Control
Preventive Maintenance
Planned servicing to prevent failure and preserve safety performance.
Newest 100 Documents
All 657 in search- 202612 Aug
Crane Failure Highlights Crane Inspection Gaps
Two platform crane incidents involved failed sheave bearings, a falling boom and a dropped cable and load block. Inspection gaps included omitted pin removal and inadequate lubrication checks. The alert recommends considering revised inspection criteria, scheduled inspections, training to recognise mechanical distress and lift planning around vessel interfaces.
- 20261 Jul
Inspect A2B Systems and Wire Rope Terminations to Prevent Crane Hazards
A lift boat crane incident involved a detached anti–two-block weight, corroded wire rope and falling components. Recoiling rope struck a nearby diver, causing minor injuries. The alert recommends considering termination maintenance, pre-use and periodic inspections, adjusted replacement intervals in corrosive environments, and competence assurance under API RP 2D.
- 20266 Jun
Poorly Maintained Crane Components Result in Multiple Personnel Injured During Transfers
Two offshore personnel-basket transfer incidents involved uncontrolled crane auxiliary-line descents and injuries. Investigations identified uncorrected component deficiencies in one case and inadequate hoist brake adjustment in the other. The alert recommends considering timely maintenance, loaded brake checks, wire-rope fouling checks, stop-work interventions, clearer transfer communications and verified medical evacuation arrangements.
- 202621 May
AW139 Tail Rotor Duplex Bearing Failure Discovered During Maintenance
AAIB investigates a tail rotor duplex bearing failure on AW139 G-CIMU, discovered during maintenance at Norwich Airport after offshore passenger operations. Forensic examination could not establish the initiating cause. Rig testing discounted removal damage, while flight-data analysis identified pedal-position trends. The report examines inspection limits, condition monitoring and critical-part regulatory assurance.
- 202614 May
Machinery damaged through improper maintenance technique
An offshore vessel audit identified a fuel oil purifier that failed to self-discharge. Investigation found incompatible component swaps and bowl damage from improper dismantling without specified tools. The flash highlights adherence to manufacturer instructions, compatible genuine parts, planned maintenance intervals, repair records and stop-work authority.
- 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.
- 2026May
GEC Type VMX High Voltage Switchgear (including GEC Alsthom, Alstom or Areva T&D)
HSE safety notice addresses partial discharge and vacuum interrupter integrity in legacy GEC VMX high-voltage switchgear. Following a disruptive circuit-breaker failure involving arcing and fire, it recommends checking applicable design modifications, maintenance records and substation environmental conditions, alongside discharge surveys, integrity testing and revised access risk assessments.
- 202631 Mar
Hazard identification and risk assessment guidance note
Guidance for titleholders on assessing well integrity risks throughout the well lifecycle. It discusses subsurface assessment, independent design review, qualitative and quantitative analysis, FMECA, bow-tie methods and risk registers. Risk profiles inform monitoring and maintenance regimes, anomaly management, change assessment, and planning for well suspension and abandonment.
- 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.
- 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
Cook temporarily trapped in freezer
A vessel’s cook became trapped in a walk-in freezer when the unsecured door closed during adverse weather and the internal release button was inoperable following moisture ingress. Crew opened the door externally without injury. Actions included weekly maintenance inspections, greasing the release mechanism, revised entry procedures and crew training.
- 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.
- 202613 Feb
Positive: damage to Fast Rescue Craft davit wire rope caught before failure
Routine checks revealed a fracture at the socket termination of a fast rescue craft davit wire rope before failure occurred. An authorised service provider inspected and repaired the rope. The flash emphasises monthly maintenance, checks before every use, attention to load-bearing components and discussion of defects during crew safety meetings.
- 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.
- 202622 Jan
Mechanic got burns due to fire in portable generator
A marine mechanic sustained minor right-arm burns after spilled petrol ignited during portable-generator refuelling at a dock workshop. Dragging the generator produced a friction spark. The flash identifies missing rubber bushings, absent procedures and risk assessment, inadequate maintenance and housekeeping, and difficult access to fire extinguishers.
- 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.
