ST03416NYAircraft connectivity
Installation of Intelsat Connectivity Antenna (with demod option).
FAA holder: Delta Engineering Corporation
Aircraft STC directory
Airbus SAS A321-211 STCs
The Jun 30, 2026 FAA DRS snapshot contains 128 selected supplemental type certificates with status Current whose public applicability data names the Airbus SAS A321-211. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
128
listed Current at snapshot
64
holder directories
12
modification categories
May 21, 2026
latest recorded revision
Modification demand surface
Other aircraft modifications44
Aircraft connectivity26
Cabin and interiors21
Avionics10
Cargo and special mission8
Safety and emergency equipment6
Aircraft structures5
Electrical systems3
Fuel systems2
Aircraft performance1
Landing gear and brakes1
Engine and powerplant1
Recorded holders
Delta Engineering Corporation8Amphenol Cable and Interconnect Technologies Inc.7Lufthansa Technik AG6Honeywell International Inc6ALOFT AeroArchitects4Aircraft Systems and Manufacturing Inc4Thales Avionics Inc4VT DRB Aviation Consultants3Telair International3Aeroconseil3Ancra International LLC3Aviation Communication and Surveillance Systems (ACSS) LLC3Avianor Inc2AMETEK AMERON LLC d/b/a MASS Systems2Atin OOH LLC2Anuvu IFC Corporation2Safran Cabin Inc.2Aerotec Concept2American Airlines Inc2Woven Electronics LLC2
Recently revised A321-211 STCs
Showing the 100 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
ST12401IBAircraft structures
The Installation of Airbus A319/A320/A321 cockpit door e-strike improvement.
FAA holder: Air Canada
ST03438NYCabin and interiors
Installation of Adams Rite Lavatory Equipment.
FAA holder: Delta Engineering Corporation
ST12369IBCabin and interiors
Replacement of flight attendant seat restraints, dress covers and cushion assemblies.
FAA holder: Avianor Inc.
ST00952LAOther aircraft modifications
Installation of Mass Systems fire extinguisher cartridges as replacements for Kidde fire extinguisher cartridges in fire extinguisher bottles.
FAA holder: AMETEK AMERON LLC d/b/a MASS Systems
ST03741NYAircraft connectivity
Viasat KA SATCOM Antenna System Installation, approve configurations.
FAA holder: ALOFT AeroArchitects
ST03742NYCabin and interiors
Viasat KA Cabin Distribution System Installation.
FAA holder: ALOFT AeroArchitects
ST11288DSCabin and interiors
Interior reconfiguration increasing passenger count from 190 to 196 passengers.
FAA holder: VT DRB Aviation Consultants
ST00142NYCargo and special mission
Cargo floorboard installation.
FAA holder: American Airlines, Inc., Maintenance and Engineering (M&E) Division
ST02890NYAircraft connectivity
Installation of a Panasonic Avionics Corporation Global Communications Suite Antenna.
FAA holder: Delta Engineering Corporation
ST04759NYOther aircraft modifications
Installation of a single cockpit USB charger.
FAA holder: Eirtech Aviation Services Inc.
ST02356LAOther aircraft modifications
Installation of Inflight Warning Systems Fan Vibration Monitor Unit.
FAA holder: Astronics Advanced Electronic Systems (AES)
ST00885LAOther aircraft modifications
Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles.
FAA holder: AMETEK AMERON, LLC d/b/a MASS Systems
ST02699LAElectrical systems
Installation of Vogt Aero Nickel Cadmium Battery P/N 2758-LMVA or 2758-RMVA.
FAA holder: Vogt Aero LLC
ST02714CHCabin and interiors
Modify the aircraft interior to match standard passenger configurations.
FAA holder: Atin OOH LLC
ST03189CHCabin and interiors
Installation of an advertisement container on the bottom of a seat back tray table.
FAA holder: Atin OOH LLC
ST04462CHAircraft connectivity
Installation of Row 44 Broadband Antenna System Provisions.
FAA holder: Anuvu IFC Corporation
ST04528CHAircraft connectivity
Installation of a broadband wireless internet system in accordance with Row 44 Master Data Index Listing, Document No. RWO100-0003-00, Revision IR, dated May 26, 2021 or later FAA approved revision.
FAA holder: Anuvu IFC Corporation
ST12229IBAircraft connectivity
Installation of Thinkom antenna on the top rear fuselage.
