A “type certificate” is the way the FAA approves the design of an aircraft propeller or other major aviation-related product. A type certificate authorizes a manufacturer to make the product in the specific way covered by the certificate. If the manufacturer wants to make a major change to the design of the product, approval from FAA must be obtained. In these cases, the FAA issues a “supplemental” or “amended” type certificate. To look up a specific Type Certificate for your aircraft, they are available at the FAA website at the address below: Hold down the control key and hit the following link:
http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/MainFrame?OpenFrameSet
