EASA Part 21 Subpart J – DOA - Here is my understanding of the DOA

[flopal]

Hi All,

Here is my understanding of the DOA, please correct me if i'm wrong and add your info!
I think it would be nice to have a EASA section just as the FAA has one...

For a new company wishing to obtain a DOA & TC

Example of differences between the DOA and AS/EN 9100

DOA Design Organisation Approval

• The DOA is a "must have"

• The DOA does not deal with customer or production issues but mainly design issues in order to obtain a safe product.

• Addresses the applicable statutory and regulatory requirements

AS/EN 9100

• AS/EN 9100 is a "nice to have"

• AS/EN 9100 deals with customer, design, production and applicable statutory and regulatory requirements (but does not address them in detail )

Obtaining a DOA, a TC, when…

The process of obtaining the DOA should be started prior to the process of obtaining a Type Certificate with the Agency. Since the DOA is used to obtain a TC, a TC procedure should be started soon after with the Agency.
A full fledged DOA cannot be obtained from the Agency prior to obtaining a Type Certificate from the Agency.
Why?

Because some of the procedures required for the DOA cannot be audited by the Agency prior to obtaining a TC, these procedures include:

• Procedure for the Classification of Major/ Minor Change
• Procedure for the Approval of Major Change by the Agency
• Procedure for the Approval of Minor under the DOA
• …

But a restricted DOA can be issued by the Agency and updated at each audit prior to obtaining a full fledged DOA.

...

[Coury Ferguson]

Can anyone provide insight on this?

[BadgerMan]

Maybe we can get some more exposure if we move the thread to the FAA page.

[Angelika]

Flopal, here is my point of view:

For a new company wishing to obtain a DOA & TC

Example of differences between the DOA and AS/EN 9100

DOA Design Organisation Approval

* The DOA is a "must have" if you want to obtain one of the privileges i.a.w. 21A.263

* The DOA does not deal with customer or production issues but mainly design issues in order to obtain a safe product. I agree, however 21A.4 - connection between DO/PO must be shown

* Addresses the applicable statutory and regulatory requirementsI agree



AS/EN 9100

* AS/EN 9100 is a "nice to have" more or less except if your customers require you to obtain it

* AS/EN 9100 deals with customer, design, production and applicable statutory and regulatory requirements (but does not address them in detail )I agree

Obtaining a DOA, a TC, when…

The process of obtaining the DOA should be started prior to the process of obtaining a Type Certificate with the Agency. Since the DOA is used to obtain a TC, a TC procedure should be started soon after with the Agency.
A full fledged DOA cannot be obtained from the Agency prior to obtaining a Type Certificate from the Agency.
Why?

Because some of the procedures required for the DOA cannot be audited by the Agency prior to obtaining a TC, these procedures include:

* Procedure for the Classification of Major/ Minor Change
* Procedure for the Approval of Major Change by the Agency
* Procedure for the Approval of Minor under the DOA
* …
I assume the Agency requires the TC-holder to do the TC in parallel with the DOA-process to see if the procedures (see above) are adequate for the intended purpose.

But a restricted DOA can be issued by the Agency and updated at each audit prior to obtaining a full fledged DOA.
Yes, the Agency may issue Design Organisation Approvals with limitations to enable the DOA to start working. A DOA may - for example - be limited to minor changes or repairs to TC's/STC's or the privilege to approve editorial changes to the AFM/AFM-Supplement may not be granted and so on. These limitations may be abolished once the Agency has been convinced of the Design Organisation's abilities.

Hope this helps.

Happy New Year!

Angelika

[Namviator]

Hello Everyone

I am doing a research on the Economic and Technical perspective of obtaining and maintaining an EASA DOA , for my internship.

I have got the part on the EASA website about the cost of application and what I still need so far is the cost of maintaining the DOA for example the cost of Employing the CVE's, the cost of the Audits and so on.

And should there be any further clarification or additions you think I should include please feel free.

I have been trying to locate the EASA's Internal Certification Working Procedures for the DOA, I have tried the website here but cant locate it.

their website to nor avail

Any clues at all from anyone?

[star_cgh]

Hi Namviator

As the word "internal" implied, their internal procedure within EASA may not publish. But you can see the expectation required of an applicant DOA under 21B.xxx.

21A.xxx is the applicant required to do.
21B.xxx is the expectation of EASA.

Hope this helps.

[Namviator]

Hi Star

I thank you very much on that regard

On 25 January 2005 a Decision of the Executive Director - ED Decision 2005/01/CF was taken establishing the Agency's Internal Certification Working Procedures that they be published, and following that decision, they were published on the EASA site, its a pity due to the rules of the chat as am still new, not allowed to post a link but could have done.

I can probably do with a DO handbook example for now.


Thanks

[Angelika]

Hi Namviator,

I tried to send you the following answer to your private mail, however, I got an error report, therefore I put my answer for you into this thread.

I very well remember that the Internal Working Procedures were published on the EASA website. At the moment, however, I do not suceed in finding them either. Either they have been removed from the website or they are at a "hidden" place where one would not expect to find them. What did you want to find out by checking these internal EASA working procedures? If it is about the approval procedure of a DOA, I will certainly be able to give you some information since I supported around a dozen companies in obtaining this approval. Just let me know if I can be of any further help to you. Best regards, Angelika