FAA holder: EAD Aerospace Airworthiness T/A Eclipse Technics
ST04288CHAircraft connectivity
Installation of an Automatic Dependent Surveillance Broadcast Out (ADS-B Out) Transponder System with Honeywell Integrated Multi-Mode Receiver (IMMR), Model Number IMMR 20.1 installed with TSO-C190 compliant GPS antenna.
FAA holder: Amphenol Cable and Interconnect Technologies Inc.
ST04292CHAircraft connectivity
Installation of JADE SATCOM Antenna System Provisions.
FAA holder: Amphenol Cable and Interconnect Technologies Inc.
ST03885ATOther aircraft modifications
Installation of an Avionica, Inc. avCM Cellular Module.
FAA holder: Aircraft Systems and Manufacturing Inc.
ST02561LACabin and interiors
C&D Zodiac, Inc. Interior Installations and Modifications per C&D Zodiac, Inc., Index List No. 945-1, Revision B, dated April 20, 2018, or later FAA approved revisions.
FAA holder: Safran Cabin Inc.
ST04493NYCargo and special mission
Conversion of Passenger to Freighter configuration by installing a large Main Deck Cargo Door and Frame Shell Structure, Class "E" Cargo Compartment, Crew Entry Door and Surround Structure, Rigid Cargo Barrier, Floor reinforcements, and other associated modifications.
FAA holder: ELBE Flugzeugwerke GmbH
ST02735LACargo and special mission
Installation of modular lower deck Cargo Loading System (CLS).
FAA holder: Telair International
ST03417NYAircraft connectivity
Installation with demod option of Intelsat Cabin Connectivity System.
FAA holder: Delta Engineering Corporation
ST04798NYCabin and interiors
AAR Engineering Services Seat Re-pitch.
FAA holder: Delta Engineering Corporation
ST02472ATOther aircraft modifications
Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII.
FAA holder: Aircraft Systems and Manufacturing Inc.
ST02612CHAircraft structures
Installation of AD Aerospace Cockpit Door Monitoring System.
FAA holder: Amphenol Cable and Interconnect Technologies, Inc.
ST02626CHOther aircraft modifications
Installation of ECS EZMount® mechanical mounting assemblies on lower frames of cockpit sliding windows.
FAA holder: Amphenol Cable and Interconnect Technologies Inc
ST04328CHAircraft connectivity
Installation and activation of the RAVE Wireless Broadband System.
FAA holder: Amphenol Cable and Interconnect Technologies Inc.
ST04334CHAircraft connectivity
Installation and activation of an ARINC 791 SATCOM System.
FAA holder: Amphenol Cable and Interconnect Technologies Inc.
ST04287CHOther aircraft modifications
The Certification for Transmitting Portable Electronic Device (TPED).
FAA holder: Amphenol Cable and Interconnect Technologies Inc.
ST11885IBAircraft connectivity
Structure Reinforcement Common Design for ARINC 791 Large Antenna Installation.
FAA holder: Sabena Technics BGC
ST04010NYFuel systems
Installation of Reticulated Polyurethane Foam (RPF) For Center Fuel Tank Ignition Mitigation.
FAA holder: AerSale Inc.
ST04470NYAircraft connectivity
Removal of Ka-band antenna and systems components.
FAA holder: Lufthansa Technik AG
ST00212IBElectrical systems
Installation of Uninterruptable Power Supply (UPS).
FAA holder: LUFTHANSA TECHNIK AG
ST02716SECargo and special mission
Conversion of an Airbus A321-200 passenger configuration airplane to a freighter configuration.
FAA holder: 321 Precision Conversions LLC
ST11092DSOther aircraft modifications
Installation of Heads-Up Technologies Pre-Recorded Announcement Machine (PRAM).
FAA holder: American Airlines Inc.
ST04071NYSafety and emergency equipment
Installation of VisionSafe Emergency Vision Assurance System (EVAS).
FAA holder: VisionSafe LLC
ST00173IBCabin and interiors
Remove the existing G5 galley and replace it with a Diehl SKYPAX monument.
FAA holder: Lufthansa Technick AG
ST09939ACAircraft connectivity
Installation of the Spacex Starlink Aviation Satcom System.