- 2026Jan
Well Operations
An inspection guide presenting compliance questions for well operations under Subpart G, with regulatory authorities and enforcement codes. It covers casing and liner integrity, surface and subsea blowout preventer configuration, pressure and function testing, maintenance and records, alongside specific requirements for coiled tubing and snubbing systems.
- 20255 Dec
Falling Corroded Crane Component Results in Near Miss
A corroded crane boom cable runner fell approximately 50 feet during maintenance on an offshore platform, landing approximately 20 feet from personnel. The alert identifies uncompleted inspection repairs, incomplete hazard identification and absent barricading, and recommends considering improved job safety analysis, supervision and maintenance follow-through.
- 2025Dec
CHIRP Superyacht FEEDBACK 8 (December 2025)
Superyacht incident reports examine a failed mooring attachment, captain harassment, generator starter battery explosions, collision at anchor, unsafe pilot boarding arrangements, unprotected work aloft and defective life rafts. Commentary discusses battery capacity and ventilation, engineering handovers, equipment servicing and testing, reporting concerns and organisational safety culture.
- 2025Dec
Health Safety Insight 2025
Annual review of UK offshore energy health and safety, centred on 2024 performance with historical comparisons. It examines hydrocarbon releases, maintenance backlogs, injury trends, medical assessment outcomes and evacuations, including mental health. Offshore aviation analysis covers fleet utilisation, helicopter safety indicators and the inclusion of wind operations.
- 202517 Nov
Broken equipment repaired or replaced
Five cases describe defects affecting a dock firefighting pump, immersion suit zip, emergency exit handle, ventilation flap seals and lifejacket storage box hinges. Repairs, replacement and additional inspection arrangements restored readiness. The flash highlights potentially serious cumulative consequences of minor defects and suggests considering regular checks of safety equipment details.
- 2025Nov
Food Hygiene Inspection Guide
An offshore food hygiene inspection guide for regulatory inspectors, linking legal requirements with dutyholder performance ratings and enforcement expectations. Its Plan, Do, Check, Act checklist examines HACCP arrangements, catering facilities, temperature monitoring, cross-contamination, cleaning, maintenance, staff competence and verification of food safety management.
- 20252 Oct
USCG: Lithium-Ion battery system installations
Summarises USCG advice following a lithium-ion battery bank fire on a passenger vessel caused by overheated, loosely crimped lugs. Discusses thermal runaway, toxic off-gases and suppression difficulties, alongside engineering review, battery management, condition inspections, maintenance, crew competence and fire drills. No injuries and minimal vessel damage were reported.
- 202518 Sep
Auxiliary engine room fire on board the ro-ro cargo ship Finnmaster
Investigation of Finnmaster’s auxiliary engine room fire during departure from Hull. Partial fuel injection pump coupling failure and leaking hot exhaust preceded fuel hose failure and ignition. The report examines defective emergency power, incomplete carbon dioxide suppression, maintenance and supplier assurance, system testing and crew response. No injuries were reported.
- 2025Jul
Hydrocarbon Active Fire Protection
An inspection guide for offshore hydrocarbon fire protection, setting out regulatory expectations, success criteria and dutyholder scoring. It examines firewater pumps, ring mains, deluge coverage and chemical dosing, with emphasis on corrosion, marine growth, system availability, as-found testing and investigation of recurring blockages.
- 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.
- 202518 Jun
Dropped object hazard: access hatch to the communication dome
A scheduled mast inspection identified a detached communication-dome hatch. Its primary securing mechanism had failed, while an undersized secondary lanyard used adhesive pads that detached. The flash recommends mechanically fixed, appropriately rated secondary retention, anti-loosening measures, planned maintenance and procedural double checks after work.
- 202518 Jun
MAIB: Is your Lead-Acid battery safe?
A barge crew member escaped injury when four lead-acid batteries exploded during generator starting. The steel locker contained the explosion. Investigation identified batteries unsuitable for continuous float charging. The flash highlights documented maintenance and replacement records, ventilated battery stowage and corrosion-resistant, flame/explosion-proof compartment lighting.
