Alerts iconUse of a diffuser

A diver has been found to be suffering from tinnitus and ear pain. It is thought that this has been caused by using the bell emergency blow down with no diffuser in place. The contractor has issued the following instruction to its personnel: A diffuser should be installed on all pressurisation lines regardless of whether … Continue reading “Use of a diffuser”

Alerts iconCrane incident

A serious incident occurred on a fixed installation while dismantling a Unit – Mariner 3600 portable crane. Three people were seriously injured and a fourth was lost overboard and did not survive. The boom and gantry had been removed from the crane. Workers were preparing the power module section of the crane for removal after … Continue reading “Crane incident”

Alerts iconFPSO experienced loss of stability while discharging cargo

During a cargo transfer to a shuttle tanker, an FPSO suffered a loss of stability such that the vessel’s metacentric height was reduced well below that required by the installation’s classification society approved loading manual. This was due to excessive free surface effect. The main cause of the incident was found to have been caused … Continue reading “FPSO experienced loss of stability while discharging cargo”

Alerts iconCrane wire failure

A member has alerted IMCA of a failure of a crane wire during the recovery of an ROV. As the ROV was being swung inboard by the ROV system, the crane wire snapped just as the ROV was above the platform rail causing the ROV to hit the rail and fall inboard on its side. … Continue reading “Crane wire failure”