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

SA01307LA

Installation of Goddard lift kit and Goddard flap and aileron gap seal kit. STC SA460SW must be installed prior to or with this STC. Held by Airborne Research. Last revised March 4, 2002. System: flight controls.

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.
Models
PA-25-235 (Restricted Cat.), PA-25-260 (Restricted Cat.), PA-25 (Restricted Cat.), PA-25 Series (Restricted Cat.)
Type certificates
2A10, 2A10, 2A10, 2A10
On this site
Piper PA-25 Pawnee 455 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 13, 2026.