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

SA1487GL

Fabricate and install engine mount to accept Continental Aircraft engine O-200 rated at 100 H.P. at 2750 RPM. Held by Classic Aircraft Services INC, which holds 6 approved modifications in all. Last revised October 23, 2004. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
The New Piper Aircraft Inc.
Models
J3C-65
Type certificate
A-691
On this site
Piper J-3 Cub 3,804 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 20, 2026.