An FAA Technical Standing Order (TSO) EASA European Technical Standing Order (ETSO) is a minimum performance standard for specified materials, parts, and appliances used on civil aircraft.

When authorized to manufacture a material, part, or appliances to a TSO/ETSO standard, this is referred to as TSO/ ETSO authorization. Receiving such an authorization is both design and production approval.

This ½ Day Training Course considers the process by which TSO/ETSO authority is issued, together with the process for certification – Where the TSOA article reflects a major change to type design, it may require a supplemental type certificate (STC) in order to approve the installation/modification data.

The USA may accept foreign-produced articles when the FAA itself has approved the design (using a Letter of Design Approval or LODA) AND the United States has signed a bilateral agreement with the foreign nation that accepts LODA designs that are produced under the foreign airworthiness authority’s manufacturing oversight.

Who is the Course for?

It is for persons who are involved in the technical management of Commercial Aircraft Maintenance Planning, Technical Engineering, Nominated personnel and other key personnel in Part 21 Design & Production Organisations, Quality Managers/ Quality Auditors and Airline CAMO Staff.

Regulators and persons interested in obtaining a detailed understanding of the Design, Certification and Production of Aircraft Parts. This course will provide an insight for both beginners to aircraft certification as well as experienced practitioners.

What is the Benefit of this Training – What will I learn?

a) Awareness of the structure composition and impact of FAA & EASA TSO/ ETSO’s

b) Understanding Organisational Roles and Responsibilities Compliant with TSO / ETSO Management & oversight

c) Understand the environment driving the TSOA / Part 21 process to focus your business decisions

d) Confidence in a detailed knowledge of the key components of Component Certification

e) To consider the Oversight of Maintenance Activities related to TSO ETSO OEM Parts management

Why Should I choose SAS for the training?

Sofema Aviation Services a Regulatory training and consulting company with 45 years commercial aviation experience and 10 years operational experience. Since we started we have provided certificates to approx 15,000 delegates we have grown for 2 primary reasons!

The first is that we are professional and we listen to our customers. Please visit our download area as an example of how we engage with our customer Download Area.

The second is not only the fact that our prices are far more cost effective than our competitors it is that our discount program leaves all the others way behind – please do not take our word for it check it out! SAS Discount Program

What Makes FAA & EASA TSO & ETSO training course ½ Day Training Different?

Because our courses are written by people who have lived through the regulations. The author of the training material has more than 25 years’ experience as an auditor across the entire regulatory spectrum.

At Sofema Aviation Services our focus is on accepting that compliance with Regulations is in fact minimum compliance. Interpreting the regulations in a way which enables the development and optimisation of our business is where we should see opportunity to drive efficiencies and cost saving.


Detailed Content / Topics – The following Subjects will be addressed

– TSO / ETSO Introduction
– Abbreviations
– The beginning of EASA / FAA Joint Certification
– Certification and Approval Process FAA Introduction
– Certification and Approval Process FAA TSO / LODA
– Certification and Approval Process EASA ETSO
– Certification Alternative Procedures
– Repairs as applicable to TSO / ETSO Articles.
– Bilateral Acceptance of EASA / FAA ETSO/ TSO Articles


It is not necessary to have prior knowledge to participate in this training, however a basic CAMO awareness / knowledge is assumed.

Learning Objectives

A basic understanding of Aviation Certification related to Certification

A thorough understanding of the associated terminology and procedures including changes to Type Design, Component Certification, Supplementary Type Certificates (STC) (modifications) and repairs.

This training is intended to focus on the essential elements to provide a comprehensive understanding of the TSO / ETSO Process


1/ 2 Days AM or PM

Sofema Aviation Services offers a flexible approach to developing all in-company training courses which are specific to the client’s needs. If you would like additional information concerning how course content may be configured to be more appropriate for your organisation please email office@sassofia.com

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