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

SA09764DS

Installation of an S-TEC 01326 Digital Flight Control System (DFCS). Held by S-Tec Corporation, which holds 1,083 approved modifications in all. Last revised March 31, 2021. System: flight controls.

What it applies to

Kind of product
Aircraft
Design holder
Aerostar Aircraft Corporation; Aerostar Aircraft Corporation; Aerostar Aircraft Corporation; Aerostar Aircraft Corporation
Models
PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P), PA-60-602P (Aerostar 602P)
Type certificates
A17WE, A17WE, A17WE, A17WE
On this site
Piper PA-60 Aerostar 57 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.