Alerts iconROV incident

During routine maintenance on a Slingsby TA9 seven function manipulator jaw assembly, while removing the finger retaining bolts, a bolt with 80% of the thread exposed as it was being removed was explosively ejected. Fortunately, the bolt narrowly missed the technician’s face. The ROV vehicle had been working in a water depth of 110 metres … Continue reading “ROV incident”

Alerts iconFailure of transmission systems components on Aker 50-15 offshore cranes

Set out below is Safety Notice 2/97 issued by the UK Health and Safety Executive (HSE). It should be self explanatory. Failure of Transmission Systems Components on Aker 50-15 Offshore Cranes The Health and Safety Executive has been advised of failures which have occurred in mechanical components of the winch hoist transmission system on Aker … Continue reading “Failure of transmission systems components on Aker 50-15 offshore cranes”

Alerts iconElectrical integrity of an ROV

During a vessel ROV mobilisation in port, a subcontractor’s 3-phase hydraulic power unit was connected to the vessel’s power supply. The unit was energised without either inspecting the third party equipment wiring or carrying out earth and continuity checks. This resulted in the contractor’s supervisor receiving a potentially lethal electrical 220v shock. This incident highlights … Continue reading “Electrical integrity of an ROV”

Alerts iconAnchor handling incident

An incident occurred on a vessel which was conducting an anchor handling operation. A sudden tensioning and de-tensioning of the tugger wire occurred, probably due to the vessel rising or falling on the swell. The second mate, who had run towards the tugger wire, was hit by the tensioned wire, thrown into the air, landed … Continue reading “Anchor handling incident”

Alerts iconEntry procedures

On a semi-submersible drilling unit, the port-aft column was opened up to allow a team to gain entry for visual inspection of an instrument on the cross-tubular section. Access to this section was via one of the ballast tanks. Since the rig was under tow at the time and had become slightly out of trim, … Continue reading “Entry procedures”

Alerts iconContainer incidents

Three separate incidents have been reported involving container double and personnel doors. A control van personnel door fell off whilst someone was trying to open it; fortunately the individual jumped clear as the heavy door fell to the ground. The hinges of the door had been broken during sea transit in severe seas and the … Continue reading “Container incidents”

Alerts iconFire

A fire occurred when paint ignited in a bulk storage area on a vessel due to welding being carried out on the main deck. The firewatcher for the area had gone off for a break whilst the welder was on his break. Welding resumed without checking that the firewatcher was in place. The contractor involved … Continue reading “Fire”