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, A28NM,
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, 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, 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, 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, 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, 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