Topic
Structural and Asset Integrity
Continued fitness of structures and assets to perform safely.
Newest 100 Documents
All 467 in search- 20261 Jul
Verify Riser Fin Retention Systems Before Prompts Riser-Handling Operations
Two thermoplastic fins detached during slick-riser handling, creating dropped-object near misses. Findings identified inadequate retention tension, omitted torque verification and 48-hour re-torque, deficient refurbishment and inconsistent checklists. BSEE recommends manufacturer-specified securing checks, design improvements, procedural discipline, vendor acceptance assurance and dropped-object risk assessment.
- 202614 May
MSF: Fast Rescue craft (FRC) washed overboard and lost at sea
An unexpected wave washed a vessel’s fast rescue craft overboard after driving it upwards against its davit. Worn, under-dimensioned lashings tore apart, and the hook arrangement suffered impact-related deformation. The flash describes subsequent recovery, enhanced securing inspections, possible additional heavy-weather lashings and planned replacement of lashing straps.
- 202628 Apr
Failure of moonpool railing system caused man overboard situation in moonpool
A degraded removable railing post failed when a crew member lost balance beside a moonpool. They caught a guidewire and were rescued with a boathook, sustaining a dislocated shoulder. The flash examines inspection omissions, unclear responsibilities and ineffective hazard follow-up, recommending secured barriers, preventive maintenance and pre-task assessment of barrier failure.
- 202615 Apr
BSEE: Exterior Walkway separates from temporary living quarters, putting workers at risk
An offshore accommodation walkway detached while three workers stood outside their room; all remained safe. Temporary quarters had served for 23 years, with inadequate inspections and degraded tab welds. The flash presents BSEE recommendations for operators to consider long-term design needs, revised inspection programmes and non-destructive weld testing.
- 202615 Apr
Death of seafarer due to fall from crane cabin
A seafarer cleaning a cargo crane cabin on an anchored vessel fell 12 m to the deck and died. The investigation identified probable window seal failure following removal of protective grating. Possible corrosion and glass weakening are discussed, alongside lessons on barrier integrity, structural inspection, routine-task risk assessment and warning signage.
- 202631 Mar
Ageing assets and life extension
Guidance on managing ageing assets and extending facility life through lifecycle planning, performance monitoring and integrity assurance. It presents a plan-do-check-act self-assessment framework, ageing modes analysis, competence arrangements and independent verification. Regulatory duties and health and safety representative involvement are discussed, alongside a Northern Endeavour corrosion example.
- 202631 Mar
Planning for proactive decommissioning
This information paper explains lifecycle planning for petroleum decommissioning, including progressive removal, permanent well abandonment and increasingly detailed permissioning submissions. It outlines regulatory expectations, alternative end states, long-lead procurement, continued maintenance and changing risk profiles, alongside environmental monitoring and completion reporting to demonstrate that obligations have been met.
- 202617 Mar
Failure of A-frame fold-down platform
A hinged A-frame platform failed during sheave-block load checks aboard a vessel alongside for mobilisation, leaving a crew member suspended in their harness with minor injuries. The flash identifies missing cotter pins, hinge design flaws and galvanic corrosion, alongside omitted change management, scheduled maintenance and platform inspections.
- 202613 Feb
Missing protection – progressive wear on hydraulic hoses causes damage
An inspection identified hydraulic and fuel hoses rubbing against surrounding surfaces and sharp edges, with abrasion and missing insulation. The flash discusses routing clearance, securing, protective sleeves and routine inspection to address progressive wear and potential leaks, fire and machinery failure. It also highlights unsecured deck plates.
- 20265 Feb
BSEE Safety Alert 513 - Exterior Walkway Separates from Temporary Living Quarters, Putting Workers at Risk
Three workers escaped harm when an offshore platform’s third-floor walkway detached from temporary living quarters used for 23 years. The alert examines inadequate welded support, corrosion, material fatigue and inspection weaknesses. BSEE recommends considering long-term use in design, revised inspection programmes and non-destructive testing alongside visual checks.
- 2026Feb
CHIRP Superyacht FEEDBACK 11 (February 2026)
Six superyacht reports examine an unpermitted hull repair, a close-quarters encounter, grounding on uncharted coral, fuel-handling failure, hazardous acetone use in a bilge sump and premature anchor release. Commentary addresses reporting culture, collision avoidance, passage planning, fuel purification, respiratory protection limitations and confined-space precautions, emphasising communication and challenges to unsafe decisions.
- 202629 Jan
Flooding and foundering of stern trawler Opportune (LK 209)
Investigation of Opportune’s foundering east of Lerwick following uncontrolled engine-room flooding. Seawater pipework failure was considered the most likely cause, but remained unconfirmed. The report examines pipework inspection, inaccessible sea inlet valves, lack of remote bilge-pump operation and flood preparedness. All eight crew were rescued uninjured from liferafts.
