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

SA03302AT

Installation of Societé de Motorisations Aéronautiques (SMA) Aircraft Diesel Engine model SR305-230-1 (or SR305-230 converted to model SR305-230-1 by incorporation of SMA Service Bulletin SB-01-76-002) and MT-Propeller model MTV-9-BS/198-58B propeller and other minor modification. Held by Sma Aero Engines GMBH (Germany). Last revised July 1, 2021. System: propeller.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.; Textron Aviation Inc.
Models
182Q, 182R
Type certificates
3A13, 3A13
On this site
Cessna 182 Skylane 11,832 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 19, 2026.