FAA holder: Space Exploration Technologies Corp./Starlink Aviation
ST04577ATSafety and emergency equipment
Installation of the ARTEX 4000 Emergency Locator Transmitter (ELT) System.
FAA holder: Woven Electronics LLC
ST04623CHOther aircraft modifications
Installation of Flight Deck Power System.
FAA holder: Rosemount Aerospace Inc.
ST00143IBCabin and interiors
Installation of the ACES Inc. Seat Table Inset (STI) Assembly, Part Number 2521-4002, at the Middle Seat in the First Three (3) Left-Hand and Right-Hand Rows.
FAA holder: ACES Inc.
ST00107IBCabin and interiors
Installation of flight attendant seat restraints, dress covers and cushion assemblies.
FAA holder: Avianor Inc.
ST00126IBOther aircraft modifications
Replacement of Halon agent with alternate Halon-free Portable Fire Extinguisher agent.
FAA holder: AMAC Aerospace Switzerland AG
ST02768SEOther aircraft modifications
Installation of a Pexco AirShield.
FAA holder: Pexco Aerospace Inc.
ST04562NYSafety and emergency equipment
Installation of saf-Tglo® SuperSeal UltraLite-X (SSUL-X) Photoluminescent Floor Proximity Emergency Escape Path Marking Systems.
FAA holder: STG AEROSPACE GERMANY GmbH
ST00105IBOther aircraft modifications
Introduction of Activation of Wireless Charging Systems for Portable Electronic Devices.
FAA holder: AMAC AEROSPACE SWITZERLAND AG
ST00898DECabin and interiors
Installation of Glide Lite In-Flight Entertainment System.
FAA holder: Burrana Inc.
ST04131NYAircraft connectivity
Installation of the Ka-Band Antenna and systems installation.
FAA holder: Lufthansa Technik AG
ST03194NYOther aircraft modifications
Update of a Gogo ATG4 system.
FAA holder: Delta Engineering Corporation
ST04065NYOther aircraft modifications
Installation of Wireless IFE System.
FAA holder: H4 Aerospace (UK) Ltd.
ST01797CHSafety and emergency equipment
Installation of a Honeywell RESCU 406AF Emergency Locator Transmitter (ELT) System.
FAA holder: Honeywell International Inc.
ST04474NYOther aircraft modifications
Activation of Wireless Local Area Network (WLAN) system.
FAA holder: Jet Aviation AG
ST04336CHOther aircraft modifications
Installation of Honeywell Enhanced Ground Proximity Warning Computer (EGPWC) Upgrade and Runway Awareness and Advisory System (RAAS) Activation.
FAA holder: Honeywell International Inc.
ST00055IBSafety and emergency equipment
Installation of Eastern Aero Marine (EAM) Model ES-320F escape slide.
FAA holder: Lufthansa Technik AG
ST03739NYOther aircraft modifications
Electromagnetic Compatibility (EMC) for RF Systems installation on electromagnetic compatibility testing on Airbus A321 series aircraft.
FAA holder: ALOFT AeroArchitects
ST04520CHOther aircraft modifications
Installation of Rosemount Aerospace Aircraft Interface Device (AID) Data Loader Provisions in accordance with Rosemount Aerospace Inc. Master Data List, Doc. No. D000022110, Revision A, dated June l, 2022, or laterFAA approved revisions.
FAA holder: Rosemount Aerospace Inc
ST04520ATOther aircraft modifications
Installation of Rockwell Collins GLU-2100 Multi Mode Receivers (MMR).
FAA holder: Woven Electronics LLC
ST04624NYAircraft connectivity
Installation of the GEE ARINC 791 Ku Band Satellite Communication Antenna.
FAA holder: Aeroconseil
ST04696NYAircraft connectivity
Installation of KA-Band System Broadband Provisions.
FAA holder: EAD Aerospace Airworithiness
ST02656SEOther aircraft modifications
Installation of a flight attendant crew rest curtain.
FAA holder: Commercial Aircraft Interiors
ST03422NYOther aircraft modifications
Update of Intelsat components.
FAA holder: Delta Engineering Corporation
ST03974ATOther aircraft modifications
Installation of a International Communications Group ICS-120A/220A Iridium Communications System.
FAA holder: Avionics Support Group Inc.
ST04679NYCabin and interiors
Installation of Cabin Air Recirculation Filter Cartridge Replacement.
