Two divers, when disconnecting a flange on a pipeline, encountered what appeared to be water escaping from the flange. The fluid was subsequently found to contain toxic volatile condensate compounds. When the first diver returned to the diving bell, the liquid on his suit/umbilical contaminated the atmosphere of the bell, to a point where he … Continue reading “Contamination of divers by unknown liquid”
A third party fitted the wrong regulator on a Nitrox cylinder despite the fact that the quad was fitted with plastic shields marked ‘Diving Gas’. The regulator was of a type used for inert gas flushing or pressure testing. Had the wrong regulator been attached to a 45/55 mix the consequences could have been severe. … Continue reading “Nitrox misuse”
An IMCA Member reported that during mobilisation a hydraulic jack dropped onto the main deck while work was being carried out on the straightener in the crane tower. The Contractor involved elected to tape off the area under the crane tower to prevent C1 personnel walking under the tower during operations.
We have been advised of a recent accident when a ROV Technician working on a Tether Management System lost some fingers in a chain drive mechanism. The company subsequently designed extra guards and is in the process of a retrofit programme. A large mesh screen (as supplied by the manufacturer) had been removed to facilitate … Continue reading “The guarding of moving parts in an ROV”