FAA STC category
Other aircraft modifications STCs
Current FAA supplemental type certificates outside the principal modification categories. This directory contains 11,384 selected records listed with status Current in the June 30, 2026 FAA DRS snapshot and links every entry to its source.
Installation of UNS CVR-120 cockpit voice recorder.
FAA holder: Sierra Nevada Corporation/Integrated Mission Systems
Relocation of Sunstrand Aerospace Model 980-4100 flight data recorder.
FAA holder: Sierra Nevada Corporation/Integrated Mission Systems
Installation of an Auxiliary Power Unit (APU) Control Panel for Workstation #3.
FAA holder: Sierra Nevada Corporation/Integrated Mission Systems
Regrind Teledyne Continental crankshafts, to .020-inch undersize on crankpin and main journals.
FAA holder: Aircraft Specialties Services Inc
Installation of ACSS Traffic Collision Avoidance System TCAS II (3000 Version).
FAA holder: Aviation Communication and Surveillance Systems (ACSS) LLC
ONE ONLY - S/N 6445 Replace the Cameron Balloons US Basket/Burner system.
FAA holder: Cameron Balloons US
Reduced Vertical Separation Minimum (RVSM) non-group airworthiness approval.
FAA holder: Phoenix Air Group Inc
Installation of Concorde Valve Regulated Lead-Acid Main Batteries.
FAA holder: Gulfstream Aerospace Corporation
Installation of vortex generators on wings, horizontal and vertical tail surfaces.
FAA holder: Micro AeroDynamics Inc
Installation of EMS Technologies Canada Ltd. EMS HSD-64/-128/-HCM/-X High-speed Data Transceivers.
FAA holder: EMS Technologies Canada Ltd
ONE-ONLY STC: Installation of a Corporate Aircraft Completion for model GIV-X, serial number 4027.
FAA holder: Gulfstream Aerospace Corporation
Descriptive data pertaining to this modification is considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Cessna Model 421B, Serial Number 421B0507. Approval for operation in Known Icing Conditions.
FAA holder: Maine Aviation Management Inc
Reduced Vertical Separation Minimum (RVSM) non-group (individual) airworthiness approval of specific Lockheed Martin Model 1329-23 aircraft in accordance with Kohlman Systems Research (KSR) Master Drawing List Jetstar 1329-23, Drawing No. MDL 1009, Rev. OR, dated January 06, 2005, or later FAA approved revision.
FAA holder: Kohlman Systems Research Inc.
Installation of Rosen 7 Sidewall Monitors.
FAA holder: Learjet Inc
Installation of Stewart-Warner Model 8259-A heater.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
Installation of Precise Flight Pulselite Controls System.
FAA holder: Precise Flight Inc
Reduced Vertical Separation Minimum (RVSM) non-group airworthiness approval.
FAA holder: Kohlman Systems Research Inc.
Install Radome Assembly, P/N 4926-100 Series or 5127-200.
FAA holder: Saint-Gobain Performance Plastics Corp
Installation of a Teledyne Controls Integrated Data Management Unit.
FAA holder: Aircraft Systems & Mfg
Installation of Garmin Model GNS 480.
FAA holder: Garmin AT Inc.
Descriptive data pertaining to this design change are considered inadequate for duplication on other products. This approval is limited to the Hawker Siddeley Model HS.125-600A, Serial Number 256029 only. Non-Group (Individual) aircraft approval for Reduced Vertical Separation Minimum (RVSM).
FAA holder: AeroMech Incorporated
Installation of Model 3500 seaplane floats.
FAA holder: Aerocet Inc
Installation of SMR Technologies pneumatic deicer models.
FAA holder: SMR Technologies Inc
Installation of Slick pressurized magnetos. Also eligible on Teledyne Continental TSIO-520-NB engines modified per STC SE4327SW.
FAA holder: RAM Aircraft Limited Partnership
Reduced Vertical Separation Minimum (RVSM) Group airworthiness approval.
FAA holder: Kohlman Systems Research Inc.
Installation of Pheromone Distribution Pod System.
FAA holder: Turbine Conversions Ltd
Group aircraft approval for Reduced Vertical Separation Minimum (RVSM).
FAA holder: AeroMech Incorporated
Replace existing Pratt & Whitney PT6A engines.
FAA holder: Blue Aviation LLC
Replace 100 watt landing light with a 250 watt lamp.
FAA holder: International Motors Company
Installation of the Honeywell AZ-252 air data computer.
FAA holder: West Star Aviation
Installation of Gomolzig Quietflight Low Noise Silencer P/N PA28-606500.
FAA holder: Gomolzig Flugzeug-und Maschinenbau GmbH
Installation of Gomolzig Quietflight low noise silencer.
FAA holder: Gomolzig Flugzeug-und Maschinenbau GmbH
Installation of Gomolzig Quietflight low noise silencer P/N PA-28-606503.