- 202510 Jun
BSEE Safety Alert 502 -Fatigue Cracking of Three-Quarter-Inch Pipe Nipple Results in Gas Release
An offshore gas release followed fatigue failure of a threaded ¾-inch pipe nipple on a compressor suction scrubber, prompting platform shut-in and personnel muster. The alert discusses possible installation stresses, vibration and unsupported bridle weight, and recommends considering structural support, proper tightening, regular inspection, vibration monitoring and maintained dampers.
- 202522 May
EC175 B Rotor Blade Failures at Offshore Platform During Strong Winds
Investigates rotor blade failures on EC175 B G-MCSH at the Elgin platform during strong winds. A partially seized rotor brake prevented blade securing; local vertical airflow was considered to exacerbate blade sailing. The report examines maintenance, securing equipment, helideck airflow, wind reporting and flight recorder anomalies, and makes six safety recommendations.
- 202529 Apr
BSEE: Nitrogen cylinder rupture causing worker injuries and equipment damage
A nitrogen cylinder ruptured at its base during preparations to pre-charge accumulator cylinders, dispersing cylinders and debris and causing minor shrapnel injuries to three rig personnel. BSEE attributed the failure to corrosive wall loss aggravated by environmental and structural conditions. Recommendations address recertification, filling pressure, training, inspection and corrosion-preventive maintenance.
- 202526 Feb
Contact with pier by paddle steamer Waverley
Investigation of Waverley’s contact with Brodick pier on 3 September 2020, injuring 24 passengers and crew. Engine dead centre delayed astern propulsion. The report examines piston valve securing, lost engineering expertise, informal training and unassessed closed-end berthing risks. It records subsequent maintenance and operational changes, with no recommendations made.
- 202520 Feb
MSF: A broken stretcher could have led to injury
A stretcher fractured during transfer to a hospital bed following a vessel medevac, without further injury to the patient. Investigation found it was 13 years old; its manufacturer advised replacement after five years for that type. The flash recommends examination and replacement where shelf life has expired, noting manufacturer-dependent limitations.
- 20256 Feb
MAIB: Step-ladder failure (LTI)
A crew member fell when a folding stepladder’s top-step support welds failed, sustaining back and head injuries. MAIB considered pre-existing damage almost certain; the ladder was not overloaded. The flash stresses thorough pre-use inspection, equipment upkeep and a just culture supporting honest incident reporting.
- 20256 Feb
MAIB: Vessel cook injured by spillage of burning cooking oil
A cook aboard an offshore support vessel suffered severe burns when wet chemical suppression displaced burning oil from a shallow-sided gyro pan. A faulty thermostat and unsuitable use for deep-frying featured in the incident. Lessons address hazardous work-arounds, regular maintenance, testing overheated appliances and following manufacturers’ guidance.
- 202527 Jan
BSEE Safety Alert 495 - Turbine Generator Exhaust Silencer Failure
An offshore turbine generator silencer released perforated steel onto the deck after shutdown, with some pieces weighing up to 44 pounds. The alert describes 18 years of service and limited inspection coverage. BSEE recommends considering comprehensive exhaust-component maintenance, whole-silencer inspections, design assurance and dropped-object prevention measures where appropriate.
- 202524 Jan
BSEE Safety Alert 494 - Ruptured Nitrogen Cylinders
A nitrogen cylinder ruptured during preparations to pre-charge an accumulator system, causing three minor shrapnel injuries and equipment damage. BSEE attributes the failure to corrosive wall loss, aggravated by crevices, moisture and deteriorated rack coating. Recommendations address cylinder recertification, filling records, training, inspection and corrosion-preventive maintenance.
- 2025
MAIB Safety Digest 1/2025
A marine safety digest examining merchant, fishing and recreational vessel casualties, including collisions, groundings, fires, capsizes and people entering the water. Case lessons address navigation, mooring, towage, maintenance and emergency preparedness, with detailed discussion of flotation-device entanglement, battery charging, fuel hoses and vessel modifications. Reproduced bulletins and flyers provide further incident-specific learning.
- 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.
- 202427 Nov
NTSB: Crane wire failure
This safety flash recounts a crane wire failure during offloading of a 69-tonne wind turbine nacelle into a cargo vessel’s hold. Undetected corrosion and strand-wire wear were the probable cause. It explains how grease concealed corrosion despite routine inspections and maintenance, and highlights inspection requirements and condition-dependent wire replacement intervals.
