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Aircraft STC directory

Bell Helicopter Textron 412 STCs

The Jun 30, 2026 FAA DRS snapshot contains 282 selected supplemental type certificates with status Current whose public applicability data names the Bell Helicopter Textron 412. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

282
listed Current at snapshot
76
holder directories
12
modification categories
Feb 5, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications139
Cabin and interiors33
Cargo and special mission23
Avionics17
Engine and powerplant16
Aircraft structures15
Landing gear and brakes9
Electrical systems9
Safety and emergency equipment8
Fuel systems8
Rotorcraft modifications3
Aircraft connectivity2

Recorded holders

RSG Products34Bell Helicopter Textron Inc.31Dart Aerospace USA Inc.24Dart Aerospace Limited19Texas Aviation Services12Alpine Aerotech Ltd11Apical Industries, Inc. dba Dart Aerospace9Sikorsky Aircraft Corporation8Alpine Aerotech LP7Apical Industries Inc5Heritage Aviation Ltd5Air Methods LLC4AEM USA Inc.4Onboard Systems International3Dart Aerospace Ltd.3Helicopter Aviation Services Corporation3Helifab Inc3Benz Airborne Systems3Alpine Helicopters Ltd3Alpine Aerotech Limited3

Recently revised 412 STCs

Showing the 100 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.