Activity
Marine Operations
Operational activities involving vessels and marine interfaces.
Newest 100 Documents
All 238 in search- 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.
- 20266 May
Catastrophic engine failure and subsequent fire on board the site investigation vessel Kommandor Susan
Investigates a diesel generator failure and engine-room fire aboard Kommandor Susan during sea trials in the Firth of Forth. The report links premature bearing wear to substitute components and inappropriate extended service intervals, examines contractor oversight, and describes successful firefighting alongside emergency anchoring difficulties caused by dependence on electrical power.
- 202615 Apr
Unauthorised boarding and theft from vessel at anchor
This safety flash describes theft from crew cabins after unauthorised night-time boarding of an anchored vessel. It identifies inadequate vigilance, unsecured accommodation access and insufficient deck monitoring. Lessons address watchkeeping, locked non-emergency doors, security rounds, Ship Security Plan compliance, crew briefings and security drills.
- 202617 Mar
MSF: Unsecured bulk hose near miss
An unsecured bulk hose slipped off a platform supply vessel’s deck during transfer in challenging weather, narrowly missing a crew member. The flash identifies communication problems, insufficient hose length and heavy weather as contributing factors, and stresses confirmed communications, radio maintenance and securing suitable equipment before operations.
- 20263 Mar
W2W gangway bumper damaged during demonstration
A walk-to-work gangway bumper broke off during an emergency-retraction demonstration while connected to an offshore wind turbine transition piece. Vessel movement during an approximately one-second uncompensated delay overloaded the bolts. Nobody was harmed. Actions included crew refamiliarisation, revised demonstration procedures and manufacturer evaluation of a possible software revision requiring class approval.
- 202613 Feb
Small engine room fire – flammable object ignited
A small flammable foreign object ignited during post-drydock engine load testing. The crew stopped the engine, isolated fuel and extinguished the fire; nobody was injured. The flash identifies poor housekeeping and absent post-maintenance checks, emphasising machinery-space cleanliness, checks before load testing and regular emergency drills.
- 202612 Feb
Safety warning (video) issued following the capsize and sinking of the tug Biter while assisting the passenger vessel Hebridean Princess with the loss of two lives
This MAIB bulletin announces a video sharing lessons from the fatal capsize and sinking of Biter while assisting Hebridean Princess. It places the investigation within a series of conventional tug capsizes and recommends that named shipping, harbour, pilotage, tug and workboat associations distribute the video to their members.
- 202622 Jan
Some positive findings and good practices
This flash presents four positive marine safety observations: thorough safety-zone entry checks on a PSV, a fabricated mesh guard protecting an open mud-tank hatch during ventilation, simulator-based officer training in Papua New Guinea, and crew-led deck upkeep. It reinforces procedural discipline, hatch protection, competence development and maintenance beyond dry-dock schedules.
- 202522 Dec
Vessel facilities subject to external hydrocarbon hazards guidance note
Guidance on safety cases for vessel facilities exposed to external hydrocarbon hazards. It addresses facility descriptions, formal safety assessment, ignition prevention, gas detection, emergency shutdown and evacuation arrangements. Supporting analyses examine fire, explosion and emergency-system survivability, while the Montara case illustrates shortcomings in preparedness and external-hazard assessment.
- 20257 Nov
Watertight door and emergency hatch found open at sea
An offshore audit found engine-room watertight doors and an emergency hatch open at sea, compromising protection against flooding. The flash discusses possible heat-related shortcuts and gaps in crew awareness of closure requirements. It calls for closed barriers at sea, regular training refreshers and proper ventilation rather than opening safety closures.
- 20251 Sep
Acoustic impact evaluation and management information paper
This information paper advises on assessing and managing marine seismic survey effects on environmental receptors. It addresses acoustic source descriptions, sound propagation modelling, biological thresholds, cumulative effects and uncertainty. Guidance covers receptor-specific acceptability, alternative survey methods, fauna detection, model validation and adaptive management, while distinguishing encouraged advice from regulatory requirements.
