system

“ This AD also requires repair of all cracking using a method approved by the FAA or The Boeing Company Organization Designation Authorization (ODA). This AD also requires sending a report of all results of the initial inspection to Boeing.”

Hmm, ODA?

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system

Like ANYONE at the FAA is going to author a procedure for repairing/replacing these assemblies…

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system

Ideally, Boeing would publish the repair procedure in a standard repair manual or in a service letter or service bulletin.

But an operator (airlines have engineering departments too) could devise a repair and get it approved by the FAA or a DER.

So you’re right, the FAA never authors a repair procedure. They review and approve such things.