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EASA Part 21 subpart J and STC

4 December 2019 @ 08:30 - 6 December 2019 @ 17:30


Introduction Part 21 subpart J and Part 21 subpart E based on the knowledge gained in the EASA / Part 21 introduction. The requirements and processes for Part 21 J approval will be explained in combination with the development process for modifications to Part 21 subpart E.

Part 21 subpart J training gives insight in the requirements that must be met in the design organisation manual related to the organisational structure, design assurance system, staff tasks and obligations, privileges and the processes to be used for the development of modifications. These developments will focus on Part 21 subpart E where the requirements for classification, selection of CS amendment level, development process from application thru certification and conflict handling in this process are addressed. Based on practice, we use case studies and role plays throughout the whole workshop.

Target audience

The seminar is intended for staff that will work in a Part 21 design organisation for the development of minor and major modifications.


Introduction to Part 21
Introduction to Part 21 J
Tasks and obligations of the Part 21 J organisation
Design Assurance System
Part 21 subpart E process (STC)
Classification of modifications
STC application and development process
Workshops on the organisational aspects and development process(workshop will be based on a mix of the actual work of the participants in their companies)


3 days

Dates and location

The seminar will be organised from 04 to 06 December 2019. The training location is Business Parc, Christoph Merian-ring 11, Reinach, Switzerland


4 December 2019 @ 08:30
6 December 2019 @ 17:30


Business Parc


Margriet Bredewold (Co-Guard GmbH) en Pieter Ruitenberg (PAR consulting, PAR)