- 202615 Jan
Fatal injury to a deckhand following a chain failure on the scallop dredger Honeybourne III (PD905)
Investigation of a deckhand’s fatal injury aboard Honeybourne III after a quick-release chain failed and a towing block fell during fishing-gear retrieval. The report examines chain bending, wear, material properties, inspection competence and suspended-load exposure, supported by laboratory testing and finite element analysis. It records company actions and regulatory oversight deficiencies.
- 202518 Dec
Man overboard in port: Seaman falls from quay access ladder
A seaman climbing a damaged quay access ladder became distracted by moving mooring lines, lost balance and fell onto the gunwale before entering the water. Recovery was achieved without serious injury. The flash highlights continued use of defective access, concentration, stop-work intervention and consideration of quayside conditions in task planning.
- 2025Dec
Office PINC List
An office compliance checklist pairs regulatory questions with cited authorities and enforcement codes. It covers operational approvals, structural records, financial security, well-control competence, spill preparedness, drilling and decommissioning. Further checks address pipeline maintenance and reporting, reservoir conservation, production measurement, and geological and geophysical permits and data submissions.
- 20257 Nov
Hull crack arising from vibration
An aluminium vessel continued operating despite propeller vibration, later developing a skeg crack and water ingress into the steering room. Crew fitted a cement box, and management required repairs. The flash highlights aluminium’s susceptibility to repetitive stress and urges investigation of changed or increased vibration.
- 20252 Oct
Crane cab access platform collapsed
A vessel crane’s cab access platform collapsed as the operator climbed the ladder, causing a fall partially mitigated by its enclosure without injury. Hidden weld cracking and corrosion caused the failure. The flash questions inspection access, alternative testing and contractor oversight, and stresses surface preparation before repainting.
- 20252 Oct
Grounding and subsequent loss of the dive support vessel Jean Elaine
Investigation of Jean Elaine’s grounding and subsequent loss in Saint Peter’s Pool, Orkney, during scientific diving support. It examines inadequate passage planning, reliance on an unapproved tablet navigation application, ineffective coordination and unchecked certification. Poor hull condition likely contributed to failure after grounding; university and project procedures were subsequently revised.
- 20252 Oct
Positive: Worn mooring lines spotted and replaced before they parted
Hourly inspections aboard a vessel alongside during strong winds identified a mooring rope close to breaking. The crew replaced it and placed wooden boards beneath ropes rubbing against a bridge structure. The flash highlights vigilance during adverse weather and proposes jetty protection to reduce rope friction.
- 202524 Sep
Validation Guideline
Guidance explains NOPSEMA’s validation requirements for proposed facilities and significant changes. It addresses agreement of scope, selection of safety-critical technical systems, validator independence and competence, and written deliverables. Validation is linked to safety-case acceptance, distinguished from verification, and illustrated through diving-system and well-testing applications.
- 2025Aug
Thermal Expansion runs hot and cold! — Process Safety Beacon, August 2025
This bulletin explains how heating trapped liquids and freezing accumulated water can rupture process pipework. Two chemical-processing incidents illustrate releases, fires and injuries involving a burst strainer and cracked propane piping. It highlights pressure relief, established isolation and depressurisation procedures, accommodation of thermal movement and temperature-dependent freezeproofing.
- 202519 Jun
Fatal accident on the beam trawler Cornishman with loss of 1 life
Investigation material examines the fatal failure of Cornishman’s trawl quick-release chain, including corrosion, side loading and material properties. Technical annexes document magnetic particle inspection, metallography, hardness and break-load testing. Recommendations address inspection, fabrication quality and consideration of alternative release designs; an annex discusses the separate Honeybourne III accident.
- 20254 Jun
BSEE: Failure to identify and restrict access to faulty gratings
A worker installing a pump supported himself on nearby piping when corroded grating beneath scaffolding boards failed. Previously installed barricades had been removed to allow work. The flash highlights checks on surface integrity, protection of openings and clear expectations for rigid barricades restricting access to unsafe areas.
- 202516 May
Person injured when unsecured grating gave away
A worker securing sea-fastening lashings slipped through unfinished walkway grating beside a Multiple Reel Drive System, sustaining shoulder discomfort and leg abrasions. The hot-work subcontractor had been redirected before completing installation. Lessons address assessing risks from unfinished work, communicating its status, barricading access and checking worksite safety.
- 20253 Apr
Incidents occurring during decommissioning
This safety flash compiles decommissioning incidents involving offshore structures, lifting and diving work. Cases include falling loads, damaged rigging, structural collapse, chemical exposure and underwater burning. It summarises breaches of selected life-saving rules and records a riser recovery incident in which personnel remained clear of the lifting area and escaped injury.
