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

ST00235WI

Modification of a single Collins AMS-850 Avionics Management System. Held by Hawker Beechcraft Corporation, which holds 23 approved modifications in all. Last revised March 26, 2007. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Hawker Beechcraft Corporation
Models
400A
Type certificate
A16SW
On this site
Beechcraft 400 Beechjet 311 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 7, 2026.