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

ST04186NY

Installation of the Prolink/Universal UNS1-Fw FMS, CVR, Unilink and Latitude DL-150 Iridium Transceiver to include LPV, FANS-1A, ATN-81. Held by Chicago Jet Group LLC, which holds 6 approved modifications in all. Last revised June 29, 2021. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Gulfstream Aerospace LP; Gulfstream Aerospace LP
Models
Galaxy, Gulfstream 200
Type certificates
A53NM, A53NM
On this site
Gulfstream GULFSTREAM 200 5 registered
Israel Aircraft Industries GALAXY 19 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.