- 202531 Jul
Positive – vigilant watch practices
This safety flash highlights a member’s positive observation of bridge watchkeeping during a complex operation close to five fixed offshore platforms. Over three days and nights, officers of the watch and bridge crew refrained from using mobile devices while on bridge duty.
- 202514 May
Foundering of the yacht Bayesian with loss of 7 lives
This interim investigation examines Bayesian’s capsize and foundering near Porticello, Italy, with seven fatalities. It describes abandonment and rescue, analyses storm conditions, and models stability and windage with the centreboard raised. Findings rely on limited verified evidence and an assumed loss condition, pending examination of the salvaged wreck.
- 202524 Apr
Person overboard from keelboat LimbItless with loss of 1 life
This investigation examines Elizabeth Wood’s fatal fall overboard from LimbItless off Cowes. The precise fall mechanism remains unknown. It analyses inadequate individual recovery planning, volunteer training, lifejacket suitability and absent safety-boat support, alongside gaps in oversight of charitable sailing activities and subsequent improvements to recovery provision.
- 202516 Apr
BSEE: Crane safety awareness during offshore helideck operations
An offshore helicopter landing nearly ended in collision when a crane operator raised the boom as the aircraft was 10 feet from touchdown. The pilots performed a successful go-around. Drawing on BSEE findings, the flash highlights procedural enforcement, communication and coordination, with recommendations also applicable to vessel approaches and simultaneous operations.
- 202519 Mar
LTI: rope under tension moved and hit person’s hand
A crew member sustained serious finger injuries when a tensioned winch rope jumped a slipway side during equipment recovery to a vessel. The flash identifies sea-induced movement, an unrecognised hazard area and unsuitable vessel design, and describes revised work instructions, a recovery no-go area and task redesign.
- 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
CHIRP Maritime FEEDBACK 78 (Spring 2025)
This maritime digest examines pilot-ladder deficiencies, a caustic eye injury, unacceptable accommodation, charcoal cargo fire, corroded walkways, yacht fire, disabled carbon dioxide firefighting and rescue-craft capsize. Commentary emphasises time for post-maintenance checks, equipment handovers, crew training and risk assessment, alongside protective equipment and seafarers’ rights.
- 20246 Dec
Environmental Alert 002/2024
This alert highlights reduced operator notifications of offshore installation movements, leaving navigation warnings inaccurate or outdated. It reminds operators to meet Consent to Locate conditions, including informing UKHO and MCA at least 48 hours before installations arrive on location, and relays UKHO’s requested movement notification stages.
- 202424 Oct
Positive: successful rescue of surfer on the open sea
A pilot boat crew rescued a distressed surfer at sea, using a megaphone to establish communication and a man-overboard ramp for boarding. The flash highlights prompt recognition and response, and recommends vigilant watchkeeping, emergency drills, clear communication protocols, safety-equipment checks and monitoring of weather and sea conditions.
- 202417 Oct
Capsize of recreational craft Wheelyboat 123 with the loss of 2 lives
Investigation of Wheelyboat 123’s fatal capsize on Roadford Lake examines bow-ramp leakage, accumulated deck water, loading and wheelchair movement. It assesses maintenance, driver training, risk assessments and unsuitable flotation provision. Physical flotation tests, numerical stability modelling and computational fluid dynamics inform recommendations for safer operation of craft carrying wheelchair users.
- 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
Safety warning issued following the foundering of fishing vessel Argos Georgia with the loss of 13 lives
This safety bulletin presents initial findings from the foundering of Argos Georgia, with 13 lives lost. Its side shell door opened and could not be closed; open internal doors allowed further flooding. Fishing-vessel owners, operators and skippers are urged to assess shell-door risks, implement mitigations and inform crews.
- 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
MAIB: LTI – a wedge shattered causing injury
A cargo-vessel crew member struck a hatch-cover securing wedge with a sledgehammer. The wedge shattered, and a fragment penetrated their right leg below the knee, resulting in three days off work. The flash prompts equipment and work-area checks and consideration of force, swing alignment and direction.
