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

SA02189AK

Fabrication and installation of p/n 3344 main landing gear safety cable kit for 3-inch extended main landing gear. Applies only to planes modified by installation of 3-inch extended main landing gear per STCs SA02152AK or SA02175AK. Held by F Atlee Dodge Aircraft Service, which holds 101 approved modifications in all. Last revised January 11, 2002. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.
Models
PA-18-105 (Special), PA-18-125 (Army L-21A), PA-18-135, PA-18-150, PA-18, PA-18A-135, PA-18A-150, PA-18A, PA-18AS-125, PA-18AS-135, PA-18AS-150, PA-18S-105 (Special), PA-18S-125, PA-18S-135, PA-18S-150, PA-18S
Type certificates
1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2, 1A2
On this site
Piper PA-18 Super Cub 3,621 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 8, 2026.