FAA & EASA Relationship and Supplemental Type Certificate (STC) Considerations

Existing between FAA & EASA is a Bi Lateral agreement which includes STC Certifications

The FAA was created in 1958 with the need to take control of aviation safety. With sole control of Aviation Rule Making including Air Navigation and Air Traffic Control.

EASA origins started later In July of 2002, when the members of the European Union (EU) established the European Aviation Safety Agency (EASA). This agencies power is legally enforceable in all European Union member states.

Legally enforceable standardization and oversight function for all aviation safety certification of member states was a primary reason for the formation of EASA.

EASA has responsibility for certification and oversight of all civil aviation products of European member countries with the small exception of localized historically relevant aircraft identified as annex 2

The U.S./EU Agreement covers more areas than bilateral agreements the U.S. has with other countries. It is a three tiered agreement.

The highest tier is the Executive Agreement, which provides the framework for all cooperation between the U.S. and the EU in the area of aviation safety.

The second tier is the annexes. Annex 1 covers airworthiness and environmental certification, and Annex 2 covers maintenance. Additional annexes are currently being negotiated. The annexes cover the scope of acceptance between the United States and each EU Member State.

The third tier is the procedures and guidance material. The document supporting Annex 1 is called the Technical Implementation Procedures (TIP). This document is approved by the FAA and EASA.

Transfer of STC to Companies Outside the U.S. An FAA STC can only be transferred (and reissued) to a person or company outside the U.S., if there is a bilateral agreement in place with that country and the bilateral agreement includes provisions for transferring STCs.

The bilateral agreement provides for transferring the associated State of Design responsibilities between the FAA and the other civil aviation authority. You should contact your local FAA Aircraft Certification Office (ACO) for additional guidance well before finalizing your business negotiations.

Installing Foreign STC on U.S. Registered Aircraft – The FAA must validate the foreign STC before it can be installed on a United States-registered aircraft. The FAA will only validate a foreign STC if there is a bilateral agreement in place with the country that issued the STC, and it includes provisions for FAA acceptance of STCs for that specific category of aircraft, engine or propeller.

The owner of the foreign STC may then apply for an FAA STC.

If there is no Bilateral Agreement in place, the U.S. will not issue an FAA STC 

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