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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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RMS Queen Mary 2

MAIB Accident Investigation Report and Safety Flyer

RMS Queen Mary 2

Published 22 December 2011

Key issues:

  • Explosion in the machinery space was triggered by the failure of a large capacitor within a 11kV passive harmonic filter
  • The protection system for the harmonic filter did not work
  • Vessel blacked out and was without steering or propulsion for 30 minutes. There were 3823 people on board at the time of the accident
  • The investigation identified that there is a need to improve the awareness of the potential risks of high voltage harmonic distortion and arc flash.
 

Read Accident Investigation Report and Safety Flyer



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

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