Welcome to the website of the MAIB

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. The sole objective of MAIB accident investigations is to determine the circumstances and causes of the accident with a view to preserve life and avoid accidents in the future, not to apportion blame or liability.

MAIB office relocation
Mountbatten House

From 3 August 2009 our address is:

MAIB, Mountbatten House, Grosvenor Square, Southampton, SO15 2JU

Telephone/fax numbers remain unchanged.

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

Click here for current investigations

Publications and information
Click here for detailed MAIB reports including downloadable and printable documents.

Click here for MAIB reports

Freedom of Information Act
How to report an accident
To find out what you need to do to report an accident look at our reporting an accident section.

Click here for reporting an accident