During testing and operation of a bell blow down valve, a sintered bronze silencer/diffuser blew apart. Due to extensive fragmentation of the diffuser it has been impossible to determine the […]
IMCA safety flashes disseminate important information on incidents and potential hazards and the lessons learnt from them that can help prevent incidents occurring elsewhere in the industry.
Individual safety events are available individually online, tagged and searchable, while the traditional PDF collections are also available for download.
All members are encouraged to contribute relevant safety-related information – please visit our Safety Flash Reporting page for details on the submission process.
Nicholas Hough
Consultant - Safety and Security
Contact
During testing and operation of a bell blow down valve, a sintered bronze silencer/diffuser blew apart. Due to extensive fragmentation of the diffuser it has been impossible to determine the […]
During well decommissioning, problems were experienced when attempting to open two annulus swab valves on subsea trees. Several attempts were made to open the valves using diver intervention. Onshore inspection […]
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 […]
A contractor member has reported that they have experienced a number of potentially serious incidents involving electric shocks to personnel working on what was thought to be isolated electrical machinery […]
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 […]
A recent incident has been reported to IMCA. The 350T/96m long boom of a derrick lay barge (DLB) 2500 short tonne revolving crane broke, crashed onto the deck, fell into […]
An incident occurred during the loading of a plate girder (weight approximately 12 tonnes) onto a cargo barge. As the girder was being lowered two out of the four certified […]
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 […]
A contractor member has reported several near misses/incidents due to the positioning of quads, resulting in damage to regulator boxes and pillar valves. In order to address these incidents, the […]
An incident occurred on a DSV where a diver’s air supply became contaminated with fumes from an overheated electrical compound. This caused the diver to fall unconscious in the water. […]
An incident occurred during a cable laying operation, while in the process of slipping the final splice in 4,900 metres of water. As the cable end came off the top […]
A member has alerted IMCA to a fatal accident on a Drilling Rig. The accident involved an individual who was assisting to move a ROV hydraulic power pack, weighing 6,000 […]
When wiring up the trailing lead of a piece of ROV equipment to a junction box on the ship’s electrical supply, an electrician incorrectly identified the trailing lead wires and […]
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 […]
Recently a serious accident occurred at a contractor’s facility when the drive chain of a crawler crane failed, causing parts to fly about injuring an employee. The American Skyhorse Crane […]
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 […]
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 […]
A technician was knocked unconscious when he was struck on the head by a cable. The incident occurred when cable being used to pull the beginning of a 23″ pipeline […]
Set out below is a safety notice issued at the end of 1997 by UWI Circle Ltd of Aberdeen, UK. It should be self explanatory, but if you have any […]
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 […]
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