- 20256 Mar
BSEE Safety Alert - 496 - Misidentification of Corrosion Hazard Results in High Potential Event
A worker installing a pump at a Gulf production facility supported himself on nearby piping when corroded grating gave way beneath scaffold boards. Previously installed barricades had been removed. The alert recommends facility walkthroughs, secure restriction of unsafe areas and review of safe work practices governing barricades.
- 20256 Feb
Safety warning issued following Egyptian liveaboard dive boat accidents in the Red Sea resulting in the loss of life
This MAIB bulletin examines three Egyptian liveaboard dive boat casualties in the Red Sea. It identifies inadequate stability, deficient lifesaving and fire protection arrangements, obstructed escape provisions and poor briefings and crew training. Customers are advised to use recognised vendors offering safety assurance and request thorough onboard briefings before departure.
- 2025
2 - Integrity management of FPSOs/FSUs
OMAR guidance addresses structural and maritime integrity of UKCS FPSOs and FSUs, drawing on regulatory interventions. It discusses inspection regimes, hull loading, watertight integrity, cargo systems and station keeping, alongside competence, independent verification and safety-case review. Ageing assets and formal life-extension assessments receive particular attention.
- 202417 Dec
Structural failure of rescue boat
An unattended rescue boat failed structurally on its davit, dropping its hull into the sea without injuries. Excessive manual cranking forces, shock absorber maintenance and pressure issues, unclear instructions and unsuitable stowage were identified. Actions included inspections, torque-controlled cranking, davit modification and improved equipment acceptance arrangements.
- 202412 Dec
Engine room fire on board ro-ro passenger ferry Stena Europe
Investigation of Stena Europe’s engine room fire while approaching Fishguard. Pressurised fuel escaped from a flange joint and ignited on exposed exhaust surfaces. The report examines recurring leaks, incomplete flange modifications, deficient insulation, maintenance and reporting weaknesses, firefighting response, and thermal imaging for detecting hazardous hot spots.
- 202411 Nov
BSEE: person fell through open hatch
A worker injured his leg and knee after falling through a hatch opening whose damaged cover had been removed. This flash summarises BSEE findings on situational awareness, fall protection and hazard communication, alongside measures operators and contractors should consider, where appropriate, including barricades, safety gates and spotters.
- 202424 Oct
AC vent unit cover dislodged and fell 1.7m
An air-conditioning vent cover detached from a capstan electrical cabinet on a pipelay tower and fell approximately 1.7 metres, without injury. Initial investigations identified galvanic corrosion of securing rivets. The flash calls for compatible fixings, checks of primary and secondary retention, and updates to dropped-object checklists and planned maintenance.
- 202414 Oct
Near Miss: Smoke and fire on Main Engine Exhaust
During sea trials after docking, smoke and fire emerged at an engine’s turbocharger flange. A damaged, incorrect gasket rated below 300°C had been fitted instead of one resistant above 500°C. The flash highlights spare-part specification checks and the visible wire mesh distinguishing gaskets designed for temperatures above 500°C.
- 202410 Oct
BSEE Safety Alert 490 - Helideck Condition Notifications and Verification
A helicopter pilot diverted after discovering that an offshore helideck’s capacity had been reduced from its published rating of 12,000 lbs to 6,000 lbs. The alert examines delayed notification and recommends considering verified capacity information, verbal checks before flight and landing, updated procedures, marking recognition training and prompt communication of changes.
- 202415 Aug
Flooding and partial sinking of an inflatable migrant boat with the loss of at least 8 lives
Investigation into an inflatable migrant boat’s flooding and partial sinking in the Dover Strait, with at least eight lives lost. It examines poor construction, floor failure of unknown initial cause, cold-water immersion, buoyancy aids and UK search and rescue operations, including weather-limited aerial surveillance and distress reporting.
- 202431 Jul
Side scuttle (porthole) knocked out by wave impact
A wave dislodged a cabin porthole on a platform supply vessel in heavy seas, propelling components across the cabin and admitting water. Metallurgical investigation attributed failure to poorly manufactured, overtightened screws. Actions included scuttle inspections and overhaul, revised deadlight procedures and signage discouraging overtightening.
- 202419 Jun
Safety Bulletin - Helideck Structural Integrity
This bulletin discusses corrosion-related impairment of offshore helidecks and the risks introduced by alternative personnel transfers. It highlights difficult access for inspection and repair, galvanic corrosion, protective coatings and maintenance regimes, alongside statutory duties to maintain structures throughout facility life, including infrastructure needed for future decommissioning.