FAA holder: Aeroconseil
ST11381DSAircraft connectivity
Installation of an Avionica WiFi System.
FAA holder: Aircraft Systems and Manufacturing Inc
ST9093SCOther aircraft modifications
Recore of Leibherr Primary Heat Exchanger.
FAA holder: Honeywell International Inc.
ST9094SCOther aircraft modifications
Recore of Leibherr Main Heat Exchanger.
FAA holder: Honeywell International Inc.
ST9095SCOther aircraft modifications
Recore of Leibherr Reheater Heat Exchanger.
FAA holder: Honeywell International Inc.
ST01963WISafety and emergency equipment
Installation of Integra Pulse Portable Oxygen Bottle.
FAA holder: B/E Aerospace
ST11283DSOther aircraft modifications
Installation of Aviation Clean Air (ACA) aircraft ionization units.
FAA holder: VT DRB Aviation Consultants
ST04352ATAvionics
Installation of a Talon Aerospace LED Replacement Navigation / Position Light.
FAA holder: Aaxico Technical Services Inc.
ST02741LACargo and special mission
Installation of Main Deck Cargo Loading System (MDCLS.
FAA holder: Telair International
ST02742LACargo and special mission
Installation of Main Deck Cargo Floor Panel System (CFPS.
FAA holder: Telair International
ST03414NYCabin and interiors
Installation of a Thales In-Flight Entertainment System.
FAA holder: Thales Avionics Inc
ST11382DSAircraft connectivity
Installation of an Iridium Communication System.
FAA holder: Aircraft Systems and Manufacturing Inc
ST02727LACargo and special mission
Installation of cargo loading system.
FAA holder: Ancra International LLC
ST11258DSCabin and interiors
Installation of new first class seats, new hanging soft dividers, sidewall mounted literature pockets, and re-pitch two rows of main cabin seats.
FAA holder: American Airlines Inc
ST04529NYOther aircraft modifications
Installation of Zero Passenger Layout of Passenger Accommodation (LOPA).
FAA holder: Eirtech Aviation Services Limited
ST02733LACargo and special mission
Installation of lower cargo deck loading system.
FAA holder: Ancra International LLC
ST02528LACabin and interiors
Installation of Data Transfer Device (DTD) into the existing Cabin Medial Loader (CML).
FAA holder: Thales Avionics Inc
ST04425CHOther aircraft modifications
Installation of a Honeywell One Aero Edge Node (1AEN) in accordance with StandardAero Master Data List 1037081, Revision (B), dated June 9, 2020 or later FAA approved revision.
FAA holder: StandardAero Business Aviation Services LLC
ST04424CHOther aircraft modifications
TPED Compatibility Test in accordance with StandardAero Master Data List 1037140, Revision (B), dated June 1, 2020 or later FAA approved revision.
FAA holder: Standard Aero Business Aviation Services LLC
ST02152LAOther aircraft modifications
Installation of AmSafe Aviation Inflatable Restraint (AAIR) System.
FAA holder: AMSAFE Inc.
ST04383CHElectrical systems
Replacement of Main Ships Battery in accordance with StandardAero Master Data List 1035677, Revision (A), dated November 07, 2019 or later FAA approved revision.
FAA holder: Securaplane Technologies Inc
ST02640LAAvionics
Upgrade of TCAS and installation of ACSS SafeRoute ADS-B In system.
FAA holder: Aviation Communication and Surveillance Systems (ACSS) LLC
ST04420NYOther aircraft modifications
Installation of the Passenger Luggage Space Upgrade.
FAA holder: FACC Operations GmbH
ST04438CHOther aircraft modifications
Installation of Wheelchair Stowage Compartment in accordance with ata List, 38925CR002, Revision A, dated October 11, 2019, or later FAA approved revision.
FAA holder: AAR Aircraft Services
ST04150ATOther aircraft modifications
Installation of an Aviator 300(D) Communications System and Wireless Access Point.
FAA holder: Avionics Support Group Inc.
ST04372NYOther aircraft modifications
Installation of saf-Tglo® SSUL23 Photoluminescent Aisle Path Marking System.
FAA holder: STG Aerospace Ltd
ST04049NYAircraft performance
Installation of a Hoffman Engineering LLC LED Landing Light to replace the OEM Q4559 Series Incandescent Lamp, used as a Landing/Takeoff Light.
FAA holder: Hoffman Engineering LLC