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

SA2344WE

Installation of Collins Radio Co. Model FCS-10583 autopilot flight flight director systems. Held by Collins Radio Company, which holds 51 approved modifications in all. Last revised August 20, 1971. System: flight controls.

What it applies to

Kind of product
Aircraft
Design holder
Fairchild Aircraft Corporation
Models
SA226-AT
Type certificate
A5SW
On this site
Fairchild SA226 6 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.