- 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.
- 202424 Oct
Main Crane failure during load test
An offshore crane overload test ended with broken main-block wires and two cargo barges falling into the water. Uneven drum torque followed clutch-pad slipping, linked to inadequate burnishing of new pads. The vessel listed approximately nine degrees; nobody was injured. Lessons cover burnishing, torque testing, planned maintenance and crane FMEA review.
- 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
Fire in engine room
A vessel engine-room fire was most likely caused by a fuel leak following pipe misalignment during reassembly. Blocked detection tubing and drains, unavailable water-mist suppression and delayed ventilation shutdown contributed to escalation. The flash highlights correct assembly, regular inspections, fire drills and checks of emergency procedures.
- 202429 Aug
Lifeboat air cylinder explosion on an empty installation
A lifeboat air bottle explosion was discovered on an uncrewed, shut-in offshore platform, with no injuries or known incident date. Inspection revealed corrosion beneath bottles seated in saddles. The flash discusses restricted inspection access, possible galvanic effects, depressurisation, improved bottle positioning and insulation between dissimilar materials.
- 20241 Aug
Capsize and sinking of fishing vessel Angelena
Investigation of Angelena’s capsize and sinking during single-handed catch recovery off Exmouth. It examines excessive suspended net loading, low fuel levels, vessel modifications and absent stability testing. The report also analyses crewing assumptions in risk assessments, stability training and lifesaving arrangements that helped the uninjured skipper survive.
- 202416 Jul
Electric shock after water ingress to switch
A vessel visitor received an electric shock from a steering-room switch left live and unprotected after maintenance. Water entered during engine-room washing following major repairs. The flash highlights completing maintenance before reinstatement, isolating and protecting electrical connections during cleaning, and recording regular competent inspection and testing.
- 202416 Jul
Loss of pressure to diver’s primary air supply
A diver was recovered safely after primary air supply pressure fell. Surface testing traced regulator sticking to dried lubricant restricting the sensing assembly, particularly during light breathing. The flash discusses supervisory intervention, insufficient internal servicing, regulator rotation and increased six-monthly maintenance, testing and cleaning.
- 20242 Jul
ROV dropped to seabed
An ROV fell to the seabed after recovery-system latching problems and umbilical separation. Cold, dirty grease slowed the latch, while the operator could not see the locked-position indicator. The flash identifies maintenance, procedure and supervision shortcomings and describes cleaning, functional verification and renewed procedural assurance.
- 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.
- 2024May
Risk of serious injury from motion compensated gangways
This safety notice addresses serious injury risks during deployment and use of motion compensated gangways, including entrapment, shearing and falls from open walkway ends. It sets out expectations for risk assessment, timely audible and visible auto-retraction warnings, user and operator competence, and inspection and maintenance arrangements.
- 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.
- 202425 Apr
Loss of control of powerboat Awesome with loss of 2 lives
MAIB investigates Awesome’s fatal loss of control near Little Thatch Island in the British Virgin Islands. A worn universal joint failed and the flailing drive shaft severed a hydraulic steering hose. The report examines lubrication, stepped-hull behaviour, seating, flotation devices, kill cords and rescue actions. Two occupants drowned; no recommendations were made.
- 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.
- 202427 Mar
Person injured when chain hoist container failed at securing point
A chain-hoist container weighing approximately 30 kg fell around 0.8 m onto a crew member during pipelaying clamp adjustment, causing bruising and contusion. The flash identifies an inadequately engineered modification, omitted secondary retention and incomplete inspection detail, and calls for change management, improved maintenance inspections and secondary retention where required.
- 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.
- 202419 Feb
USCG: wire rope hazard management – dropped turbine nacelle
A vessel crane’s wire rope failed during offloading, dropping a 69-ton wind turbine nacelle 2.2 m onto the deck near personnel. Corrosion, wear and monotonic ductile overload were identified. The flash relays USCG recommendations on load testing, lubrication, maintenance tracking, earlier rope renewal, visual inspection and crane-operator training.
