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

SA2608NM

Installation of a Lycoming A10-360-A1B engine and a Hartzell HCC2YK-4CF/FC7666A-2 propeller. Held by Soper Steve. Last revised April 22, 1986. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
American Champion Aircraft Corp.
Models
8KCAB
Type certificate
A21CE
On this site
American Champion Aircraft 8 Decathlon and Scout 669 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 20, 2026.