Aircraft STC directory
Rotorcraft Development UH-1H STCs
The Jun 30, 2026 FAA DRS snapshot contains 25 selected supplemental type certificates with status Current whose public applicability data names the Rotorcraft Development UH-1H. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Modification demand surface
Recorded holders
Recently revised UH-1H STCs
Showing the 25 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003.
FAA holder: Midwest Aerospace TC LLC
Installation of Onboard Systems International Cargo Hook Kit.
FAA holder: Onboard Systems International
Fabrication of the Onboard Model 200-095-00 Multi-Channel Electrical Slip-Ring Kit.
FAA holder: Onboard Systems International
Installation of a Tailboom Motion Detection System.
FAA holder: Aircraft Structural Repair Inc.
Installation of a Helicopter Technology Company main rotor blade assembly.
FAA holder: Helicopter Technology Co
Installation of a Service Deck.
FAA holder: Northwest Heli-Structures Inc
Fabrication of Dart D205-770-011 Replacement Engine Mount Kit.
FAA holder: Dart Aerospace USA Inc.
Fabrication of tail boom mounted strakes.
FAA holder: BLR Aerospace LLC.
Fabrication and Installation of Fast Fin System.
FAA holder: BLR Aerospace LLC.
Fabrication of Helipro spar replacement system.
FAA holder: Vector Aerospace Helicopter Services USA Inc.
Installation of extended height landing gear.
FAA holder: Dart Aerospace Limited
Installation of a VAn Horn Aviation Tail Rotor Blade.
FAA holder: Van Horn Aviation LLC
Installation of the Mechanical Specialties, Model UH606.
FAA holder: Mechanical Specialties Inc
Manufacture of Flitestep in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97166, no revision, dated December 19, 1997, or later FAA approved revisions, and installation per Aeronautical Accessories, Inc. Report AA-97087, Revision B, dated December 18, 1997, or later FAA approved revisions.
FAA holder: Bell Helicopter Textron Inc.
Installation of Aviation Development Corporation oil filter.
FAA holder: Aviation Development Corporation