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IMCA safety flashes disseminate important information on incidents and potential hazards and the lessons learnt from them that can help prevent incidents occurring elsewhere in the industry.

Individual safety events are available individually online, tagged and searchable, while the traditional PDF collections are also available for download.

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All members are encouraged to contribute relevant safety-related information – please visit our Safety Flash Reporting page for details on the submission process.

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Nicholas Hough
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MAIB: Blockage of fixed CO2 fire extinguishing system pilot hoses

The UK Marine Accident Investigation Branch (MAIB) has published Safety Bulletin 1/2022 into a fire on board a roll-on/roll-off cargo ship in September 2021. What happened A fire broke out […]

| Included in IMCA Safety Flash 10/22

Subsea transponder wire parted

What happened A tripod positioning transponder wire parted from the tripod framework whilst the vessel was repositioning and needed to re-plumb the transponder. No assets were close by at time […]

| Included in IMCA Safety Flash 10/22

Diver experienced an air flow restriction

What happened At the beginning of an air dive at 23msw, a diver experienced an air flow restriction. The system used was considered as a Mobile Surface Supplied System, the […]

| Included in IMCA Safety Flash 10/22

COBRA System – Hose coupling cross threaded

What happened During diving operations, diver 1’s right-hand COBRA hose had a “champagne” leak coming from the connection at the hat. The diver was instructed to return to the bell […]

| Included in IMCA Safety Flash 10/22




USCG: Lithium battery fire

The United States Coast Guard (USCG) has published Safety Alert 01-22 relating to a Lithium battery fire in a freight container whilst en route to a port for trans-shipment to […]

| Included in IMCA Safety Flash 09/22

USB power bank (Lithium battery) fire

What happened A crew member on a vessel was inside his cabin bedroom when he heard a popping sound in his dayroom. Upon investigating he noticed the USB battery bank […]

| Included in IMCA Safety Flash 09/22

MAIB Safety Digest 1/2022

The UK Marine Accident Investigation Branch has published Safety Digest – Lessons from Marine Accident Reports 1/2022, which draws the attention of the marine community to some of the lessons […]

| Included in IMCA Safety Flash 09/22


MSF: Unsafe Cargo Transfer Using Pallets

The Marine Safety Forum (MSF) reports in Safety Alert 22-06 that an MSF member reported two separate incidents during deck cargo transfer operations involving pallets. What happened Incident #1: Lifting […]

| Included in IMCA Safety Flash 08/22

NTSB: Dangerous engine failure – improper torquing

The National Transportation Safety Board of the United States (NTSB) has published Marine Investigation Report 22/06 relating to a Diesel generator engine failure aboard a ferry in Puget Sound, Washington […]

| Included in IMCA Safety Flash 08/22


Mooring near miss: Guide roller pin suffered material failure

What happened? A deck stand guide roller pin suffered material failure at its foundation whilst a vessel was mooring. Weather, wind and tide conditions were gentle at the time of […]

| Included in IMCA Safety Flash 08/22


MSF: Contact between Vessel and Offshore Installation

The Marine Safety Forum (MSF) has published Safety Alert 22-02 relating to a collision between a standby vessel and an offshore installation.   What happened There was a shift change of […]

| Included in IMCA Safety Flash 07/22

Overcoming Language Barriers

Safety4Sea https://safety4sea.com has published an excellent article on issues with language barriers at sea. The article can be found here. Language barriers are a common challenge in the shipping environment […]

| Included in IMCA Safety Flash 07/22



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