- 202430 May
2024-01 64 Investigation of March 25, 2022, Hydraulic Workover Unit Failure Fatality
BSEE investigates a fatal hydraulic workover unit collapse at Main Pass Block 64 Platform #19. Severely corroded structural casing buckled after crane support was removed, and a worker tied to the unit was pulled into the water. Findings examine load assessment, Anchor Spool stabilisation, oversized equipment and unclear operator–contractor responsibilities.
- 202430 Apr
Near miss: dislodged grating with potential fall to sea
A vessel welder recovered without injury after GRP grating tipped and fell 5.5 m into the sea. Incorrectly secured clips, missing design clips and an unnoticed overhang were identified. The flash describes maintenance and checklist changes, future DROPS surveys, design guidance and approval requirements for grating modifications.
- 202419 Apr
Renewable Energy Modernization Rule
Unofficial prepublication final rule modernising US offshore renewable energy regulation. It addresses leasing, meteorological buoy approvals, deferred geotechnical investigations and financial assurance, alongside independent project verification, commissioning, inspections and safety management reporting. Agency responses explain adopted changes, rejected proposals and continuing environmental review obligations.
- 202416 Apr
Main bell wire rope failed destructive test
A diving support vessel’s main bell wire rope failed annual destructive testing after 245 bell runs. Investigation linked reduced load-bearing capacity to poor ductility from strain ageing and identified procurement outside company integrity arrangements. The flash calls for compliance with wire rope integrity requirements and oversight of chartered third-party vessels.
- 202419 Mar
High potential: sea water inlet pipe leakage in engine room
A vessel crew discovered seawater leakage from corroded air-conditioning condenser pipework near the hull while offshore. A cement box contained the leak before emergency dry-docking for repairs. The flash identifies missing documented condition checks and recommends regular inspection of ship-side valves and piping within planned maintenance.
- 202414 Feb
BSEE Safety Alert 481 - Hazardous Helideck Conditions Results in Near Miss Incident
An offshore helideck near miss involved unsecured safety skirting moving in helicopter rotor downwash after landing clearance. BSEE recommends that operators and contractors consider checks before clearance, coordination of simultaneous operations, facility-specific procedures and briefings, alongside notifications and visible markings for out-of-service helidecks.
- 202412 Feb
Failure of self-righting frame on Fast Rescue Craft (FRC)
A fast rescue craft lost its self-righting frame during a rescue drill while travelling at approximately 15 knots. Securing arrangements showed stress and galvanic corrosion despite a recent visual inspection. The flash highlights periodic integrity inspections, potentially involving frame removal, and records recovery communication and repairs to manufacturer specifications.
- 202422 Jan
Day Signal mast broke off and fell to deck
A vessel’s aluminium Day Signal mast broke off during deteriorating weather, with a 35 kg part falling 16 m to the main deck. Nobody was harmed; deck access had been restricted. Actions included additional securing wiring, dropped-object survey inclusion, and review of deck-closure procedures and mast inspection arrangements.
- 202313 Nov
High potential near miss: Crane part fell to deck
A vessel-transit near miss involved a 3.6 kg crane limit switch falling 6.5 m onto the deck without injury. The flash discusses inadequate plate design, unbalanced forces and deficient maintenance arrangements. Actions address redesign and more frequent inspection, while lessons highlight access difficulties and potentially misleading functional test results.
- 20232 Nov
Lifeboat davit failure on polar research vessel RRS Sir David Attenborough
Investigates a lifeboat launch accident aboard RRS Sir David Attenborough that caused minor injuries to three crew. The report examines an interlock that failed to reset, likely corrosion-induced piston-rod seizure, omitted checks and maintenance, incomplete davit installation, and shortcomings in operating procedures and crew familiarisation.
- 202326 Oct
Safety Alert 471 - Pipe Bond Failure on Firefighting System Investigated and Repaired
A firewater pipe separated from its flange, displacing another pipe and prompting a production halt. The affected main was isolated and repaired before production resumed. Bond failure was identified as a potential cause. BSEE recommends considering maintenance review, personnel competence measures, connection testing where possible and leak checks during routine system tests.
- 20233 Oct
Unsafe flooring led to man overboard fatality
This flash describes a January 2023 fatality on a jack-up rig in transit, where a missing crew member was understood to have fallen through an opening left by dislodged polymer grating. It calls for checking fastener installation against manufacturer instructions, including loose grating in dropped-object checklists and updating planned maintenance as required.
- 2023Oct
Radiograph duplication and falsification
This safety alert examines falsified weld radiographs, including duplicated boiler weld images and cropped tank negatives concealing defects. It explains how post-exposure identification and film double loading can enable substitution, and addresses competence, ethical obligations and procedural controls needed to assure non-destructive testing and structural integrity.