- 202419 Feb
Vessel damaged in contact with platform
A crew transfer vessel struck a fixed platform after its port inner main engine remained driving forward. Worn carbon brushes caused the propulsion actuator to freeze. Control was regained too late to prevent wheelhouse damage; nobody was injured. Actions included fleet motor checks, revised maintenance arrangements and renewed emphasis on loss-of-power drills.
- 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.
- 202412 Feb
MSF: Two dropped object incidents
Two vessel incidents involved a metal wedge falling 13 m during gangway pin removal and a lightning rod falling 26 m onto deck. The flash examines unsecured items, access to drop zones and rod fittings, describing tethering modifications, improved barriering guidance and planned maintenance checks.
- 20247 Feb
Safety warning issued following a chain failure on scallop dredger Honeybourne III with loss of 1 life
This safety bulletin examines a fatal deckhand injury aboard Honeybourne III after a quick-release chain failed during dredging gear retrieval. It discusses wear and inspection difficulties where chains pass over static derrick-head pins, alternative release arrangements, and recommendations for urgent documented risk assessment, mitigation and crew communication.
- 202422 Jan
MSF: LTI – Engineer scalded
An engineer aboard a platform supply vessel suffered scalding burns when a cooling-water compensator burst during refilling after repair. The flash discusses sudden pressure increase, unsuitable temperature rating, likely material degradation and potentially inadequate pressure relief. Corrective measures address compensator suitability, installation checks, cooling before refilling and planned inspection and maintenance.
- 2024
MAIB Safety Digest 2/2024
A collection of marine accident accounts and preventive lessons spanning merchant shipping, commercial fishing and recreational boating. Cases examine steering and propulsion failures, mooring injuries, grounding, fire, flooding and capsize. Lessons address maintenance, navigation, risk assessment, equipment interfaces, watertight integrity and emergency evacuation, alongside reproduced safety bulletins and flyers.
- 202314 Dec
BSEE Safety Alert 478 - Inadequately Maintained Electrical Connections and Compromised Wiring Integrity (6)
This alert examines three electrical incidents involving a loose generator cable connection, damaged heat-trace insulation with improper grounding, and rainwater ingress into generator wiring. It recommends that operators consider routine maintenance, training, emergency-response rehearsals, improved cable procedures, lockout/tagout reinforcement and periodic infrared inspections.
- 2023Dec
Overfill of vapour recovery units
HSE warns that a gasoline overfill exposed dependence between a vapour recovery unit’s process controls and overfill protection, resulting in loss of containment. The notice calls for risk assessment, physical verification, inspection, maintenance and testing of safety functions, with independent safeguards and control-system modifications where required, managed through change procedures.
- 202327 Nov
Failure of proportional valve in saturation chamber control
A proportional valve feedback fault interrupted saturation diving, without injury or equipment damage. Automatic safeguards isolated the line and transferred control to a manual valve. Unauthorised dismantling obscured the origin of potentiometer damage; debris was also found. Lessons address manufacturer-led maintenance, critical spares, training and testing before diving resumes.
- 202314 Nov
Carbon Monoxide Exposure Risk in Offshore Environments
BSEE inspections identified elevated carbon monoxide exposure risks from gas-powered machinery on offshore facilities during calm weather. The alert examines accumulation in occupied spaces, delayed stationary detector alarms and occupational exposure limits. It recommends that operators and contractors consider portable detection, ventilation, exhaust integrity checks, machinery placement and personnel awareness measures.
- 202314 Nov
Flash Fire from Oxygen Regulator Leads to Burn Injury
A crew member suffered first- and second-degree wrist burns when an oxygen regulator burst during preparations for welding in platform decommissioning. The alert explains oxygen-system ignition hazards and recommends considering brass rather than aluminium fittings, controlled valve opening, contamination prevention, maintenance, training and protective clothing that keeps skin covered.
- 202313 Nov
Failure of AHC cylinder causing oil leak to deck
An offshore vessel’s heave-compensated crane suffered a hydraulic cylinder failure during jumper installation. Worn seals allowed oil to accumulate behind the piston, leading to end-cover bolt failure. Approximately 150 litres remained contained aboard. Proposed actions address pressure alarms, seal inspections, return-filter checks and planned cylinder overhaul.
- 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.
