STC Holder: STC Twenty One Limited

The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. We do not provide access to STC engineering. For that you need to contact the STC holder directly. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 10

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham NG10 1HP, United Kingdom		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00098IB	Status: Current	App Date: 12/13/2022	Rev Date: 02/22/2023
Description: Introduction of ADS-B Out
TC Nos.: 4A21, 4A28, A10CE, A13NM, A16WE, A21EA, A21EA-1, A22CE, A24EU, A27NM, A28NM, A2NM, A31SO, A3WE, A41NM, A47NM, A49EU, A52EU, A53EU, A56EU, A56NM, A57NM, A6WE, T00003NY, T00005NY, T00008WI, T00011AT, TC00062IB
Models: ATR - GIE Avions de Transport R gionalATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-102, ATR72-201, ATR72-202, ATR72-211, ATR72-212, ATR72-212A Airbus SASA318-111, 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 BAE Systems (Operations) LimitedATP, Avro 146-RJ100A, Avro 146-RJ70A, Avro 146-RJ85A, BAe 146-100A, BAe 146-200A, BAe 146-300A, HS 748 Series 2A, HS 748 Series 2B, Jetstream Model 4101 Bombardier Inc.BD-100-1A10, BD-700-1A10, BD-700-1A11, CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R), CL-600-2B16 (CL-604) British Aerospace Regional AircraftJetstream 3201 De Havilland Aircraft of Canada LimitedDHC-8-102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311, DHC-8-315, DHC-8-401, DHC-8-402 Embraer S.A.EMB-120, EMB-120ER, EMB-120RT, EMB-135BJ (Legacy 600), EMB-135BJ (Legacy 650), EMB-135ER, EMB-135LR, EMB-145, EMB-145EP, EMB-145ER, EMB-145LR, EMB-145MP, EMB-545, EMB-550, ERJ 170-100 LR, ERJ 170-100 STD, ERJ 170-200 LR, ERJ 170-200 STD, ERJ 190-100 ECJ, ERJ 190-100 IGW, ERJ 190-100 LR, ERJ 190-100 STD, ERJ 190-200 IGW, ERJ 190-200 LR, ERJ 190-200 STD Learjet Inc.24A, 24B, 24B-A, 24D, 24D-A, 24F, 24F-A, 25B, 25C, 25D, 25F, 31, 31A, 35, 35A (C-21A), 36, 36A, 45, 55, 55B, 55C, 60 MHI RJ Aviation ULCCL-600-2B19 (Regional Jet Series 100), CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), CL-600-2E25 (Regional Jet Series 1000) Saab AB Support and Services340A (SAAB SF340A), SAAB 2000, SAAB 340B Textron Aviation Inc.500, 550, 560, 560XL, S550 The Boeing Company707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 717-200, 720 Series, 720B Series, 727 Series, 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series, 727C Series, 737-100 Series, 737-200 Series, 737-200C Series, 737-300 Series, 737-400 Series, 737-500 Series, 737-600 Series, 737-700 Series, 737-8, 737-800 Series, 737-900 Series, 737-900ER Series, 757-200 Series, 757-200PF Series, 757-300 Series, DC-9-14, DC-9-15, DC-9-21, DC-9-32, DC-9-32 (VC-9C), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, DC-9-51, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, MD-90-30
ACO: AIR-778: Alaska Aviation Section ANC

STC Holder: STC Twenty One Limited The Waldorf Centre, 1290 London Road, Alvaston, Derby DE24 8QP		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST00204IB	Status: Current	App Date: 05/03/2024	Rev Date: 06/14/2024
Description: Installation of Structural Provisions for a Swift Broadband Antenna
TC Nos.: A53NM
Models: Gulfstream Aerospace LPGalaxy, Gulfstream 200
ACO: AIR-730: International Validation Branch

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham, United Kingdom, NG10 1HP		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST02676LA	Status: Current	App Date: 12/30/2013	Rev Date: 12/16/2022
Description: Installation of palletized aerial dispersant of liquids tanker system
TC Nos.: A16WE
Models: The Boeing Company737-400 Series
ACO: AIR-770: West Certification Branch LA

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham, -- NG10 1HP, United Kingdom		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST03687NY	Status: Current	App Date: 10/23/2013	Rev Date: 10/04/2019
Description: Installation of Alternate Cargo Net Location Layout
TC Nos.: A52EU
Models: Saab AB Saab Aeronautics340A (SAAB SF340A), SAAB 340B
ACO: AIR-750: East Certification Branch NY

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham, NG10 1HP, United Kingdom		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST04061NY	Status: Current	App Date: 07/12/2017	Rev Date: 02/26/2018
Description: Activation of Controller Pilot Data Link Communications
TC Nos.: A2NM
Models: The Boeing Company757-200 Series
ACO: AIR-750: East Certification Branch NY

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham, NG10 1HP, United Kingdom		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST04141NY	Status: Historical	App Date: 05/17/2018	Rev Date: 05/31/2018
Description: Installation of Donica WiFi 6000 System
TC Nos.: A28NM
Models: Airbus SASA319-133, A320-214
ACO: New York ACO Branch, Tel: +1 (516) 228-7300

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham, -- NG10 1HP, United Kingdom		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST04305NY	Status: Current	App Date: 01/18/2018	Rev Date: 02/26/2019
Description: Installation of ADS-B Out
TC Nos.: A2NM
Models: The Boeing Company757-200 Series, 757-300 Series
ACO: AIR-750: East Certification Branch NY

STC Holder: STC Twenty One Limited 1290 London Rd, Derby, - DE24 BQP, UK		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST04362NY	Status: Historical	App Date: 01/15/2018	Rev Date: 07/12/2019
Description: Installation and activation of the GoGo 2-KU Antenna system
TC Nos.: A46NM
Models: Airbus SASA330-343
ACO: New York ACO Branch, Tel: +1 (516) 228-7300

STC Holder: STC Twenty One Limited 6 Nottingham Road, Nottingham, -- NG10 1HP, United Kingdom		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST04417NY	Status: Current	App Date: 08/28/2019	Rev Date: 10/23/2019
Description: Activation of the FeiTian System Media Server with Cabin Wi-Fi
TC Nos.: A28NM
Models: Airbus SASA319-111, A320-214
ACO: AIR-750: East Certification Branch NY

STC Holder: STC Twenty One Limited The Waldorf Centre, 1290 London Road, Alvaston, DerbyshireDE24 8QP		If you are an STC Holder, Contact us to have your company added here!
STC No.: ST04648NY	Status: Current	App Date: 05/21/2019	Rev Date: 07/02/2021
Description: Installation of VIP Cabin Interior; 737-8, serial number 61329
TC Nos.: A16WE
Models: The Boeing Company737-8
ACO: AIR-778: Alaska Aviation Section ANC