- 202418 Jun
Carriage of methanol – dangerous goods – without proper certification
A workboat transported methanol for refuelling a LIDAR buoy at an offshore wind farm without the required dangerous-goods compliance document. The flash describes inadequate vessel suitability, omissions in contractor risk assessment and apparent lack of awareness. It explains certification requirements for methanol carriage and fully fuelled buoys.
- 202427 Feb
LTI: Damage and personal injury arising from heavy weather
A rogue wave forced open a vessel’s weathertight crane-pedestal door. While attempting to close it, a crew member was struck by incoming water and washed down two flights of stairs, sustaining serious injuries. The flash examines door orientation, coordinated medical care and recommendations to reposition the door and maintain weather awareness.
- 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.
- 2024
CHIRP Superyacht FEEDBACK 5 (Winter 2024)
Five superyacht reports examine a night-time tender grounding, suspected lithium-ion battery thermal runaway, swimmers endangered by propulsion start-up, unsecured shipboard appliances and failure to wear a tender kill cord. Commentary addresses passage planning, communication, crew training, appliance securing and proposed kill-cord interlocks, retaining uncertainty about the battery fault.
- 20239 Nov
Flooding and partial sinking of an inflatable migrant boat with at least 27 lives lost
Investigation into an inflatable migrant boat’s flooding and partial sinking in the Dover Strait, with at least 27 deaths. Examines emergency-call reconciliation, coastguard staffing, cross-border coordination, helicopter and cutter searches, thermal detection limitations and forensic drift modelling. The initial water-ingress cause and exact casualty location remained undetermined.
- 202315 Sep
Safety warning issued following a serious passenger injury during a rigid inflatable boat ride
This interim safety bulletin examines a sea safari passenger’s spinal fracture and permanent paralysis after a RIB slammed into a wave trough. It highlights increased injury risk in forward seats, regardless of speed, and strongly advises operators to review risk assessments and briefings addressing seat use, handholds, posture and stability.
- 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.
- 202316 May
Fire alarm activation in engine room
A supply vessel experienced a small engine-room fire with no injuries and little damage. Bearing failure produced smoke, while remote CO2 activation failed and the cement compartment appeared to lack a discharge point. The flash highlights unreported sensor inconsistencies, crew practice and accurate documentation of firefighting system limitations.
- 202327 Apr
Carbon monoxide poisoning on board the sports cruiser Emma Louise with loss of 2 lives
Investigates two fatal carbon monoxide poisonings aboard Emma Louise at Port Hamble Marina. Gas measurements and optical gas imaging indicated that engine exhaust likely entered the poorly ventilated covered cockpit via a towable ski ring at the transom. The report discusses marine carbon monoxide alarms, ventilation and awareness among recreational boat users.
- 202320 Apr
Near miss – Messroom fridge fell over during rough seas
A vessel’s messroom fridge toppled during transit in 3–4 m seas after its securing brackets pulled out of a stud-wall bulkhead. No injuries were reported; the fridge sustained minor damage. The flash highlights inspecting heavy accommodation items and selecting suitable fixings with regard to the supporting wall’s strength.
- 2023Jan
CHIRP Superyacht FEEDBACK 1 (January 2023)
This first superyacht incident digest examines backstay entrapment, tender grounding, unfamiliar steering controls, unsafe recovery from the water, an uncontrolled anchor chain and a fatal jet-ski collision. Commentary addresses communication, equipment familiarisation, control testing and the pressures that undermine captains’ safety decisions, alongside crew welfare and medical support.
- 202221 Dec
MAIB: Engine room fire flashover
A ferry engine-compartment fire was initially controlled by sealing the space and activating fixed carbon dioxide suppression. After berthing, a fire officer opened the hatch without liaising with the crew, causing rapid reignition and severe damage. Lessons emphasise communication and keeping the compartment sealed until external deckhead temperatures reach ambient levels.
- 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.
- 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.
- 2022Aug
Reporting of offshore installation movements
Guidance on reporting offshore installation movements to government bodies and local helicopter bases. It identifies reporting responsibilities, notification circumstances and advance-warning requirements, promotes a standard reporting form and consistent coordinate formats, and explains that HSE and OPRED notifications concern entry into or departure from UK waters.
- 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.
