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The Marine Accident Investigation Branch (MAIB) examines and investigates all types of marine accidents to or on board UK ships worldwide, and other ships in UK territorial waters.

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Safety Bulletin 2/2013 - Arniston

Published 24 May 2013

Carbon monoxide poisoning on board the Bayliner 285 motor cruiser Arniston on Windermere, Cumbria resulting in two fatalities.

Read Safety Bulletin 2/2013


Carrier Accident Investigation Report

Published 22 May 2013

Key issues:

  • Carrier berthed and loaded at Raynes Jetty despite repeated warnings for bad weather in the area.
  • Loading continued while the weather deteriorated; by the time Carrier started to get underway, the weather conditions were too severe to allow the vessel to manoeuvre safely.
  • Around 33000 litres of gas oil were spilled from ruptured fuel tanks as Carrier grounded and made repeated contact with the concrete coastal shore defences. The vessel was declared a 'total constructive loss' and cut up in-situ.
  • The report makes recommendations for ship and port operators to work more closely together to manage the risks associated with cargo operations.

Read Accident Investigation Report


Safety Bulletin 1/2013 - RHIB Milly

Published 17 May 2013

Key issues:

  • Test kill cords regularly to ensure that the engine stops when the kill cord mechanism is operated.
  • Make sure that the cord is in good condition.
  • Always attach the cord securely to the driver, ideally before the engine is started, but certainly before the boat is put in gear.
  • Stop the engine before transferring the kill cord to another driver.

Read Safety Bulletin 1/2013

Current investigations
This section contains a list of the investigations currently underway in the branch:

Current investigations

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How to report an accident
Accidents (including serious injuries) must by law be reported to the MAIB by the quickest possible means. This is so they can be investigated immediately before vital evidence decays, is removed or lost.

For further information go to the:


Report an accident section