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 mission related (non-essential, non-required) equipment and structural shapes on the exterior of the aircraft (safe carriage only).
FAA holder: L-3 Communications Integrated Systems LP
Installation of communication and surveillance equipment.
FAA holder: L-3 Communications Integrated Systems LP
Installation of air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
Installation of oil filter adapter and oil filter.
FAA holder: Airwolf Filter Corporation
Installation of oil filter adapter and oil filter.
FAA holder: Airwolf Filter Corporation
Installation of oil filter adapter and oil filter.
FAA holder: Airwolf Filter Corporation
Installation of oil fitting (AN-823-5D) in rocker box cover.
FAA holder: Airwolf Filter Corporation
Installation of oil fitting(AN-823-5D) in rocker box cover.
FAA holder: Airwolf Filter Corporation
Installation of oil fitting (AN-823-5D) in rocker box cover.
FAA holder: Airwolf Filter Corporation
Installation of oil filter adapter and oil filter.
FAA holder: Airwolf Filter Corporation
Installation of remote mounted oil filter, model AFC-500 or AFC-600, and kit AFC-K014.
FAA holder: Airwolf Filter Corporation
Upgrade Unilink UL-801 for ATN B1 function.
FAA holder: Avionics Integration & Engineering Corporation
Installation of an Astronics Flight Deck Outlet w/ USB Power System.
FAA holder: Astronics Armstrong Aerospace
Installation of Auxiliary HF System.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of VHF Switching System.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a third INS System System.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation
Installation of Jacuzzi System.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Decompression provisions.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Install VA-100 voice advisory.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of AV-557C cockpit voice recorder.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Sperry AZ 242 #2 air data computer system.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Storage box from F.S. 718 to F.S. 736.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Manufacture and installation of H.F. System equipment shelves.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of compass switching.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Global GNS-500A Omega/VLF system.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Sperry RI-106 remote controllers.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Sperry dual AZ-800 digital air data system and revise Pitot/Static System.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Sperry magnetic heading reference system.
FAA holder: Associated Air Center, Inc. - c/o CT Corpor
Installation of Litton LTN-72RL NAV system.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a Collins TTR 920 TCAS II and dual Collins TPR-720 Mode S transponders.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a one meg nav data base and flight management computer product improvement package.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Honeywell TCAS II System with dual Honeywell Primus II Mode S transponders.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a Bendix-King CAS 81 TCAS with dual TRA-67 Mode S Transponders.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a Collins TCAS II System with dual Collins TDR-94D transponders.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a Triple Honeywell Inertial Reference System.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a dual Collins ADS-80 air data system for RVSM compliance.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
A.P.U. Installation - Ranger Andover Model V-32D-2-1.
FAA holder: Preferred Improvements LLC
Installation of bird resistant windshield.
FAA holder: Preferred Improvements LLC
Alternate Tee-Bolt radome attachment for STC SA3-52 radome installation.
FAA holder: Preferred Improvements LLC
Installation of a Panasonic Global Communication Suite (GCS).
FAA holder: Delta Engineering Corporation
Installation of a wireless local area network (WLAN).
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a wireless local area network (WLAN).
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of a Controller - Pilot Data Link Communications.
FAA holder: Associated Air Center, Inc. - c/o CT Corporation System
Installation of Williams International FJ44-3A engines.
FAA holder: A.L.S. International Inc.
Installation of Underwater Locator Device.
FAA holder: Bombardier Inc
Installation of Pall Aeropower Corporation FTIS pre-filter kit part number A290957STC.
FAA holder: Pall Aeropower Corporation
Installation of the Garmin G1000.
FAA holder: Diamond Aircraft Industries Inc.
Installation of a Garmin GDL 82 UAT Datalink Transceiver.
FAA holder: Garmin International Inc
Installation of Rockwell Collins, Inc. Pro Line Fusion.
FAA holder: Rockwell Collins Inc
Installation of external markings.
FAA holder: Airbus Helicopters, Inc.
Installation of Nose Utility Mount.
FAA holder: Airfilm Camera Systems
AF-ADELT improved installation.
FAA holder: Caledonian Airborne Systems Ltd Caledonian House
Installation of external aft body strakes.
FAA holder: Aircraft Performance Modifications
Installation of a BAE Systems AN/ALQ-212(V)6.
FAA holder: BAE SYSTEMS Information and Electronic Systems Integration Inc.
Installation of a cooling shroud.
FAA holder: McFarlane Aviation Inc
Installation of a replacement coalescer filter P/N 23TD11.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter, GAI P/N 22D10 or 22D10-2.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter, P/N 22D10 or 22D10-2.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter, GAI P/N 20D10-2 or 20D10-3.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter.
FAA holder: Purolator Facet, Inc
Installation of a replacement cartridge filter assembly.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter.
FAA holder: Purolator Facet, Inc
Installation of a replacement coalescer filter, P/N 21BC107.
FAA holder: Purolator Facet, Inc
Installation of vortex generators.
FAA holder: Aviation Technical Services
Installation of a Gear Latch & Ground Shift system.
FAA holder: Preferred Improvements LLC
Fabrication and installation of weld-on shoulder harness brackets.
FAA holder: F. Atlee Dodge Aircraft Services, LLC
Non-group Reduced Vertical Separation Minimum (RVSM) airworthiness approval.
FAA holder: AeroMech Incorporated
Change belly skins from aluminum to stainless steel.
FAA holder: Hershey Flying Service Inc
Installation of G-164B wings on aircraft previously modified by STC SA3645SW.
FAA holder: Hershey Flying Service Inc
Installation of replacement sidewall light lenses and end retainers.
FAA holder: STG Aerospace Ltd
Installation of an Avionica, Inc. avWiFi wireless router system.
FAA holder: Archeion Holdings LLC
Installation of a cfMount (TM) and Cradle.
FAA holder: Avionics Support Group Inc.
Installation of 15-gallon tip tanks.
FAA holder: Floyd N. Houdashell
Installation of an Astronics Flight Deck Outlet w/ USB Power System.
FAA holder: Astronics Armstrong Aerospace
Installation of an Accelerometer (Advanced Gravity Level Indication System -AGLIS).
FAA holder: Zero Gravity Corporation
Replacement of existing TCAS 7.0 by TCAS 7.1.
FAA holder: Scandinavian Avionics Design ApS