- 202220 Jun
Fatal crush incident between platform supply vessel and fast rescue craft (2012)
A bosun was fatally crushed between a supply ship’s hull and its rescue craft’s lifting frame during paintwork repairs in Aberdeen. The flash revisits findings on inadequate planning and risk assessment, swell and tidal effects, and delayed medical assistance, recommending assessment of unusual tasks and prompt responses to medical emergencies.
- 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.
- 20225 May
Person overboard from motor cruiser Diamond Emblem 1 with loss of 1 life
Investigates a fatal overboard accident involving a self-drive hire cruiser on the River Bure. Embankment impact threw a passenger into the water, where rope and propeller entanglement caused injuries and drowning. Analysis examines dual-helm controls, labelling, stern protection, handover competence, risk assessment and regulatory oversight.
- 202221 Apr
Subsea transponder wire parted
A positioning transponder’s tripod wire parted during vessel repositioning. The 4 mm wire failed approximately 1 m from the lifting eye, with corrosion and insufficient replacement identified. Divers and a crane recovered the tripod. Actions included performance testing, visual checks before launch and during recovery, and six-monthly wire replacement.
- 202224 Mar
Blackout Condition Results in Loss of Station Keeping Ability and Activates an Emergency Disconnect from the Well
During drillship well completion, an erroneous watermist-release signal caused the fire and gas system to shut down and block all engines, preventing automatic blackout recovery. The emergency generator operated as designed. The vessel drifted off location, and the driller activated emergency disconnection at the red watch circle limit, securing the well.
- 202225 Feb
Jacking Up Lift Boat During Crane Operations
During well abandonment, a lift boat was raised with crane slings still connected to a wellhead. Suspected snagging on hanger pins preceded sling failure and injury to an operator. BSEE recommends considering interface disconnection, attentive crane operation, elevation-adjustment procedures and job safety analysis addressing interconnected equipment.
- 202210 Feb
Cargo shifted during heavy weather
Heavy rolling broke strapping securing metal beam stacks aboard a vessel in transit, leaving seven stacks collapsed or shifted and three moved less. The flash identifies unsuitable loading and lashing, ineffective communication and inadequate supervision. Actions address cargo-securing training, close loading supervision and additional lashings in certain weather conditions.
- 202220 Jan
Master links came free from lifeboat release hooks, releasing the lifeboat
During annual checks alongside, an unmanned lifeboat launch ended with uncontrolled disconnection of both master links and subsequent release of its painters. Incorrectly orientated handles released the hook safety latches. The lifeboat sustained slight damage but no injuries occurred. Replacement links with sideways-orientated handles were specified.
- 20219 Dec
Failure of 64mm polyester rope in subsea mooring operations
A 64mm polyester rope parted while subsea equipment was being lowered, following overload from unsynchronised crane and deployment-winch movements. Nobody was injured, but equipment was damaged. The flash examines missed operator concerns, simultaneous operations and unused stop-work authority, and describes tension indication, improved coordination and retraining in existing procedures.
- 202119 Nov
MOB: Person fell into water during gangway installation
A crew member fell into the water while attempting to lift a portable gangway to free another person’s trapped foot, and was recovered without injury. The flash identifies communication failures, tiredness, insufficient staffing and absent risk assessment, recommending toolbox talks, improved bridge–deck coordination and sufficient supervised, rested crew.
- 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.
- 202115 Oct
Rope under tension parted on deck
During winch-wire recovery ahead of an export cable shore pull, an unapproved polypropylene rope became tensioned, parted and struck a supervisor’s helmet aboard a cable lay vessel. Nobody was harmed. The flash identifies departures from approved rigging, absent workboat supervision and language barriers, emphasising procedural review, task coordination and appropriate bilingual support.
- 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.
- 20214 Mar
Line of fire: deck tugger wire failure
During back-fill plough recovery, a chain sling failed under increasing tension and recoiling rigging narrowly missed deck personnel. The flash identifies unclear communication of a changed hauling method, uncertain operational responsibilities and failure to follow safe-zone requirements. Actions address toolbox talks, procedural compliance, management of change and shared understanding of tensioned-line hazards.
