505 - 01/07 - Lifeboat release gear mechanism - Worldwide

Loss Prevention Bulletin 489 (issued September 2006) detailed a lifeboat drill incident that unfortunately resulted in the death of one of the crew members on board. After the incident the lifeboat was brought to the Transportation Safety Board (TSB) Engineering Branch laboratory for examination. The davit launch gravity type enclosed lifeboat was found to be fitted with a SRS-37 type release gear mechanism manufactured in 2001 by Shigi Shipbuilding Co., Ltd.

The examination has revealed that although the release handle was secured, i.e. the safety pin inserted, the release gear mechanisms were not fully reset. As a result, the hooks were not locked in place prior to the recovery of the lifeboat. The design of the SRS-37 type release gear mechanism made it such that it is possible to secure the release handle in the closed position without the hook being properly reset, hence giving the crew members a false sense of security.

The SRS-37 type release mechanism has been out of production for many years and an improved design has been produced since. However, according to the manufacturer, approximately 500 lifeboats with this type of release gear mechanism were fitted on ships operating worldwide.

Transport Canada are making recommendations to Port State Control Authorities that inspections should be undertaken on all ships equipped with the SRS-37 type release gear mechanisms and that the ability of the ship’s crew to safely operate the release mechanism be verified accordingly.


Source of information: 

Jana N. Byron 

Thomas Miller (Americas) Inc.

New Jersey, USA

Tel: +1 201-557-7433

Email:  jana.byron@thomasmiller.com

Industry developments

Polar Shipping

Legal, navigational and environmental resources, news and updates on the development of polar shipping. Read more

US VRP Compliance

With effect from 30th January 2014 non-tank as well as tankships calling at US ports will be required to submit VRPs.  For Club and other resources to assist in compliance click here

International Environmental compliance

Environmental Compliance resource page collates material in respect of International environmental compliance issues affecting our Members. Information from the Club, Loss Prevention and external resources has been collated in one place for ease of reference.

MLC 2006

The Maritime Labour Convention enters into force in August 2013 - resources, news & advice on implementation can be found in this dedicated section.  READ MORE

International sanctions

Recent guidance & corresponding material in respect of international sanctions against various countries has been updated with respect to temporary easing of sanctions against Iran.  READ MORE


Essential precautions and preparation against piracy, as well as additional information and resources, loss prevention advisories and useful external web links

Emergency Contacts

If you need to call our offices out of hours and at weekends, click After Office hours for a up to date list of the names of the Duty Executives and their mobile phone numbers. 

Ship Finder

This Ship Finder is updated on a daily basis. Members who need to advise the Club of updates to their recorded ships' details should advise their usual underwriting contact.