- 202328 Sep
Safety Alert - Pipeline Loss of Containment
A gas export pipeline tie-in spool flange failed after severe corrosion of carbon steel lacking the specified corrosion-resistant cladding. The alert examines material traceability and quality-control failures, misinterpreted inline inspection data and incorrect defect location reporting. Lessons address preserved identification, consideration of positive material identification and diverse integrity inspection measures.
- 2023Sep
Manage risk of damage to grating systems (walkways and deck areas) on offshore installations during rig moves
This alert addresses damage or displacement of offshore walkway and deck gratings during rig moves, including adverse weather and wave impact. It calls for assessment across operating modes, regular inspection and maintenance, competent personnel, fatigue controls and emergency arrangements for missing persons or people overboard.
- 2023Sep
Motorsport/Leisure Track Safety: trackside vehicle restraint barriers
Safety notice for motorsport and leisure track dutyholders distinguishes vehicle restraint barriers from generic segregation products. It addresses suitability for intended uses, installation, maintenance and lifecycle requirements, supporting documentation and consultation with manufacturers or suppliers. It also states the initial enforcement expectation where inappropriate or unsuitably installed barriers are used.
- 202315 Aug
CHIRP: Crew vigilance prevents mooring incident
A CHIRP event describes abrasion between mooring lines on a bulk carrier moving alongside a wharf in swell. Crew monitoring identified damage, and communication supported replacement and re-routing before the lines parted. The flash highlights teamwork and the importance of mooring fitting design and directional leads in limiting abrasion.
- 202314 Aug
MODU mooring systems in cyclonic conditions information paper
This information paper examines cyclonic mooring risks for mobile offshore drilling units. It discusses site-specific design return periods, met-ocean and seabed inputs, component degradation, installation assurance and change management. Operational guidance covers line-tension management, inspection performance standards, emergency preparedness and consideration of position monitoring during cyclone evacuation.
- 202321 Jun
Davit hook failures
Two vessel incidents involved failed davit hooks: a workboat dropped into the sea without injuries, while a life raft hook retained its position despite a sheared screw. The workboat failure remained under investigation. Actions included suspending non-emergency operations, inspecting dismantled hook components and reviewing maintenance and annual inspection arrangements.
- 202321 Jun
Lifting chains parted – hydrogen embrittlement
Three lifting chains failed during a vessel demobilisation lift, leaving grillage suspended approximately 4 m above deck. It was lowered without injury. Analysis attributed failure to hydrogen embrittlement and corrosion cracking under tensile load. Replacement of the four-way bridle with slings and shackles enabled safe completion.
- 20234 May
Deck grating dislodged under wave action and forced up the side of the hull
During a jackup rig’s wet tow, waves driven up the hull dislodged deck grating immediately outside a living-quarters exit. The grating formed part of a platform directly over water, more than 20 ft above the rig’s floating draft. Recorded significant wave height was 8–10 ft.
- 202324 Apr
Bio Lab Conyers Chemical Release
Investigation of Hurricane Laura damage, chemical decomposition, chlorine release and fire at Bio-Lab’s Louisiana facility. It examines hurricane preparedness, process hazard analysis, structural damage, fire-water reliability and regulatory coverage of reactive chemicals. Appendices analyse separate Conyers decomposition events and provide structural and fire-protection consultant reviews.
- 202324 Apr
Bio-Lab Lake Charles Chemical Fire and Release
Investigation of hurricane-related chemical decomposition, fire and chlorine release at Bio-Lab’s Louisiana manufacturing facility. It examines building resilience, process hazard analysis follow-through, deficient fire protection and emergency equipment readiness, alongside gaps in reactive-hazard regulation. Appendices include structural and fire-code assessments and separate Conyers decomposition incidents.
- 202323 Mar
Safety warning issued about the hazards of flexible hose installations
MAIB examines a Finnmaster engine-room fire caused by a flexible fuel hose overheating after an exhaust leak, releasing marine gas oil onto a hot surface. The bulletin discusses hose length, routing, inspection difficulties and unapproved alarm-system modifications, highlighting modification risk assessment, classification requirements and isolation valves.
- 20237 Mar
Investigation of Subsea Leak Identifies the Use of Materials Susceptible to Hydrogen Embrittlement (update)
A subsea jumper leak released approximately 479 barrels of oil into the Gulf of Mexico. Investigation attributed fractured Inconel 718 flange studs to hydrogen embrittlement and identified procurement, quality assurance and change-management gaps. The alert recommends operators consider metallurgical evaluation, fastener torque documentation and improved subsea leak alarm monitoring.
- 2023Mar
Unsafe use of floor grating systems in oil and gas, and wind generation
HSE warns that polymer floor gratings on offshore platforms, vessels and wind installations can dislodge, creating trip hazards and openings through which people may fall. Investigations identified fastener installation or positioning inconsistent with manufacturer guidance or good practice. Employers should identify grating areas and prioritise reviews of safety-critical locations, including escape routes.
