Part 21 Subpart J - Understanding & Optimising your Design Organisation Approval (DOA)

TR24M01 | 2 days

Managing a busy design organisation is a constant challenge, and regulatory requirements are often perceived to add to the burden. Part 21 was created to help boost the competitiveness of the aviation industry by promoting efficient regulatory and certification processes and lowering industry certification liaison effort. So, even though you are generating a compliant design, how well do you perform its execution? How does the regulation interface with your existing design management system and how can you ensure your DOA will deliver value to your organisation?

Upcoming Training

14 Jan - 15 Jan 2025

Virtual Classroom

£945.00 (excl. VAT)

03 Apr - 04 Apr 2025

Virtual Classroom

£945.00 (excl. VAT)

03 Jul - 04 Jul 2025

Bracknell Academy

£945.00 (excl. VAT)

15 Sep - 16 Sep 2025

Virtual Classroom

£945.00 (excl. VAT)

24 Nov - 25 Nov 2025

Virtual Classroom

£945.00 (excl. VAT)

In-Company Training

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Delivered exclusively for your company

How will this course benefit me?

This two-day course takes a practical approach to the EASA Part 21 Subpart J regulation, providing the necessary insight to (a) ensure your organisation is fully compliant to obtain and maintain approval, and (b) to ensure the intelligent adoption of the regulatory intent without adding any unnecessary bureaucracy which could stifle innovation and creativity that is so essential for design engineers.

Using industry experience and examples of best practice, you will explore the key features of the Part 21 Subpart J regulation so that you will not only be able to ensure your organisation is fully compliant, but also that compliance is achieved with minimum disruption to the existing design management system (assuming it is performing in the first place).

Completing this course will:

• Increase your organisation’s levels of compliance by ensuring you are familiar with the rules
• Allow your organisation to not only be compliant, but know how to optimise performance
• Minimise risk to you and your organisation through unwitting non-compliance
• Increase your confidence to engage and discuss the regulation with regulatory authority staff
• Create a design and airworthiness philosophy to proactively consider safety and certification


Key areas of focus

• The international legal environment - ICAO, EASA, relationship with other competent authorities, etc. (including the high level impact of Brexit on UK-EU interfacing organisations)
• Familiarisation with the EU Regulation(s) containing Part 21 and how to manage amendments
• The reasoning behind Part 21, from both organisational and regulatory perspectives and a summary of all Part 21 
Subparts to put Subpart J in context
• Detailed review of Part 21 Subpart J with particular focus on the Design Assurance element, the Safety Management element and how to capture this in the Design Organisation 
• Handbook and supporting procedures
• Review the Safety Management element in Part 21 - Including Safety Risk Management, Safety Assurance, and the concept of ‘organisational safety’

Note: For the FTOM, it does not apply to all Design Organisations, so see TR24M10 instead


Is this course right for me?
This practitioner level course is specifically designed for Design Organisations who hold (or intend to hold) approval for TC, STC, ETSO and Major Repairs or who want to self-approve Minor changes and repairs. There are no prerequisites for this course and no specific prior knowledge regarding EASA is required. Individuals in the following positions would benefit from a comprehensive understanding on how Subpart J influences their daily responsibilities: 

• Head of Design; Safety Manager
• Office of Airworthiness (incl. Certification Managers) 
• Compliance Verification Engineers
• Independent System Monitors (incl. Quality Assurance)
• Design Managers and Team Leaders; Design and Test personnel preparing qualification data
• Graduates, newly appointed into aviation / Part 21 environment
This course would also benefit:

• National Aviation Authority Managers, including from Military Airworthiness Authorities who are adopting EMAR 21 
• Accountable Managers, who are ultimately accountable for DOA risk and performance 
• Programme Managers responsible for scheduling design activities


Prerequisites
Design Organisation experience desirable.



Course details
Course format
: This course is a balanced mix of group discussions, flipchart work and PowerPoint presentations. Managed syndicate exercises give you the opportunity to practise the application and evaluation of new processes and techniques.
Course level: Practitioner Level Training (P) is suitable for those who have worked in the subject for some time, are familiar with core terminologies and concepts and are looking to develop or update their level of knowledge and practical understanding.
Assessment process: No formal assessment. Formative feedback is provided by the facilitator.
Course size: 16 persons maximum at our Aviation Safety Academy or on-site at your facility, 12 persons virtually.

Frequently asked questions

I see that this course and TR24M17 both cover the roles and responsibilities of CVEs. What’s the difference between them?

This course gives you a thorough overview of the requirements of the Part 21 Subpart J regulation and 
considers how it influences a CVE’s daily responsibilities. Our TR24M17 course focuses entirely on the role of a CVE in the Design Management System and goes into far more detail into how to design for compliance.