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

ST00098IB

Introduction of ADS-B Out. Held by Stc Twenty One Limited (United Kingdom), which holds 8 approved modifications in all. Last revised February 22, 2023. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; Airbus SAS; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; ATR - GIE Avions de Transport R gional; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; BAE Systems (Operations) Limited; British Aerospace Regional Aircraft; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; MHI RJ Aviation ULC; MHI RJ Aviation ULC; MHI RJ Aviation ULC; MHI RJ Aviation ULC; MHI RJ Aviation ULC; MHI RJ Aviation ULC; MHI RJ Aviation ULC; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; De Havilland Aircraft of Canada Limited; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; 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.; 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.; Learjet Inc.; Saab AB Support and Services; Saab AB Support and Services; Saab AB Support and Services; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; BAE Systems (Operations) Limited
Models
A318-111, A318-112, A318-121, A318-122, A319-111, A319-112, A319-113, A319-114, A319-115, A319-131, A319-132, A319-133, A320-211, A320-212, A320-214, A320-216, A320-231, A320-232, A320-233, A320-251N, A320-271N, A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, A321-232, A321-251N, A321-253N, A321-271N, A321-272N, ATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-102, ATR72-201, ATR72-202, ATR72-211, ATR72-212, ATR72-212A, ATP, BAe 146-100A, BAe 146-200A, BAe 146-300A, Avro 146-RJ70A, Avro 146-RJ85A, Avro 146-RJ100A, HS 748 Series 2A, HS 748 Series 2B,...
Type certificates
A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A28NM, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A53EU, A27NM, A49EU, A49EU, A49EU, A49EU, A49EU, A49EU, A24EU, A24EU, A56EU, T00005NY, T00003NY, T00003NY, A21EA, A21EA, A21EA, A21EA, A21EA, A21EA-1, A21EA-1, A21EA-1, A21EA-1, A21EA-1, A21EA-1, A21EA-1, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A13NM, A22CE, A22CE, A22CE, A22CE, A22CE, A31SO, A31SO, A31SO, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, T00011AT, A56NM, A56NM, A56NM, A56NM, A57NM, A57NM, A57NM, A57NM, A57NM, A57NM, A57NM, TC00062IB, TC00062IB, T00008WI, A47NM, A52EU, A52EU, 4A21, 4A21, 4A21, 4A21, 4A28, 4A28, A2NM, A2NM, A2NM, A3WE, A3WE, A3WE, A3WE, A3WE, A3WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A16WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A6WE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A41NM
On this site
Aerospatiale/Aeritalia ATR 42 16 registered
Aerospatiale ATR 72 9 registered
Airbus A319 329 registered
Airbus A320 799 registered
Airbus A321 929 registered
Atr-Gie Avions De Trnsp Region ATR42 6 registered
Atr-Gie Avions De Trnsp Rgnl ATR 72 14 registered
Boeing Of Canada/Dehav Div DHC-8 6 registered
Boeing 717 111 registered
Boeing 757 440 registered
Bombardier BD-100 Challenger 300 and 350 878 registered
Bombardier BD-700 Global Express, 5000 and 6000 656 registered
Bombardier CL-600 Challenger and CRJ 1,656 registered
Bombardier DHC-8 Dash 8 and Q400 58 registered
British Aerospace AVRO 146 12 registered
British Aerospace BAE 146 15 registered
Cessna 560 Citation V, Ultra, Encore and Excel 1,341 registered
Cessna S550 94 registered
Dehavilland DHC-8 28 registered
Douglas DC-9 7 registered
Embraer EMB-120 40 registered
Embraer EMB-135 ERJ 135 and Legacy 119 registered
Embraer EMB-145 ERJ 145 313 registered
Embraer EMB-545 173 registered
Embraer EMB-550 Praetor 600 and Legacy 500 156 registered
Embraer ERJ 170 E170 and E175 759 registered
Embraer ERJ 190 E190 and E195 50 registered
Learjet 35 161 registered
Mcdonnell Douglas Aircraft Co MD-88 10 registered
Mcdonnell Douglas DC-9 93 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.