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Control Change Cause
Analysis (2002)
Brief description
3CA is a method of root cause analysis, designed to assist the
investigation of accidents of any type. It assists the
investigator to identify significant episodes
within an accident and to structure inquiries into the reasons
underlying them.
Development
3CA has its origins in a co-operative project run by
Humber Chemical Focus and the UK Health & Safety Executive
in 2000. 3CA was produced in response to a
need for a root cause tool that was quick to learn,
systematic, transparent and which produces
results that are easy to communicate.
Download 3CA Manual
(NRI-3, December 2002,
ISBN 90-77284-03-6)[PDF
284k], version date 30 May 2005
 Download draft version of 2nd
Edition (version 2.5, date 12 April 2008). In this new edition of the
manual, the headings have been changed to simplify use and encourage the
analyst to consider underlying causes.
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