EN 9136:2018

Aerospace series - Root cause analysis and problem solving (9S Methodology)

Publication date:   Nov 14, 2018

General information

60.60 Standard published   May 16, 2018


ASD-STAN Aerospace

European Norm

03.120.10   Quality management and quality assurance | 49.020   Aircraft and space vehicles in general



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1.1 General
The objective of any organization, as part of continual improvement, is to reduce the number of issues (i.e. undesirable conditions, defects, failures) and to minimize their impact on quality, delivery performance, and cost.
This includes having processes in place to detect and eradicate significant and recurrent issues, which implies having well identified problems, a common understanding of their impact and associated root causes, and having defined and implemented adequate actions so that these problems, including similar issues will not happen again.
1.2 Purpose
Propose a methodology to improve the way escapes and issues are managed, including communication between all parties [e.g. engineering, Materials Review Board (MRB), manufacturing, manufacturing engineering, supplier, customer] to reduce their impact, contain them as far upstream as possible, and prevent recurrence (i.e. ensure the right measures are taken at the right location and at the right time).

Life cycle


EN 9136:2018
60.60 Standard published
May 16, 2018