- 2023
CHIRP Superyacht FEEDBACK 4 (Autumn 2023)
This superyacht digest analyses an allergic reaction, faulty gangway installation, a dive-vessel capsize, berth-departure contact, mooring injuries and grounding followed by dismissal of a reporting watchkeeper. Commentary examines equipment certification, stability testing, medical preparedness, line-handling teamwork, passage planning and constructive challenges to unsafe decisions.
- 2023
Ren Split Rule 2023
Unofficial pre-publication text of a joint final rule transferring offshore renewable-energy safety, environmental oversight and enforcement regulations from BOEM to BSEE without changing substantive requirements. It sets out revised regulatory parts, agency responsibilities, facility verification, inspections, environmental reviews, reporting and decommissioning provisions, including alternate uses of existing facilities.
- 2023
Standards for offshore helicopter landing areas (Version 9.1, 7 January 2026; publisher status Current)
Sets criteria for offshore helicopter landing areas on installations and vessels, alongside wind-turbine winching arrangements. Covers structural loading, obstacle protection, surface friction testing, lighting, motion monitoring, meteorological reporting, rescue and fire-fighting, fuel-system design and maintenance, and passenger preparation. The January 2026 amendment introduces arrangements for temporary safety-critical equipment unserviceability.
- 202229 Dec
Husky Energy Superior Refinery Explosion and Fire
Investigation of the Superior refinery explosion during fluid catalytic cracking shutdown. It examines air entering hydrocarbon equipment, missing steam-barrier and purge safeguards, eroded slide valves, procedural and training deficiencies, and brittle vessel fragmentation. Debris punctured an asphalt tank, escalating the event into fire; recommendations address transient-operation safeguards and emergency preparedness.
- 202223 Nov
MAIB: Flooding and sinking of the survey workboat Bella
This safety flash summarises MAIB findings on Bella’s sinking during hydrographic surveying near Lynmouth. Survey equipment modifications reduced forward freeboard, while inadequate buoyancy allowed swamping to overwhelm the boat. It highlights certification and safety-management shortcomings, alongside the crew’s successful abandonment using personal flotation devices and a life raft.
- 202216 Nov
Semi-submersible MODU Total Failure During Severe Weather Event
During severe weather on a semi-submersible MODU, an anchor winch chain lifter fractured under chain tension, releasing the anchor and tail chains to the seabed. Metallurgical analysis found a manufacturing cavity extending over approximately one-third of the cross-sectional circumference, reducing wall thickness to around half that of the unaffected portion.
- 202210 Nov
BSEE: Hazards associated with cranes on idle facilities
This flash summarises BSEE observations of deteriorated cranes on idle Gulf of Mexico facilities. Corroded cables, degraded slings and leaking reservoirs present dropped-object and pollution hazards. Recommendations address removing or temporarily securing blocks and balls, inspecting cranes before return to service, storing or discarding slings, and clearing reservoirs and hoses.
- 202210 Nov
USCG: Hidden corrosion on deck fittings can cause dangerous failures
This flash describes corroded D-ring securing straps failing during hatch-cover positioning aboard a vessel, with sling snap-back causing a severe head injury. It highlights missing testing and replacement records, concealed corrosion and ageing fittings. USCG recommendations address high-risk lifting-point identification, inspection, possible gauging or testing, safe lifting limits and scheduled maintenance.
- 20222 Sep
Flooding and sinking of survey workboat Bella
Investigation into Bella’s flooding and sinking during hydrographic surveying near Lynmouth. Survey equipment modifications reduced forward freeboard, while inadequate buoyancy and non-watertight openings allowed progressive flooding. The report examines deficient commercial certification and safety management, records the crew’s safe abandonment and rescue, and recommends improved certification guidance and vessel safety management.
- 202210 Aug
Hazards Associated with Cranes on Idle Facilities Pose Safety and Environmental Risks
BSEE reports deteriorated crane cables, missing components and pollution hazards on idle Gulf of Mexico facilities. Corroded cables and weather-exposed slings create dropped-object risks. Operators are advised to consider removing or securing blocks and balls, inspecting cranes before returning them to service, and clearing diesel and hydraulic reservoirs and hoses.
- 202222 Jul
Damage to flexible riser
A water injection riser suffered outer-coating damage against a sharp moonpool flare during installation through a vessel’s tilted lay system. The flash identifies missed design hazards, inadequate risk controls and failure to transfer earlier lessons. Recommendations address lifecycle learning, sharp-edge mitigation and vessel-team review of project-supplied equipment.
