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

SA02319AK-D

Fabrication and installation of F. Atlee Dodge p/n 180VBE Windshield V-Brace. Held by F. Atlee Dodge Aircraft Services, LLC, which holds 14 approved modifications in all. Last revised June 23, 2017. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Textron Aviation Inc.; Textron Aviation Inc.
Models
180, 180A, 180B, 170A, 170B
Type certificates
5A6, 5A6, 5A6, A-799, A-799
On this site
Cessna 170 2,085 registered
Cessna 180 Skywagon 2,605 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 21, 2026.