- 202330 Oct
Fire extinguisher fails during pressure testing
A 13-year-old, 5 kg CO2 fire extinguisher rated to 200 bar failed at 196 bar during a scheduled hydrostatic test intended to reach 300 bar. Nobody was harmed. The flash discusses ageing and integrity, alongside actions concerning maintenance reviews, age-sensitive testing plans, inspection records and personnel training.
- 202330 Oct
Fire-fighting equipment in poor condition
A vessel audit identified several 50 kg wheeled dry powder extinguishers with low pressure and extensive corrosion, despite monthly inspections. The flash highlights gaps in crew understanding of inspection quality and calls for defective equipment to be quarantined, repairs or replacements arranged, regular servicing and crew awareness sessions.
- 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.
- 202323 Oct
Bypass of Emergency Shutdown in Rented Equipment Results in Additional Risk to Personnel and the Environment
An offshore inspection found a rented generator/light plant powering a coiled tubing unit with its emergency shutdown bypassed following air intake hose removal. A functional test confirmed shutdown failure. The alert recommends considering rental-equipment checks, maintenance-record review, competence assurance and protective procedures when shutdown systems require bypass.
- 20233 Oct
Emergency Response – Version 3 October 2023
An offshore inspection guide for assessing dutyholder emergency arrangements and rating performance. It examines emergency planning, command, communications, muster, evacuation, escape and recovery, distinguishing escape provision from evacuation capacity. Detailed checks address survival-craft capacity, familiarisation, maintenance, emergency lighting and compatibility of protective equipment.
- 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.
- 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.
- 202329 Aug
BSEE: Improper use and application of high-pressure hoses
An offshore inspection identified a hydraulic hose unsuitable for nitrogen during pressure safety valve testing. Injection of nitrogen at 2500 psi caused blistering and leakage. The flash summarises BSEE recommendations for operators and contractors to consider hose selection, fluid compatibility, inspection and replacement intervals, damaged-hose disposal, work permits and hazard communication.
- 202324 Aug
Safety warning issued about servicing and certification after a liferaft failed to inflate during an emergency
MAIB reports liferaft servicing and certification deficiencies identified after Piedras foundered and its port liferaft failed to inflate correctly. Examination of the recovered starboard raft and further inspections revealed expired supplies and neglected components. The bulletin recommends urgent reinspection and servicing of affected DSB liferafts certified by Comfer Marin SL.
- 202315 Aug
MSF – Two recent dropped object incidents
Two Marine Safety Forum incidents concern a breakaway coupling falling onto an accommodation vessel’s deck and a barrier tape handle falling from an offshore platform onto a supply vessel. The flash discusses overdue coupling maintenance, unnecessary retention during lay-up, insecure handle design, and recommendations for maintenance, removal and consideration of secondary restraint.
- 20233 Aug
Electrocution incident – make sure electrical equipment is safe!
A vessel cook suffered a mains electric shock while touching a bain-marie and messroom service window simultaneously. A detached earthing wire caused an earth fault in the heater element. The flash describes gaps in galley testing and maintenance, followed by fleetwide electrical testing, planned maintenance additions and revised risk assessment.
- 2023Aug
Unsafe bolts on BendPak XPR series two-post vehicle lift
HSE warns that some BendPak XPR two-post vehicle lifts have understrength arm-restraint bolts, creating a risk of collapse or a vehicle falling. Users should check bolt markings, torque and redesigned gear fitment, replace unsuitable components before further use, and arrange competent thorough examination and maintenance.
- 202313 Jul
LTI: Serious hand injury – fingers lost in unexpected hatch closure
A crew member checking an engine-room emergency hatch suffered finger injuries requiring amputation when an improvised chain restraint failed. Safety locking pins were missing. The flash identifies shortcomings in planned maintenance, pinch-point awareness and toolbox talks, and calls for improved maintenance implementation, thorough briefings and stopping work rather than improvising safety equipment.
- 20235 Jul
Lack of Uninterruptible Power Supply
Three offshore production incidents illustrate uninterruptible power supply failures affecting emergency power, communications and process controls. The alert examines capacitor damage, battery overcharging, inadequate maintenance instructions and outdated drawings. It recommends operators consider maintenance and testing programmes, thermal scanning, redundancy and emergency response arrangements for power loss.