- 20224 Jul
American P&I Club: Extreme bollard pull
A container vessel’s four bow lines overloaded a single dock bollard through their self-tensioning winches after crane obstruction prompted a departure from normal mooring practice. The bollard failed, but spring lines limited vessel movement and nobody was injured. The flash highlights bollard capacity checks and assessment of changed mooring arrangements.
- 202220 Jun
NTSB: watertight doors – vessel sank after flooding
This safety flash summarises NTSB findings on a towing vessel that flooded and sank. Unsecured or open aft deck hatches were the probable cause, with progressive flooding through bulkhead openings. Ineffective hull inspection and maintenance contributed. Lessons emphasise regular hull oversight, watertight integrity and permanent corrosion repairs.
- 202225 Apr
Toppled Hydraulic Workover Unit Results in Fatality
This preliminary alert describes a fatal hydraulic workover unit toppling on a Gulf of Mexico caisson. An elevated, harnessed contractor fell into the water with part of the unit. Initial observations identified a casing break; causes remained under investigation. Recommendations address structural capacity, support arrangements, fall protection design, supervision and task planning.
- 20228 Apr
UK HSE: worker died following fall from crane platform
An electrician repairing gantry-crane wiring died after a walkway access panel failed beneath him. This safety flash summarises HSE findings on neglected panel maintenance, previous weld repair and the absence of evidence that the panel had been safely replaced and secured. It highlights risks from unsecured access panels.
- 20221 Apr
Mooring near miss: Guide roller pin suffered material failure
A vessel’s deck stand guide roller pin failed during mooring and struck a heater, without injury. Investigation identified degradation, inadequate inspection and a complicated line arrangement that increased axial forces and overloaded structures. Lessons address suitable mooring arrangements, avoiding multiple turns, toolbox discussions and three-yearly roller dismantling and overhaul.
- 20221 Apr
UK HSE: worker falls from height during oil platform decommissioning
An IMCA safety flash describes a worker’s 15-metre fall during dismantling of the Brent Bravo platform. Corroded attachment bolts and an unrecognised separate platform affected structural integrity. The HSE investigation identified a missing full structural appraisal before demolition, with implications for risk assessment and the cutting method.
- 202211 Mar
Fatal fall from collapsing scaffolding on a merchant vessel
A sailor died after scaffolding and a crane maintenance platform collapsed aboard a merchant vessel. Seriously corroded securing bolts failed under load, while his harness lanyard snapped. The flash identifies shortcomings in risk assessment, supervision, scaffold configuration, work instructions, harness maintenance and training.
- 202211 Mar
Get it fixed!! Deteriorated seals on emergency hatch
A vessel inspection during five-yearly docking identified deteriorated hatch seals, presenting a potential risk of seawater leakage into the engine room. Crew had previously recognised the condition and received replacement seals but deferred fitting them until docking. The flash highlights poor risk perception and urges timely action on identified defects.
- 202210 Mar
BSEE Identifies Maintenance and Certification Issues of Rental Generators
BSEE reviews rental generator incidents during start-up and commissioning on the US Outer Continental Shelf in 2021. Failures involved fires, arc flashes and work stoppages. The alert discusses degraded windings, moisture ingress and corrosion, and recommends operators consider certification checks, commissioning assurance, insulation resistance testing and personnel competence measures.
- 20229 Feb
Flooding, capsize and sinking of prawn trawler Diamond D
Investigation of Diamond D’s flooding, capsize and sinking near Tynemouth on 16 August 2020. Hull damage from trawl doors was considered almost certain. The report examines crossed towing wires, reduced manning, unnoticed bilge alarms, pumping limitations and absent watertight subdivision, alongside liferaft abandonment and the successful rescue of both crew.
- 202220 Jan
Three bolts sheared on a lifting trunnion
Following offshore renewables transition-piece installation, a 44 kg lifting-trunnion cover plate fell approximately 0.5 m when three securing screws sheared. The flash identifies an incorrect assumption about sideways loading in screw verification, records work-planning safeguards used, and calls for welding cover plates to the trunnions.
- 202210 Jan
Hazards When Replacing Grating
This alert describes fatal, man-overboard and near-miss incidents involving compromised grating. It explains how ripping, needle or chisel gunning and removal of anchor welds can reduce load capacity. BSEE recommends considering personnel training, staged replacement procedures and preventative maintenance, stressing that visual judgement cannot establish deteriorated grating’s integrity.
- 20219 Dec
Importance of safety by design: Acoustic beacon damage in splash zone
During tugger winch recovery, normal headache ball movement through the splash zone led to contact with a vessel fender and damage to an acoustic beacon. The flash identifies inadequate A-frame reach and a known design hazard, describing protective cage provision, design reviews and implemented modifications to increase clearance from the hull.
