SA3-356

Installation of Wipaire Skis Model C-2200 main ski and Model AWT-2500 or AWT-2500A tail wheel skis. Held by F.Atlee Dodge Aircraft Services, which holds 45 approved modifications in all. Last revised February 9, 2023. System: landing gear.

What it applies to

Kind of product: Aircraft
Design holder: The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.
Models: J3P, J3C-40, J3C-50, PA-11, PA-11S, J3C-65S, J3C-65, J3C-50S, J3F-60, J3F-50, J3F-50S, J3F-65 (Army L-4D), J3F-60S, J3F-65S, J3L-65S, J3L, J3L-S, J3L-65 (Army L-4C)
Type certificates: 695, A-691, A-691, A-691, A-691, A-691, A-691, A-691, A-692, A-692, A-692, A-692, A-692, A-692, A-698, A-698, A-698, A-698
On this site: Piper J-3 Cub 3,806 registered
Piper PA-11 Cub Special 443 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 5, 2026.