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Aircraft STC directory

Twin Commander Aircraft 680-V STCs

The Jun 30, 2026 FAA DRS snapshot contains 26 selected supplemental type certificates with status Current whose public applicability data names the Twin Commander Aircraft 680-V. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

26
listed Current at snapshot
18
holder directories
8
modification categories
Jun 3, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications9
Avionics4
Fuel systems4
Flight controls2
Cargo and special mission2
Engine and powerplant2
Electrical systems2
Landing gear and brakes1

Recorded holders

Signature Flight Support Corporation8BHE & Associates LTD1Metrea Special Aerospace ISR Inc.1Acron Aviation Inc.1S-TEC Corporation1Aircraft Components Inc1Brittain Industries, Inc1Commuter Air Technology Inc1National Flight Services, Inc1P2 Incorporated1FFC Manufacturing1Honeywell International Inc1Aero Air, LLC1SMR Technologies Inc1Pacific Propeller International LLC1Aircenter Inc1Quiet Flight LLC1DeVore Aviation Corporation of America, a New Mexico Corporation1

Recently revised 680-V STCs

Showing the 26 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.