- 20214 Mar
Three man overboard fatalities
This safety flash summarises two bulk-carrier incidents involving three fatalities. Waves washed two crew members overboard while they secured mooring ropes; a bosun drowned while rigging a combination pilot ladder in darkness. It highlights absent lifejackets and securing arrangements, an unsuccessful search, and stopping work when in doubt.
- 202017 Dec
Capsize and full inversion of self-righting keelboat RS Venture Connect sail number 307 with loss of 1 life
Investigation of a fatal keelboat inversion on Windermere during disability-inclusive sailing. An unsecured retractable weighted keel prevented self-righting, trapping the helmsman beneath the hull. The report examines missing rigging instructions, incomplete risk assessments, lifejacket effects on escape and rescue preparedness, including practical righting exercises and subsequent securing modifications.
- 20209 Oct
Crushed finger injury during wire transfer operations
A seaman sustained a crushed left index finger while removing a stopper chain during tow-wire transfer aboard a vessel. Premature removal of a crowbar allowed the wire to fall onto his hand. The flash examines routine-task complacency and unreviewed risk assessment, emphasising assessment, communication and keeping hands clear.
- 202015 Apr
Recent UK MAIB investigations (shifting of cargo and loss of cargo)
This flash summarises two MAIB investigations into cargo movement during heavy seas. European Causeway suffered vehicle damage and a trapped driver, with shortcomings in routing and securing. CMA CGM G. Washington lost containers overboard; findings included reduced container strength, inaccurate weights, mis-stowage and loose lashings.
- 202017 Mar
Marine Safety Forum: Two incidents relating to fast rescue craft
This flash summarises two fast rescue craft incidents: a capsize after a release cable parted and a misunderstood gesture led to bow-line release, and an emergency lowering failure involving a stuck valve arm. Actions address crew communication, launch procedures, release-mechanism checks, maintenance clarity and functional testing.
- 202016 Jan
Loss of cargo containers overboard from container ship CMA CGM G. Washington
This investigation examines the loss of 137 containers from CMA CGM G. Washington in the North Pacific. Parametric rolling was assessed as almost certain. Analysis addresses container strength, twistlocks and lashings, loading-computer limits, verified gross mass and ineffective use of motion decision support, with recommendations concerning software approval and cargo planning.
- 202010 Jan
Water ingress during tropical storm
Rainwater entered a vessel’s upper tween deck through an improperly secured stores hatch during a tropical storm. Deformed hinges impaired hatch seating and clamp operation. Crew contained the ingress by listing the vessel, although some water reached accommodation. Actions addressed hatch securing, regular checks and preventive maintenance.
- 2020
The safe approach, set-up and departure of jack-up rigs to fixed installations (REV 1)
Guidance for duty holders managing jack-up approach, positioning and departure beside fixed offshore installations. It examines collision and hydrocarbon-release risks, pipeline protection, human factors and personnel limits. Site-specific ALARP demonstrations underpin decisions on production shutdown, depressurisation and venting, with live approaches requiring justification of changed circumstances.
- 201917 Dec
Exploding television recovered from sea
A workboat crew attempted to recover a floating television to prevent potential damage to passing boats. Before landing, the set exploded, scattering glass across the aft deck. Both crew members remained protected in the wheelhouse. The flash recommends appropriate PPE and extreme caution when handling objects recovered from the sea.
- 2019Dec
RR1154 - Ship/Platform Collision Incident Database (2015) for offshore oil and gas installations
Research report updating UKCS vessel–platform collision records for 1996–2015, with separate analysis of near misses. It compares installation types, vessel categories, damage severity and geographical distributions, using operating-installation counts and statistical confidence intervals. Reported collision trends decline, but under-reporting and incomplete records limit interpretation.
- 201931 Oct
Keel failure and capsize of charter yacht Tyger of London
Investigation of Tyger of London’s sudden capsize following keel failure. It examines departures from the designer’s drawings, inadequate welding and concealed structural connections that prevented in-service inspection. The report also considers lifejacket use, inaccessible emergency equipment, rescue by St Barbara V and subsequent safety actions.
