What is an STC?

"STC" is the acronym for Supplemental Type Certificate. Major modifications need to be approved by the Civil Aviation Authority (CAA), and an STC is an CAA-approved engineering data package that details a specific installation in a specific airframe. STCs are required for many installations to certify the alteration in accordance with the requirements of the design of the aircraft. 

If you need an installation or a change to existing installations that constitutes a major change, DFE can serve you by either using an existing approval or developing af new STC.

Using the list on this page you can search for approved modifications.

Download STC list (pdf)