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

SA4933NM

Removal of 13-gallon fuel tank and mechanical brakes, and installation of 18-gallon wing tanks and hydraulic brakes. Held by Labrie Rex N. Last revised May 15, 1990. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
American Champion Aircraft Corp.
Models
7CCM (L-16B)
Type certificate
A-759
On this site
American Champion Aircraft 7 Citabria and Champ 429 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 23, 2026.