The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · amended

SA00795SE

Installation of vortex generators on the wings and tail surfaces of the above model aircraft in accordance with Drawing Package MA2131, Revision A, dated April 22, 2001, and Installation Manual MA2132, Revision A, dated April 22, 2001, or later FAA approved revision of either of these documents. NOTE: If more than five vortex generators are damaged or missing, the aircraft is not airworthy. Held by Micro Aerodynamics INC, which holds 77 approved modifications in all. Last revised July 19, 2001. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.
Models
7GCBA, 7KCAB, 7KC, 7JC, 7HC, 7GCBC, 7GCAA, 7GCA, 7GC, 7GCB, 7ECA, 8KCAB, 8GCBC
Type certificates
A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A-759, A21CE, A21CE
On this site
American Champion Aircraft 7 Citabria and Champ 429 registered
American Champion Aircraft 8 Decathlon and Scout 668 registered
Champion 7 Citabria and Champ 1,452 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 7, 2026.