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

SA5431SW

Installation of brake assemblies 5001445-4(LH) and 5001446-4 (RH). Held by Executive Jet Works, INC. Last revised May 20, 1983. System: landing gear.

What it applies to

Kind of product
Aircraft
Design holder
Textron Aviation Inc.; Textron Aviation Inc.
Models
500, 501
Type certificates
A22CE, A27CE
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 21, 2026.