- 202329 Jun
Improper Use High Pressure Hoses Leads to Injuries
An offshore inspection identified a hydraulic hose unsuitable for nitrogen service that blistered and leaked when pressurised to 2500 psi. The alert recommends considering hose selection, fluid compatibility, temperature, inspection and replacement intervals, alongside work permits, job safety analyses and communication of pressurised-hose hazards.
- 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.
- 2023Jun
Pop-up toilets: Risk of crushing
This safety notice describes a fatal crushing incident beneath a raised telescopic pop-up toilet. It addresses chamber access, cleaning, inspection and maintenance risks, prioritising risk assessment and suitably rated engineering safeguards against lowering. It also calls for maintained controls and adequate safety information, with written instructions where appropriate.
- 202324 May
Hand injury in medical airlock
A life support technician injured a finger when a stiff dive-chamber medical airlock hatch moved suddenly, trapping his hand between an operating-wheel brace and the hinge plate. Actions included door lubrication, planned maintenance, hand-placement warnings and instructions, and demonstrations during vessel familiarisation.
- 202316 May
Crane boom stopper fell to main deck
A vessel crane’s knuckle boom stopper pad detached during slewing in preparation for use. The 15.5 kg component fell 35 m to the main deck without injuring anyone. The flash describes its adhesive-only attachment, subsequent mechanical securing, and recommendations for additional fixings and inspection of difficult-to-access dropped-object hazards.
- 20233 May
Maintenance and control of fire doors
This safety flash describes poorly maintained vessel fire doors, altered closing mechanisms and doors tied open, reducing fire and smoke boundary effectiveness. It calls for automatic closure and complete sealing, including hose ports, adherence to routine maintenance and inspection regimes, and immediate reporting of defects.
- 202320 Apr
Dropped spanner falls 15 m
A spanner detached from its tool lanyard during hydraulic hose replacement outside protective netting and fell 15 metres to a deck. Nobody was injured. The flash examines worn carabiner threads, unauthorised additional work and barrier weaknesses, and describes actions on inspection, maintenance, work limits and dropped-object exclusion areas.
- 202327 Mar
Leak of oil-based mud
A vessel preparing to transfer oil-based mud to shore spilled about 20–25 litres through tank ventilation during hose pressure testing. A deteriorated valve seal prevented full closure. The flash describes deck containment, toolbox communication, valve replacement, monthly manifold-valve cleaning and clearing residual chemicals or mud from transfer lines.
- 202327 Mar
Life raft secured incorrectly on cradle
An onshore vessel visit identified a life raft painter rope attached to its cradle rather than the hydrostatic release unit’s weak link. Installation had not been checked, and visual inspection addressed condition rather than correct securing. Post-installation checks and weekly life-raft inspections were added to planned maintenance.
- 202327 Feb
Battery explosion during routine maintenance
A harbour tug’s Chief Engineer sustained minor injuries when a spanner inadvertently short-circuited a battery during preparations to replace a failed disconnect switch. The flash discusses electrical isolation, terminal protection, suitable tools and protective equipment, alongside increased maintenance inspection and consideration of chargers with temperature sensors.
- 20239 Feb
Air hose connection failure
An air hose detached from a tugger winch coupling after use; nobody was injured. The flash describes an incorrect adapter, a homemade connection and improperly installed whip checks. It recommends manufacturer-specified hose-barb adapters, correctly positioned whip checks and adequately resourced planned maintenance.
- 20239 Feb
Electrolytic corrosion: Failure of fire hose couplings
A fire hose coupling failed during annual pressure and leak testing aboard a vessel. Examination identified corrosion and seized floating flanges, with advanced deterioration also found at the opposite end. The flash recommends targeted coupling inspections, detailed planned maintenance and personnel briefings; brass may be preferred when replacement fittings are required.
- 202318 Jan
Near miss: pilot ladder – side rope failed
During night-time pilot boarding, a ladder side rope parted during weight testing; the pilot was uninjured and boarding was aborted. The flash identifies omitted strength testing, continued use beyond operational life and absence of a spare ladder. Actions address pre-use inspection, replacement intervals and planned maintenance records.