A semisubmersible DP drilling rig lost control of position for several minutes. During this time it was obliged to shear the drill pipe and disengage the lower marine riser package, LMRP. Operators of dynamically positioned vessels and offshore installations should review the ergonomic aspects of their control system.
This Alert is to remind duty holders of the requirement to have measures in place to verify the correct operation and the correct settings of all safety systems and limits on offshore cranes.
Safety notice – Use of barrier glands in potentially explosive atmospheres to meet IEC 60079-14:2013 (edition 5)
The current International Standard allows the use of a ‘standard’ Ex certified flameproof gland as opposed to a Ex certified ‘barrier gland’ without the requirement to apply the previous flowchart used in the British Standard. There is evidence this approach creates a fire and explosion risk. This notice provides information on what action to take.