Sofema Aviation Services (SAS) is pleased to announce an upcoming webinar designed to guide aviation professionals through the complexities of EASA Part 21 Subpart G (Production) and Subpart J (Design) regulations.
Join us for an interactive live webinar workshop on Tuesday, 10 February, from 10:30 am to 13:00 (Sofia, Bulgaria time).
Register here
In this article, Sofema Aviation Services (SAS) considers in depth the relationship between a Part 21G organisation and a Part 21J organisation, how to create a new business and gain a Part 21G certificate. How to proceed if the Part 21G does not have a 21J partner.
21G ↔ 21J: Roles & Responsibilities
The synergy between these two approvals ensures that what is manufactured is exactly what was engineered and flight-tested.
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21J (Design Organisation Approval – DOA): Acts as the “brain.” It owns the approved design data (TCs, STCs, Repairs) and manages continued airworthiness.
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21G (Production Organisation Approval – POA): Acts as the “hands.” It demonstrates conformity to that data and issues the final release (EASA Form 1 or Form 52).
EASA explicitly requires satisfactory coordination between design and production (DOA↔POA). This is codified in 21.A.4 and 21.A.133 with AMCs that describe the documented arrangement linking you (POA) to the design approval holder (DAH).
If you do not have a 21J partner, what can you manufacture?
Without a DOA of your own (21J) or a documented arrangement with a design approval holder (TC/STC/ETSO/repair approval holder), a 21G cannot show conformity to approved design data for most aviation parts, so you cannot release them on EASA Form 1 under 21.G. You still have these options:
>> Standard parts (per AMC 21.A.303(c))
>> Build-to-print for a DAH under a documented arrangement
>> Subpart F (Letter of Agreement) as a stepping stone
>> ETSO route (Subpart O)
To Issue EASA Form 1
To issue Form 1 for anything other than standard parts (or narrowly exempted cases), a 21G must be linked to the design holder via 21.A.133(d) documented arrangements- or be the design holder.
Step-by-step: How to gain a 21G approval (POA)
- Step 1 – Define your scope & sourcing of design data
- Step 2 – Apply (21.A.134) and plan the means of compliance
- Step 3 – Put in place the DOA–POA arrangement (21.A.133(d))
- Step 4 – Build your Production Management System (21.A.139)
- Step 5 – Develop your POE (21.A.143)
- Step 6 – Prove Resources & Competence (21.A.145)
- Step 7 – Inspection, testing & conformity processes (21.A.126–21.A.130)
- Step 8 – Define Privileges sought (21.A.163)
- Step 9 – Understand Obligations (21.A.165) and Validity (21.A.159)
- Step 10 – Approval & Terms of Approval (21.A.151)
- Step 11 – Manage changes (21.A.147 / 21.A.148 / 21.A.153)
Typical issues & challenges (and how to avoid them)
>> Design link gaps
>> Form 1 eligibility mistakes
>> Supplier control & traceability
>> Non-conformances & concessions
>> Keeping the approval valid
>> Best-practice blueprint (what great looks like)
To learn more on the topic: Join Mr. Steven Bentley, CEO of Sofema, speaker, on Tuesday, 10th February, to clarify your path to approval and ensure your organisation is built on a solid, compliant foundation.
Register here
About Sofema
Sofema Aviation Services (SAS) and Sofema Online (SOL) deliver high-level regulatory training. Over the years, we have helped thousands of aviation professionals gain a deep understanding of both the regulatory environment and competence-building vocational training. We have issued over 100,000 course completion certificates to our delegates. Explore over 1,000 Classroom & Online Training Courses Currently Available.
Tags:
Design Organisation Approval (DOA), Production Organisation Approval (POA), webinar, EASA Form 1, Sofema Online (SOL), Sofema Aviation Services (SAS), EASA Part 21J, Subpart F, EASA Part 21G, 10th February, Part 21 Subpart G (Production), Part 21 Subpart J (Design), EASA Form 52, Subpart O, Steven Bentley
