The DERs were reminded that the FAA expects that States will exercise their international responsiblities as States of Registry, Operator, etc. But, more on that later. To learn what our DER friend was talking about, I searched the document for the word repair. I found . . . . It explained this . . . .
Repairs restore an unairworthy aircraft to airworthy condition.
The document did not address Repair Approval on STC d, PMA d or TSO d items installed on foreign registered aircraft. At least one manufacturer has stated the operator is responsible for obtaining appropriate regulatory agency approval before incorporating the service bulletin. As noted above the document states . . . . This statement is incomplete and perhaps misleading. The ICAO adopted the requirements related to continuing airworthiness information in 1974.