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

SA01756NY

Installation of Cessna Main Landing Gear Legs P/N 0741001-1 through-8 and 054118-2 though -3. Held by International Cessna 170 Association, which holds 3 approved modifications in all. Last revised June 5, 2014. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company
Models
170, 170A, 170B, 180
Type certificates
A-799, A-799, A-799, 5A6
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 22, 2026.