- 201928 Oct
Marine Operations
HSE guidance supports offshore inspectors in assessing dutyholders’ marine operations and assigning compliance ratings. It covers vessel assurance, collision prevention, cargo transfer, rig moves, walk-to-work gangways and multi-role rescue vessels. Inspection criteria examine operational limits, risk assessments, certification and whether additional vessel duties compromise response and rescue capability.
- 20194 Sep
Listing of crew boat due to water ingress
A crew boat listed on its first voyage after dry-docking when water entered a starboard void space. The flash describes valve installation and gasket defects, a visual-only bilge alarm and a pump control in manual mode. It highlights absent post-drydock inspection and testing, and subsequent pre-sail checks.
- 201912 Aug
Seawater entering cabin caused electrical fault
A passenger cabin porthole left slightly open during vessel operations admitted seawater into an electrical socket, causing a short circuit, burnt wiring and smoke. Responders isolated the supply. The flash highlights vessel induction, watertight integrity inspections when leaving port and a safety discussion involving passengers and crew.
- 201927 Jun
Safety warning about the securing of retractable keels or retractable weighted centreboards
This safety bulletin examines a fatal sailing-boat capsize on Windermere in which an unsecured retractable keel withdrew and a disabled crewman became trapped beneath the inverted hull. It recommends checking keel or weighted-centreboard securing arrangements before use and including retracted-keel scenarios in capsize recovery procedures and drills.
- 201919 Jun
Man overboard from commercially operated yacht CV30 with loss of 1 life
Investigates the fatal loss of Simon Speirs during headsail lowering aboard CV30 in the Southern Ocean. His tether hook snagged beneath a mooring cleat, distorted under lateral loading and released. The report examines recovery difficulties, jackstay arrangements, guardrail integrity, training, supervision, fatigue and gaps in tether testing standards.
- 201918 Apr
Near miss: Cargo shifted on deck in heavy weather
A platform supply vessel experienced casing movement of approximately 3 m to starboard after securing stanchions sheared during heavy rolling. Nobody was on deck. The flash identifies securing and back-load planning shortcomings, and describes pin replacement, non-destructive weld examination, lifespan reassessment and risk assessment for additional pins during winter loading.
- 201926 Mar
Safety warning about drivers remaining in vehicle cabs while ferries are at sea
This bulletin presents initial findings from freight vehicles toppling aboard European Causeway in heavy weather. At least six drivers remained in their cabs despite crew instructions; nobody was hurt. It explains vehicle-deck restrictions, potential delays to emergency response and fire suppression, and calls for coordinated action by ferry operators and hauliers.
- 2019
Structural response to vessel impact
Guidance explains HSE expectations for assessing offshore installations’ structural response to attendant vessel collisions. It covers structural analysis, damage escalation, safety-case evidence and design criteria for new and existing installations. Simplified techniques and finite element analysis support assessment of impact capacity, vessel displacement and tolerable velocity, with periodic reviews and marine controls where required.
- 201812 Nov
Marine seismic surveys - November 2018
This factsheet explains marine seismic surveying using compressed-air acoustic sources and hydrophone streamers, distinguishing 2D, 3D and repeated 4D methods. It outlines potential effects on marine species, environmental assessment and possible acoustic mitigation measures, alongside NOPSEMA’s assessment of environment plans before proposed surveys can proceed.
- 201830 Oct
Potential interference of VHF-FM radio and AIS reception
This flash summarises US Coast Guard reports of LED lighting interfering with shipboard VHF radio and AIS reception, including failed contact during a traffic separation scheme incident. It describes a possible interference test using a quiet radio channel, squelch adjustment and switching LED lights off and on.
- 20183 Aug
High potential near miss: unplanned handling of unexploded ordnance
A high-potential near miss involved recovering and handling wartime munitions during subsea debris clearance. ROV operations continued after ammunition emerged, and crew handled recovered items before specialist advice prompted their return to the seabed. The flash identifies information, identification and management failures, calling for reinforced stop-work authority, change management and revised procedures.
