DPE 02/24
29 July 2024
Incident
-
Button trouble
A Dynamically Positioned vessel experienced a loss of Dynamic Positioning (DP) control while installing cable within a wind farm.
DPE 01/24
3 April 2024
Incident
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.