Safety Alert
Warning to offshore industry on blocking of data communications in dynamic positioning systems
Warning to offshore industry on blocking of data communications in dynamic positioning systems
- HSE
- Safety Alert
- OSD1-2013
- Control of WorkMarine OperationsVessel and Mooring
- Loss of station keeping
- Diving operationsDynamic positioning
- Safety-case assurance
- Marine industryUpstream oil and gas
- SubseaVessel
Summary
This alert examines shared-network vulnerabilities in dynamic positioning systems after a diving support vessel drifted off position with divers subsea. A single fault was identified as a probable cause of blocked communications. Duty holders and suppliers should investigate communications architecture and ensure appropriate protection where functions depend on shared media.
Classifications: Loss of station keeping; drive-off; drift-off.
Classifications: Diving operations; diving; commercial diving.
Classifications: Dynamic positioning; DP; DP operations.
Classifications: Safety-case assurance.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Subsea; underwater worksite.
Classifications: Vessel; aboard ship; onboard vessel.
OSD1-2013. Themes: control of work, marine operations, vessel and mooring.