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

SA7NW

Installation of Continental C-85-8, -8F, -12, -12F engine and Sensenich M74CK propeller or McCauley1A90CF or 1B90CM propeller. Held by Coleman T. Wagner, which holds 3 approved modifications in all. Last revised July 8, 2009. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Aeronca Aircraft Corporation; Aeronca Aircraft Corporation; Aeronca Aircraft Corporation; Aeronca Aircraft Corporation
Models
65-TAC (Army L-3E), 65-TC (Army L-3J), O-58B (Army L-3C), O-58B (Army L-3B)
Type certificates
A-728, A-728, A-751, A-751
On this site
Aeronca 65 Chief and Super Chief 377 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 22, 2026.