FAA holder: Gomolzig Flugzeug-und Maschinenbau GmbH
Installation of Gomolzig Quietflight low noise silencer P/N PA-28-606504.
FAA holder: Gomolzig Flugzeug-und Maschinenbau GmbH
Installation of tray, liquor and entree carts.
FAA holder: Driessen Aircraft Interior Systems USA Inc
Installation of Dual CMC Electronics CMA-1100 Pilot View Electronic Flight Bags.
FAA holder: Gulfstream Aerospace Corporation
Modification of a Collins ADC-850 ( ) Air Data computer installation.
FAA holder: Rockwell Collins Inc
Group aircraft approval for Reduced Vertical Separation Minimum (RVSM).
FAA holder: AeroMech Incorporated
Installation of an L-3 Skywatch HP TCAS 1 System.
FAA holder: Rocky Mountain Aircraft
Installation of Zonal Drying System.
FAA holder: Lufthansa Technik AG
Installation of Zonal Drying System.
FAA holder: Lufthansa Technik AG
Installation of a cockpit speaker mute switch.
FAA holder: Learjet Inc.
Installation of replacement Wearpad and Skidtube Protector Kits.
FAA holder: Dart Aerospace Limited
Installation of an Optical Quick Access Recorder (OQAR).
FAA holder: Lufthansa Technik AG
Installation of an Optical Quick Access Recorder (OQAR).
FAA holder: Lufthansa Technik AG
Installation of the Honeywell RS-1721 Router/Switch.
FAA holder: Gulfstream Aerospace Corporation
Installation of a Roll-on Litter System.
FAA holder: Air Methods Corporation
Installation of Night Vision Goggles (NVG) Supplemental Lighting System.
FAA holder: Air Methods Corporation
Installation of structural provisions for the Collins Doppler DN-101.
FAA holder: Garrett Aviation Services
Installation of forward and aft bulkheads and doors.
FAA holder: Garrett General Aviation Serv Co
Installation of Fairchild cockpit voice recorder model A100 and A151 control unit.
FAA holder: Garrett General Aviation Serv Co
Installation of Sperry C14A gyrosyn compass system.Descriptive data pertaining to this design change are considered inadequate for duplication in other products. This approval is limited to only the installation made in Sikorsky, S61N, Serial No 61424.
FAA holder: Garrett Aviation Services
Installation of a single AlliedSignal GNS-XLs flight management system.
FAA holder: Garrett Aviation Services
Installation of a Dual AlliedSignal GNS-XLs flight management system.
FAA holder: Garrett Aviation Services
Installation of a Dual AlliedSignal GNS-XLS flight management system.
FAA holder: Garrett Aviation Services
Installation of dual AlliedSignal GNS-XLS Flight Management Systems.
FAA holder: Garrett Aviation Services
Installation of Aerostat Envelopes, Inc. model W-210-4 lifting envelope.
FAA holder: DiGiovanni Ronald T.
Cold weather use of kerosene fuels.
FAA holder: Bell Helicopter Textron Canada
Passenger occupancy of Crew Rest Area.
FAA holder: Bombardier Inc
Installation of a dual CMC Electronics CMA-1100 Electronic Flight Bag System.
FAA holder: MidCanada Mod Center
Installation of a Flight Inspection System.
FAA holder: Northeast Engr & Dev Ltd
Installation of an Air Box INspection Panel.
FAA holder: Prism Helicopters Ltd
Configuration of wire strike protection system.
FAA holder: Eurocopter Canada Limited
Installation of Pulselite and Whelen Landing Light.
FAA holder: Evergreen Helicopters Inc
Installation of a closet.
FAA holder: Composite Solutions Corporation
Installation of an RH and LH closet.
FAA holder: Composite Solutions Corporation
Installation of a credenza.
FAA holder: Composite Solutions Corporation
Install a CD Audio Reproducer in the electronics bay.
FAA holder: American Airlines Inc
Installation and Maintenance of Goodrich Internal Rescue Hoist.
FAA holder: Heli-Trade Corp.
Installation of a Northstar CT-1000G's Flight Deck Organizer.
FAA holder: MidCanada Mod Center
Installation of Heli-Access step.
FAA holder: Dart Aerospace Limited
Installation of an Airshow 4000 system.
FAA holder: Learjet Inc
Configuration of Litter Kit.
FAA holder: Eurocopter Canada Limited
Installation of replacement cables for the anticipator-governor.
FAA holder: Heli-Lynx Helicopter Services Inc
Installation of Economy Class Koito Seats.
FAA holder: Lufthansa Technik AG
Installation of Lycoming 0-320-D2J, -D2G, or -D1A.
FAA holder: Penn Yan Aero Service Inc
Installation of an Automated Flight Information Reporting System (AFIRS) system.
FAA holder: AeroMechanical Services Ltd