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Public research · Private transactions

Research FAA STCs. Find the people behind them.

A compact, source-linked directory of 29,834 supplemental type certificates listed with status Current in the June 30, 2026 FAA DRS snapshot. Buyers can understand the approval landscape; holders, kit suppliers, and installers can join the private marketplace and publish what is commercially available.

29,834
current STC records
1,228
holder directories
5,301
aircraft STC hubs
2026-06-30
FAA dataset date

Browse by modification category

Each category is paginated so every published record has a durable internal discovery path.

Other aircraft modifications

11,384

Current FAA supplemental type certificates outside the principal modification categories.

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Cabin and interiors

4,850

Seating, cabin arrangement, galley, lavatory, entertainment, and interior changes.

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Avionics

3,609

Navigation, surveillance, display, autopilot, radar, and other approved avionics changes.

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Engine and powerplant

1,512

Engine, turbine, exhaust, nacelle, inlet, and related powerplant changes.

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Aircraft connectivity

1,300

Satellite communications, broadband, antennas, telephony, and connected-aircraft systems.

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Cargo and special mission

1,280

Cargo, freighter, survey, medical, public-use, and special-mission aircraft changes.

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Fuel systems

1,199

Fuel tanks, cells, plumbing, transfer, measurement, and refueling changes.

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Aircraft structures

1,149

Fuselage, wing, floor, door, window, frame, and other structural changes.

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Safety and emergency equipment

960

Oxygen, warning, fire protection, escape, survival, and emergency-equipment changes.

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Electrical systems

623

Aircraft wiring, generating, battery, conversion, and electrical power-system changes.

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Flight controls

607

Primary and secondary flight-control, trim, flap, spoiler, and control-surface changes.

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Landing gear and brakes

568

Landing gear, brake, wheel, tire, skid, and undercarriage changes.

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Propellers

492

Propeller, blade, governor, and related installation changes.

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Aircraft performance

217

Gross-weight, operating-limit, flight-envelope, and performance-related changes.

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Rotorcraft modifications

84

Current rotorcraft STCs not represented by a more specific modification category.

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Leading holder directories

Aircraft with extensive STC coverage

Recently revised STC records