Maintenance during DP operations leads to an undesired event
- DP Event
- Published on 13 June 2019
- Generated on 13 December 2024
- DPE 02/19
- 1 minute read
Undesired event
Jump to:
The duty Engineer did not inform Bridge/DPOs of maintenance on the header tank of the stern thruster.
Comments
The oil level gauge was not reading the actual level. The duty Engineer did not inform Bridge/DPO`s of maintenance on the header tank of stern thruster.
Future instruction was that the engine room would inform the bridge of scope of work of any maintenance to be carried out whilst the vessel was on DP operations.
Considerations
- IMCA stresses the importance of sound operational activity planning, full understanding by all key DP personnel of the activity specific operating guidelines (ASOG) would have assisted in managing the operation.
- DP operations encompass the whole vessel and all personnel need to be trained as part of a team.
- Standing orders should stress that no maintenance is undertaken during DP operations.
- In exceptional circumstances and following a capability analysis maintenance could be considered. However, a permit to work (PTW) system should be used that involves and informs all departments.
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.