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

SA2694CE

Installation of manually controlled engine induction alternate air heat system. Held by Webco Aircraft CO, which holds 5 approved modifications in all. Last revised February 22, 1991. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
The New Piper Aircraft Inc.
Models
PA-24-260
Type certificate
1A15
On this site
Piper PA-24 Comanche 2,428 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 9, 2026.