- 20181 Aug
Safety warning about keel failures on sailing yachts
This safety bulletin examines the capsize of the commercial yacht Tyger of London following separation of its shallow-draught lead keel. Partially welded frame connections progressively failed, while lead casting concealed the joins from inspection. It warns owners of similarly constructed keels about survey limitations and recommends conditional out-of-water inspections by qualified yacht surveyors.
- 201814 Jun
USCG: Role of the main propulsion lube oil system in the loss of the El Faro
This flash summarises USCG findings on El Faro’s propulsion loss and sinking. Static modelling indicated that severe inclination and relatively low sump oil volume would likely cause pump suction loss; sloshing was excluded. Operators are urged to review machinery procedures and limitations and verify compliance with applicable standards.
- 201819 Mar
Catastrophic Engine Failure Resulting in A Fire on A Crew Transfer Vessel
This safety flash summarises an engine failure and fire aboard Windcat 8 following a big end bearing failure. Nobody was injured. Fixed firefighting proved ineffective because some engine-space vents remained open. MAIB recommendations address crew training for critical propulsion alarms and familiarity with fixed firefighting systems.
- 201819 Mar
Finger Injury During Recovery of Daughter Craft
A boatman injured his left index finger between a master link and lifting-wire thimble during daughter-craft recovery following a man-overboard exercise. The flash identifies unrestricted thimble movement and inadequate task documentation, and calls for investigating better-protecting master links and reviewing risk assessments and rescue-craft procedures.
- 201828 Feb
Catastrophic engine failure resulting in a fire on crew transfer vessel Windcat 8
Investigates Windcat 8’s engine failure and fire off Lincolnshire. A connecting rod bearing failed, releasing the assembly through the crankcase and igniting oil vapour. Analysis examines engine loading, the response to an unexplained oil temperature alarm, passenger evacuation and ineffective aerosol suppression caused by open vents, with recommendations for crew training.
- 201831 Jan
Inadequate handling and storage of potentially hazardous substances
A vessel crew recovered two floating drums containing unidentified chemicals without considering the risks. Storage near a frequently accessed deck area lacked drip trays, and shore management was not informed. The flash recommends assessment before handling potentially hazardous unknown substances and immediate reporting to arrange collection and destination.
- 201823 Jan
Lifeboat damaged during deployment drill
During a lifeboat drill in port, a concealed broken release wire prevented the forward hook from locking promptly. Wave motion brought the boat against the vessel, damaging its fibreglass hull. The flash identifies inspection and renewal-instruction shortcomings and recommends onboard renewal instructions and portable fenders where available and sea conditions demand them.
- 201721 Dec
Failure of steel wire sling
A steel wire sling connecting two vessels failed during offshore wind farm wire pulling, damaging rigging and the winch vessel. Investigation identified low-cycle fatigue, underestimated dynamic forces and an incorrect working load limit. The flash highlights termination efficiency, equipment certification checks, continuous digital load logging and the effective clear-deck instruction.
- 201715 Nov
USCG: Remain upright by fully understanding vessel stability
This flash summarises US Coast Guard stability guidance following a fatal fishing-vessel casualty in the Bering Sea, with investigation still incomplete. It emphasises understanding Stability Instructions, developing crew knowledge, comparing instructions with actual loading, and independent review. It also highlights conversion-related accuracy and icing risks.
- 20175 Oct
Small boat deployment near miss incident
During a rescue boat drill, a tied remote-control wire tightened and the electric motor tripped, allowing the boat to descend under gravity. Two crew members remained suspended by fall arrestors; nobody was injured. The flash identifies training and procedural shortcomings and calls for launching instruction, conditional fall-arrestor use and risk-assessment review.
- 201725 Jul
High potential incident: Fast rescue craft capsized
A fast rescue craft capsized during a near-shore seismic survey after towed equipment snagged on the seabed and weather deteriorated. Four people entered the sea without injury. The flash discusses overridden stop-work intervention, loading limits and emergency arrangements, alongside two further small-boat incidents involving swell, collision and floating hoses.
- 201725 Jul
Painter parted during small boat operations
A fast rescue craft’s forward painter quick release failed during recovery, allowing the craft to swing into its mother vessel and damage its jet assembly. Three crew members were uninjured. The flash examines inaccessible springs and missing inspection criteria, recording replacement with a G-link, six-monthly visual inspections and a reviewed risk assessment.