- 202128 Oct
USCG: Corrosion causing structural failure on accommodation ladders
This flash summarises a USCG alert about corrosion of accommodation ladder turntable pins. A pin failed during ladder stowage, causing a crew member to fall approximately 30 feet and suffer serious injuries. The Coast Guard strongly recommends pin maintenance, periodic inspection, replacement when necessary and inclusion in ladder maintenance plans.
- 20211 Oct
Serious incident: topsides started swinging during lifting
A topsides became unstable and lifted prematurely while connected to pre-tensioned rigging, with personnel on the substructure and crane vessel. The flash identifies incomplete assessment of pre-tension, crane-tip movements and post-cut stability, and stresses expert verification and consideration of monopod stability sensitivity in future work.
- 202111 Aug
BSEE Inspector Nearly Falls Through Unsecure Grating
A BSEE inspector fell to knee level through loose well-access grating, sustaining minor abrasions. Engineering review identified unsuitable construction, loosened connections and inadequate structural loading analysis. The alert recommends that operators and contractors consider barricading unsafe areas, removing specified angle-iron platforms and ensuring professionally engineered access structures.
- 202111 Aug
US Coast Guard: Wire rope terminations
This flash summarises a US Coast Guard alert following a wire rope termination failure that damaged equipment. It discusses improper swaging, material selection and termination effects on safe working load. Recommendations cover visual examination, dimensional checks, manufacturing documentation and competent inspection before use, with attention to incorrect crimping dies.
- 20216 Aug
Sinking of the wooden hulled motorboat Globetrotter with loss of 1 life
Investigation of Globetrotter’s foundering off Fleetwood during a recreational angling trip, with one drowning after anchor-rope entanglement. The report examines poor wooden-hull condition, probable grounding damage, inadequate passage planning and emergency preparedness. It discusses bilge pumping, flotation devices, liferaft provision and rescue difficulties; the exact source of water ingress remained unestablished.
- 202122 Jul
HSE: Catastrophic failure of marine loading arm
This flash summarises an HSE alert about a marine loading arm collapsing during positioning for connection to a ship. Bearing corrosion and inadequate inspection and maintenance were identified, with inaccessible servicing points left unlubricated. It outlines a structured programme for reviewing maintenance needs, inspecting structural components and verifying completed work.
- 202121 Jun
Complying with your decommissioning obligations
This brochure explains NOPSEMA’s expectations for decommissioning offshore oil and gas assets in Australia. It outlines tiered regulatory oversight, enforceable directions and planning throughout project life. It also discusses maintaining unused property, timely well abandonment and infrastructure removal, and conditions for considering alternatives to full removal.
- 202116 Jun
Lifting frame detached from fast rescue craft (FRC)
A fast rescue craft’s lifting frame detached during recovery alongside a vessel, pulling a crew member upwards before they fell back into the boat with minor injuries. Investigation found cracks, delamination and potential anchoring weaknesses. The flash highlights inspection difficulties within the hull and suggests attention to crack detection in planned maintenance.
- 20219 Jun
MSF: Tank corrosion
A vessel’s routine tank sounding revealed rising liquid levels and a pinhole leak admitting salt water. Investigation found coating damage from the sounding weight and incorrectly discarded corrosive chemicals had degraded the striking plate and underlying steelwork. Repairs followed, with crew reminded about chemical handling, safety data sheets and authorised hazardous-waste disposal.
- 2021May
Catastrophic failure of marine loading arm
This safety alert describes a marine loading arm collapse following failure of a pantograph pivot pin. Inaccessible servicing points contributed to missed lubrication and corrosion. It calls for structured inspection and maintenance planning, prompt checks of structural components, verification of completed work and periodic review of maintenance arrangements.
- 202130 Apr
Uncontrolled release of Hydraulic Gooseneck Ring
During BOP retrieval through the splash zone, reduced resistance and rig movement produced a pendulum effect. The riser struck the stored gooseneck ring, which fell onto the flex joint. The BOP was then raised and secured; damage to the storage dogs and their locking mechanism caused downtime.
- 202116 Apr
BSEE: Crewman fell to his death through faulty grating
This safety flash summarises BSEE findings on a fatal platform fall in the Gulf of Mexico in 2019. A production operator fell through corroded grating into the sea. It highlights deficient walking surfaces, hazard communication and barricading, alongside failures in operator–contractor safety-management bridging arrangements.
- 20218 Apr
Flooding and sinking of trawler Ocean Quest
Investigation of Ocean Quest’s loss following uncontrolled engine-room flooding. The source remained undetermined, but shell plating or weld failure beneath the main engine was considered almost certain. Analysis examines hull survey limitations, reduced bilge-pump effectiveness with partly open sea suctions, unusable borrowed pumps and successful crew abandonment following regular drills.