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Research FAA STCs. Find the people behind them.
A compact, source-linked directory of 29,836 supplemental type certificates listed with their cited source statuses in their cited FAA DRS snapshots. Buyers can understand the approval landscape; holders, kit suppliers, and installers can create a free account and submit what is commercially available for review.
Search the public FAA STC directory
Search by STC number, holder, aircraft manufacturer or model, modification, or category.
You can also search explicitly by type certificate (TC) number and filter current, withdrawn, superseded, or historical records. Status refers to the cited source, not commercial availability.
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Browse by modification category
Each category is paginated so every published record has a durable internal discovery path.
Other aircraft modifications
11,382Current FAA supplemental type certificates outside the principal modification categories.
Explore recordsCabin and interiors
4,853Seating, cabin arrangement, galley, lavatory, entertainment, and interior changes.
Explore recordsAvionics
3,609Navigation, surveillance, display, autopilot, radar, and other approved avionics changes.
Explore recordsEngine and powerplant
1,512Engine, turbine, exhaust, nacelle, inlet, and related powerplant changes.
Explore recordsAircraft connectivity
1,301Satellite communications, broadband, antennas, telephony, and connected-aircraft systems.
Explore recordsCargo and special mission
1,280Cargo, freighter, survey, medical, public-use, and special-mission aircraft changes.
Explore recordsFuel systems
1,199Fuel tanks, cells, plumbing, transfer, measurement, and refueling changes.
Explore recordsAircraft structures
1,149Fuselage, wing, floor, door, window, frame, and other structural changes.
Explore recordsSafety and emergency equipment
960Oxygen, warning, fire protection, escape, survival, and emergency-equipment changes.
Explore recordsElectrical systems
623Aircraft wiring, generating, battery, conversion, and electrical power-system changes.
Explore recordsFlight controls
607Primary and secondary flight-control, trim, flap, spoiler, and control-surface changes.
Explore recordsLanding gear and brakes
568Landing gear, brake, wheel, tire, skid, and undercarriage changes.
Explore recordsPropellers
492Propeller, blade, governor, and related installation changes.
Explore recordsAircraft performance
217Gross-weight, operating-limit, flight-envelope, and performance-related changes.
Explore recordsRotorcraft modifications
84Current rotorcraft STCs not represented by a more specific modification category.
Explore recordsLeading holder directories
Browse all holdersAircraft with extensive STC coverage
Browse all aircraftRecently revised STC records
Installation of Adams Rite Lavatory Equipment.
FAA holder: Delta Engineering Corporation
Installation of a Freon type cabin air conditioning system with engine-driven compressor.
FAA holder: Air Comm Corporation
Installation of winglets and related system changes.
FAA holder: 3S Certification, LLC
Installation of a Cabin Door Replacement.
FAA holder: Summit Aviation Inc.
Installation of a McCauley 1A170/SFC or 1A175/DM 80-inch diameter fixed-pitch propeller.
FAA holder: Burl's Aircraft LLC
Modification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision.
FAA holder: Rockwell Collins Inc
Installation of 11,000 pound capacity Cargo Sling.
FAA holder: Carson Helicopters Inc.
Installation of an engine Inlet Barrier Filter (IBF).
FAA holder: Aerometals Inc.
Installation of a VIP interior.
FAA holder: Greenpoint Technologies, Inc.