- 201727 Jun
LTI: Finger injury during pilot ladder preparation
An ordinary seaman injured his little finger when a floodlight bracket dropped onto his hand during pilot-ladder preparation on arrival in port. The flash identifies positioning, technique, limited risk awareness and inadequate handle design as factors, and calls for revised task risk assessments and more effective toolbox talks.
- 20179 Jun
Near-misses during diving operations
Two diving near misses involved a bell approaching subsea lifting gear during vessel relocation and a stud bolt falling from a vessel towards a seabed worksite. A diver stopped the move, and dive control warned the exposed divers. Neither event caused injury or damage; subsequent arrangements included a dedicated tool basket.
- 20172 Jun
LTI: Tugger winch incident (MSF)
An experienced Able Seaman suffered a crushed foot while using a tugger winch to secure cargo aboard a platform supply vessel. The rotating barrel and wire securing bar trapped his foot against the support plate. A protective frame was subsequently fitted to prevent recurrence.
- 201712 May
Damage to rescue boat during lowering
A rescue boat was damaged during a scheduled lowering drill after its shipside securing chain remained attached. Uneven loading led to supporting-rod displacement and canopy failure; nobody was aboard. Lessons address launch preparation checks, vessel supervision, training and the absence of management of change during crane recovery.
- 201712 May
Line parting as a result of socket failure during grapnel operations
During grapnel recovery to retrieve a seabed cable, a rope pulled out of its socket and ran overboard, damaging stern equipment. Recovery tensions exceeded expectations, while inspections revealed no excessive degradation. The flash records effective handover and clear snap-back zones, and identifies possible gradual socket degradation without visible signs.
- 201712 Apr
Accidents on board yacht CV21 resulting in loss of 2 lives
Investigates two fatal accidents aboard racing yacht CV21: a neck injury during uncontrolled gybes following preventer strop failure, and a crew member washed overboard. Analysis examines HMPE rope loading, tethering practices, supervision, survival equipment and recovery delays, with recommendations addressing procedures, training and personal AIS beacons.
- 201728 Mar
Vessel activities near platforms – two incidents
Two vessel incidents near fixed platforms illustrate failures in fuel-system restoration and steering control. An AHTS vessel blacked out and drifted away after generators tripped; another vessel struck a flare bridge during personnel transfer following rudder feedback-unit failure. Actions address bunkering procedures, handovers, emergency-generator checks and communications.
- 20171 Feb
Man overboard from ocean rowing boat Toby Wallace with loss of 1 life
Investigation into the loss of a rower from Toby Wallace during a North Atlantic crossing. It examines ankle-leash detachment, low gunnels, unused lifejackets and tethers, personal locator beacon provision and recovery difficulties. The report also considers training, overboard risk assessment and gaps in standards for commercially operated ocean rowing boats.
- 20169 Nov
Fatal fall from tug Svitzer Moira
This safety flash summarises MAIB findings on a fatal fall and crushing during tug manoeuvring at Royal Portbury Dock. It highlights the absence of a toolbox talk, inadequate oversight of deck operations and divergence from company instructions. Appropriate PPE was not worn, although its use was unlikely to have altered the outcome.
- 20168 Aug
Safety warning after carbon monoxide poisoning on motor cruiser results in loss of 2 lives
This bulletin presents initial findings following fatal carbon monoxide poisoning aboard a motor cruiser on the Norfolk Broads. Exhaust from a running petrol engine entered through the aft canopy and spread into unventilated accommodation. It emphasises suitable carbon monoxide alarms, routine testing, ventilation and recognising poisoning symptoms.
- 201627 Jun
High potential near-miss: Damage to small boat during offshore survey operations
A small survey boat suffered partial foredeck detachment during offshore transit after a following wave overtook it. Investigation identified insufficient hull-to-foredeck bonding during construction. The crew implemented emergency arrangements and diverted to port. Actions addressed construction quality control, routine bonding inspections, structural repairs and verification of surveyor competence.