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

ST01053CH-D

Installation of an ARTEX 110-406 NAV Emergency Locator Transmitter. Held by Garrett Aviation Services, which holds 185 approved modifications in all. Last revised June 1, 2000. System: emergency equipment.

What it applies to

Kind of product
Aircraft
Design holder
Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
Models
BH.125 Series 600A, BAe.125 Series 800A (C-29A; U-125), Bae.125 Series 1000A, DH.125 Series 1A-522, BH.125 Series 400A, Hawker 800XP, Hawker 800, DH.125 Series 1A, HS.125 Series 700A, HS.125 Series 600A, DH.125 Series 400A, DH.125 Series 3A/RA, DH.125 Series 1A/S-522, DH.125 Series 3A/R, DH.125 Series 3A, DH.125 Series 1A/R-522, Hawker 1000
Type certificates
A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU
On this site
British Aerospace BAE 125 76 registered
Hawker Siddeley HS.125 SERIES 700A 7 registered
Raytheon Aircraft Company HAWKER 800 251 registered
Raytheon Corporate Jets Inc HAWKER 1000 8 registered
Raytheon Corporate Jets Inc HAWKER 800 32 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.