AS9100C 2009 Plain English Introduction

AS9100C is now OBSOLETE. Please see our Introduction to AS9100D.


AS9100C was prepared by the International Aerospace
Quality Group (IAQG)
. IAQG was established by industry to
improve quality and reduce costs. It is a global cooperative
organization and is supported by companies throughout the
aviation, space, and defense industries. Currently, IAQG has 67
active signatories and sponsors including Airbus, BAE Systems,
Bell Aerospace, Bell Helicopter, Boeing, Bombardier Aerospace,
GE Aerospace, Goodrich, Gulfstream, Honeywell, Lockheed
Martin, Northrop Grumman, Raytheon, Rockwell Collins,
Rolls-Royce, and United Technologies. Consequently,
AS9100 has broad corporate support.

For a complete list of members see the IAQG website at IAQG members come from
the Americas, Europe, and the Asia Pacific region.


This standard is designed to be used by firms in the aviation,
space, and defense industries and can be applied throughout the
supply chain. It is intended for use by organizations that design,
develop, and produce aviation, space, and defense products. It is
also intended for use by organizations that provide post-delivery
support. This includes those that provide maintenance,
materials, or spare parts for their own products.

The 2009 (third) edition of the AS9100 standard was published
with identical content by three IAQG supporters:

  1. SAE in the United States for the Americas,
  2. ASD-STAN for Europe, Russia, and Africa,
  3. SJAC in Japan for the Asia-Pacific region.

Each organization refers to the standard in a different way.
SAE refers to it as AS9100C because it is edition C (the third
edition), ASD-STAN refers to it as prEN9100:2009 (because it was
published in 2009), while SJAC refers to it as JIS Q 9100:2009

And to further complicate things, IAQG refers to it simply as
9100:2009. They all refer to exactly the same standard. The
content is exactly the same. They’re identical. Consistent with
common practice, we’ve chosen to refer to this standard as
AS9100:2009 or simply as AS9100C.

AS9100C is based on the ISO 9001:2008 quality management
standard. Both standards are organized in the same way and
use the same numbering system. The following simple formula
summarizes how AS9100C and ISO 9001:2008 are related:

AS9100C = ISO 9001 requirements + AS&D requirements

AS&D stands for Aviation, Space, and Defense.

While AS9100 is intended for the aviation, space, and defense
industries, it can also be used in other industries. Use it if your
organization or operation provides aviation and military product
maintenance and repair services or if it procures products and
resells or distributes them to customers in the aviation, space,
and defense industries.

ISO 9001:2008

ISO 9001 is a quality management standard. It was first published
in 1987, updated in 1994, and again in 2000. The current version
was officially published on November 15, 2008 and is the fourth
edition of the ISO 9001 standard. It cancels and replaces all
previous editions.

ISO 9001:2008 (and AS9100C:2009) defines a set of quality
management requirements. These requirements are specified
in Parts 4, 5, 6, 7, and 8. The purpose of ISO 9001 (and AS9100)
is to help organizations to establish and maintain a quality
management system (QMS) that complies with these


Part 1.2 of ISO 9001 (and therefore, AS9100) says that you may
exclude or ignore some requirements if you can justify doing so.
Requirements that may be ignored are known as exclusions. You
may exclude selected Part 7 product realization requirements as
long as you meet certain conditions.

You may exclude selected Part 7 requirements if you cannot
apply them because of the nature of your organization or
because of the nature of your products. However, you may
exclude a requirement only if doing so does not undermine
your ability or willingness to meet the requirements set by
customers and regulators or imposed by statute.

In other words, you may not ignore any Part 7 requirement if
doing so will undermine your ability to provide products or
services that meet requirements or compromise your willingness
to accept the responsibility to do so. If you exclude requirements
that should not be excluded, you may not claim to comply with
the AS9100 standard.

Whenever you decide to exclude a Part 7 requirement make
sure that you’ve got a good reason. Make sure that you can
justify why you’ve excluded it, and make sure that this
justification appears in your quality manual.


Plain English Aerospace QMS Definitions

Overview of Quality Management Standard

AS9100C Standard Translated into Plain English

How to Upgrade to the new Aerospace QMS Standard

Aerospace Quality Management Gap Analysis Tool

Aerospace Quality Management Audit Program

Our Plain English Approach

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Updated on August 24, 2017. First published on August 31, 2009.

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