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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 event trees 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.

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

Reza Yaghoobi
Technical Adviser - Marine
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Loss of gyro input causes loss of position

Case narrative: A DP 2 vessel was involved in ROV operations in deep water with good visibility.  The environmental conditions were moderate with a wind speed of 15 Knots and […]

| Included in IMCA DP Event Bulletin 03/20

Lack of operational planning leads to DP incident

Comments from the report: It was concluded that the loss of both DGNSS were due to huge superstructure of the installation interfering with satellite signals.  This phenomenon is called reflection […]

| Included in IMCA DP Event Bulletin 03/20

DP incident caused by human factor

Comments from the report: It is mentioned in the report that DG#4 tripped out for unknown reasons.  Elsewhere in the report the cause of this incident is mentioned as complacency […]

| Included in IMCA DP Event Bulletin 03/20

DP emergency drill scenario

DP emergency drill scenarios are included to assist crew members conduct DP drills on-board. The intent is that the template can be used on any DP vessel so specific details […]

| Included in IMCA DP Event Bulletin 02/20

DP2 semi-submersible MODU DP incident

Case narrative: A DP2 Semi-submersible mobile offshore drilling unit (MODU) was working in field preparing for drilling operations on location. The environmental conditions at the time were benign. Cargo operations […]

| Included in IMCA DP Event Bulletin 02/20

DP incident with assisted mooring

Comments from the report: During cargo operations in DP assisted mooring, due to undefined information being fed to the DP system, the pitch on the port propeller increased to maximum. […]

| Included in IMCA DP Event Bulletin 02/20

DP incident caused by software glitch

Comments from the report: The two meters move command was given in two one-meter steps to the DP system by the operator with a time lapse of a few seconds. […]

| Included in IMCA DP Event Bulletin 02/20


Unreliable component causes a DP undesired event

Comments from the report: Investigation found that a 24v bridge rectifier supplying voltage to the main generator switchboard breakers 1 and 2 had burned out.  The age and quality of […]

| Included in IMCA DP Event Bulletin 01/20

Change of heading leads to DP incident

Comments from the report: The vessel had been on DP for the whole day and in order to lift the ROV on deck with the crane, vessel heading had to […]

| Included in IMCA DP Event Bulletin 01/20

DP undesired event due to online maintenance work

Comments from the report: The vessel reported that they had changed these modules in the past whilst on DP without any issues.  The risk assessment had identified that the consequence […]

| Included in IMCA DP Event Bulletin 01/20


Pipe leak leads to loss of all thrusters – DP incident

Comments from the report Whilst pressurising the fire main for helicopter operations, a gasket failure occurred on the pipework valve under the engine room floor in front of transformers 690V/440V […]

| Included in IMCA DP Event Bulletin 04/19





Accidental breaker trip – DP undesired event

Comments from the Report: The vessel was experiencing heavy rolling and pitching.  The watch keeping engineer lost his balance and his hand made contact with the No. 2 shaft generator […]

| Included in IMCA DP Event Bulletin 03/19

Failure of DP UPS – DP undesired event

Comments from the Report: The vessel maintained position but DP equipment class 2 capabilities were compromised.  It was noticed that there was a strong burning smell from the UPS.  The […]

| Included in IMCA DP Event Bulletin 03/19


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