Marine transportation safety investigation M13W0057

Update: This investigation has been completed. The report was released 31 March 2014.

Table of contents

USFV American Dynasty and HMCS Winnipeg, Esquimalt, British Columbia.

HMCS Winnipeg
Fishing Vessel American Dynasty
Esquimault Harbour
Esquimalt, British Columbia

View final report

The occurrence

On 23 April 2013, the fishing trawler American Dynasty struck the HMCS Winnipeg while being towed to the graving dock in Esquimalt, British Columbia. There were injuries reported on the HMCS Winnipeg.

Media materials

Deployment notice

23 April 2013

Transportation Safety Board of Canada deploys a team to Esquimalt Harbour, British Columbia, to investigate an incident involving the fishing vessel American Dynasty and the frigate HMCS Winnipeg

Richmond, British Columbia, 23 April 2013 — The Transportation Safety Board of Canada (TSB) is deploying a team of investigators to Vancouver Island, British Columbia, to gather information and assess an incident involving the fishing vessel American Dynasty and the frigate HMCS Winnipeg, which occurred in Esquimalt Harbour.

Investigation information

Map showing the location of the occurrence


Photo of Mohan Raman

Mohan Raman has been a senior investigator at the Transportation Safety Board of Canada since 2011.

Before joining the TSB, Mr. Raman was a ship safety inspector for Transport Canada in British Columbia, performing onboard inspections.

Mr. Raman has 28 years’ sailing experience in the engineering discipline on board a variety of vessels, culminating in his appointment as Senior Chief Engineer and Project Manager with BC Ferries. Mr. Raman is a Certified First Class (Motor) engineer and holds a Bachelor’s degree in Mechanical Engineering from Bombay University, India.


  Download high-resolution photos from the TSB Flickr page.

Class of investigation

This is a class 3 investigation. These investigations analyze a small number of safety issues, and may result in recommendations. Class 3 investigations are generally completed within 450 days. For more information, see the Policy on Occurrence Classification.

TSB investigation process

There are 3 phases to a TSB investigation

  1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
  2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
  3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

For more information, see our Investigation process page.

The TSB is an independent agency that investigates air, marine, pipeline, and rail transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.

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