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

ST04159CH

Upgrade of Honeywell Primus II Communications Units RCZ-8XX Transponders to support Certification of Automatic Dependent Surveillance -Broadcast (ADS-B) Out. Held by Cmd Flight Solutions LLC, which holds 3 approved modifications in all. Last revised May 31, 2024. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
328 Support Services GmbH; 328 Support Services GmbH; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Dassault Aviation; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Embraer S.A.; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; 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.
Models
328-100, 328-300, BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800B, Hawker 1000, Hawker 800, Hawker 800XP, BD-700-1A10, BD-700-1A11, CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R), Falcon 900EX, EMB-135BJ (Legacy 600), EMB-135BJ (Legacy 650), EMB-135ER, EMB-135KE, EMB-135KL, EMB-135LR, EMB-145, EMB-145EP, EMB-145ER, EMB-145LR, EMB-145MP, EMB-145MR, EMB-145XR, G-IV, GIV-X, GV-SP, GV, 45, 550, 560, 560XL, 650, 680, 750
Type certificates
A45NM, A55NM, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, T00003NY, T00003NY, A21EA, A21EA, A46EU, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, A12EA, A12EA, A12EA, A12EA, T00008WI, A22CE, A22CE, A22CE, A9NM, T00012WI, T00007WI
On this site
Bombardier BD-700 Global Express, 5000 and 6000 659 registered
Bombardier CL-600 Challenger and CRJ 1,656 registered
British Aerospace BAE 125 76 registered
Cessna 560 Citation V, Ultra, Encore and Excel 1,344 registered
Cessna 680 Citation Sovereign and Latitude 697 registered
Cessna 750 Citation X 287 registered
Dassault FALCON 900 277 registered
Dornier Luftfahrt Gmbh 328 20 registered
Embraer EMB-135 ERJ 135 and Legacy 118 registered
Embraer EMB-145 ERJ 145 313 registered
Gulfstream G-IV Gulfstream IV 357 registered
Gulfstream G-V Gulfstream V 153 registered
Gulfstream GIV-X G450 9 registered
Gulfstream GV-SP G550 7 registered
Learjet 45 433 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.