Power distribution
- DP Event
- Published on 12 May 2016
- Generated on 15 September 2026
- DPE 01/16
- 1 minute read
Undesired event
With only two diesel generators online, the DPO must be fully aware of the consequences of a worst case failure (WCF).
Considerations
- With only two diesel generators online, the DPO must be fully aware of the consequences of a worst case failure (WCF).
Latest DP incidents
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Holding position, losing references
While approaching a turret-moored, weather-vaning offshore installation (FPSO), in preparation for cargo operations, a DP equipment class 2 vessel experienced significant rolling of up to 15–20° due to a long-period swell close to the vessel’s natural roll period, resulting in a resonance effect
DPE 02/26
1 September 2026
Observation
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Know your equipment, or at least where to find the answers
During an update in the Follow Target Mode, the crew noticed an anomaly with joystick control.
DPE 02/26
1 September 2026
Observation
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A chain of small failures leads to a major consequence
While conducting cargo operations on DP a vessel experienced a partial blackout caused by an unexpected shutdown of generator 3
DPE 02/26
1 September 2026
Incident
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New equipment, unexpected consequences
During the operation, a loss of DGNSS correction signals was experienced across multiple vessel DGNSS units.
DPE 02/26
1 September 2026
Incident
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DP drill scenario – Loss of seawater cooling pump redundancy
Exercise scenario – Loss of seawater cooling pump redundancy
DPE 02/26
1 September 2026
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.
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