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Aircraft STC directory

Twin Commander Aircraft 500-U STCs

The Jun 30, 2026 FAA DRS snapshot contains 27 selected supplemental type certificates with status Current whose public applicability data names the Twin Commander Aircraft 500-U. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

27
listed Current at snapshot
18
holder directories
7
modification categories
Apr 29, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications10Fuel systems7Engine and powerplant4Landing gear and brakes2Flight controls2Aircraft connectivity1Aircraft structures1

Recorded holders

Merlyn Products Inc.7Metrea Special Aerospace ISR Inc.1Kaman Corporation Aircraft Wheel and Brake LLC1S-TEC Corporation1Avidyne Corporation1Brittain Industries, Inc1Hartzell Engine Technologies, LLC1Aircraft Components Inc1Commuter Air Technology Inc1BF Goodrich Aerospace1FFC Manufacturing1RPM Commander LLC1Saint-Gobain Performance Plastics Corp1Aircenter Inc1Floats & Fuel Cells1Signature Flight Support Corporation1DeVore Aviation Corporation of America, a New Mexico Corporation1Metzger James R1

Recently revised 500-U STCs

Showing the 27 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.