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

ST00934DE

Installation of Becker Avionics BXT6553 transponder. Held by Peregrine, which holds 43 approved modifications in all. Last revised June 6, 2019. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Bombardier Inc.; Bombardier Inc.; Dassault Aviation; Embraer S.A.; Embraer S.A.; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Learjet Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R), Falcon 900EX, EMB-135BJ (Legacy 600), EMB-135BJ (Legacy 650), G-IV, GIV-X, 45, 550, 560, 560XL, 650, 680, 750, BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A (C-29A), BAe.125 Series 800A (U-125), BAe.125 Series 800A, BAe.125 Series 800B, Hawker 1000, Hawker 800 (U-125A), Hawker 800, Hawker 800XP
Type certificates
A21EA, A21EA, A46EU, T00011AT, T00011AT, A12EA, A12EA, T00008WI, A22CE, A22CE, A22CE, A9NM, T00012WI, T00007WI, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU
On this site
Bombardier CL-600 Challenger and CRJ 1,657 registered
British Aerospace BAE 125 76 registered
Cessna 560 Citation V, Ultra, Encore and Excel 1,341 registered
Cessna 680 Citation Sovereign and Latitude 694 registered
Cessna 750 Citation X 287 registered
Dassault FALCON 900 277 registered
Embraer EMB-135 ERJ 135 and Legacy 119 registered
Gulfstream G-IV Gulfstream IV 360 registered
Gulfstream GIV-X G450 9 registered
Learjet 45 433 registered
Raytheon Corporate Jets Inc HAWKER 1000 8 registered
Raytheon Corporate Jets Inc HAWKER 800 33 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.