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Aircraft STC directory

Bell Helicopter Textron 412EP STCs

The Jun 30, 2026 FAA DRS snapshot contains 201 selected supplemental type certificates with status Current whose public applicability data names the Bell Helicopter Textron 412EP. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

201
listed Current at snapshot
64
holder directories
11
modification categories
Feb 5, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications109
Cabin and interiors19
Avionics13
Cargo and special mission13
Aircraft structures11
Engine and powerplant11
Safety and emergency equipment8
Landing gear and brakes7
Fuel systems4
Rotorcraft modifications3
Electrical systems3

Recorded holders

Bell Helicopter Textron Inc.34Dart Aerospace Limited18Dart Aerospace USA Inc.14Alpine Aerotech Ltd11Alpine Aerotech LP7RSG Products6AEM USA Inc.5Heritage Aviation Ltd5Texas Aviation Services4Air Methods LLC3LifePort LLC3Apical Industries, Inc. dba Dart Aerospace3Bell Helicopter Textron3Helifab Inc3Apical Industries Inc3Benz Airborne Systems3Alpine Helicopters Ltd3Alpine Aerotech Limited3Onboard Systems International2Aero Dynamix Inc.2

Recently revised 412EP STCs

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

SR02126SEOther aircraft modifications

Installation of the MECHANICAL SPECIALTIES, Model # UH606 in accordance with document # UH606-100-ICAW paragraph 6, Revision A, dated November 09, 2008, or later FAA approved revision. Manufactured in accordance with Master Document list MDL-205-60-111, Revision A, dated April 9, 2009, or later FAA approved revision. Maintained in accordance with document # UH606-100-ICAW Revision A, dated November 09, 2008, or later FAA approved revision.

FAA holder: Mechanical Specialties Inc

View record