STC Holder: STC Twenty One Limited

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No. of STCs: 10

STC Holder: STC Twenty One Limited Address: 6 Nottingham Road, Nottingham NG10 1HP, United Kingdom		Contact us to have your company added here!
STC No.: ST00098IB	Status: Current	App Date: 12/13/2022	Rev Date: 02/22/2023
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 gional: ATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-102, ATR72-201, ATR72-202, ATR72-211, ATR72-212, ATR72-212A Airbus SAS: 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 BAE Systems (Operations) Limited: ATP, 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 Aircraft: Jetstream 3201 De Havilland Aircraft of Canada Limited: DHC-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 ULC: CL-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 Services: 340A (SAAB SF340A), SAAB 2000, SAAB 340B Textron Aviation Inc.: 500, 550, 560, 560XL, S550 The Boeing Company: 707-100 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
Introduction of ADS-B Out

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

STC Holder: STC Twenty One Limited Address: 6 Nottingham Road, Nottingham, United Kingdom, NG10 1HP		Contact us to have your company added here!
STC No.: ST02676LA	Status: Current	App Date: 12/30/2013	Rev Date: 12/16/2022
TC Nos.: A16WE,
Models: The Boeing Company: 737-400 Series
ACO: AIR-770: West Certification Branch LA
Installation of palletized aerial dispersant of liquids tanker system

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

STC Holder: STC Twenty One Limited Address: 6 Nottingham Road, Nottingham, NG10 1HP, United Kingdom		Contact us to have your company added here!
STC No.: ST04061NY	Status: Current	App Date: 07/12/2017	Rev Date: 02/26/2018
TC Nos.: A2NM,
Models: The Boeing Company: 757-200 Series
ACO: AIR-750: East Certification Branch NY
Activation of Controller Pilot Data Link Communications

STC Holder: STC Twenty One Limited Address: 6 Nottingham Road, Nottingham, NG10 1HP, United Kingdom		Contact us to have your company added here!
STC No.: ST04141NY	Status: Historical	App Date: 05/17/2018	Rev Date: 05/31/2018
TC Nos.: A28NM,
Models: Airbus SAS: A319-133, A320-214
ACO: New York ACO Branch, Tel: +1 (516) 228-7300
Installation of Donica WiFi 6000 System

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

STC Holder: STC Twenty One Limited Address: 1290 London Rd, Derby, - DE24 BQP, UK		Contact us to have your company added here!
STC No.: ST04362NY	Status: Historical	App Date: 01/15/2018	Rev Date: 07/12/2019
TC Nos.: A46NM,
Models: Airbus SAS: A330-343
ACO: New York ACO Branch, Tel: +1 (516) 228-7300
Installation and activation of the GoGo 2-KU Antenna system

STC Holder: STC Twenty One Limited Address: 6 Nottingham Road, Nottingham, -- NG10 1HP, United Kingdom		Contact us to have your company added here!
STC No.: ST04417NY	Status: Current	App Date: 08/28/2019	Rev Date: 10/23/2019
TC Nos.: A28NM,
Models: Airbus SAS: A319-111, A320-214
ACO: AIR-750: East Certification Branch NY
Activation of the FeiTian System Media Server with Cabin Wi-Fi

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