Installation of Human External Cargo (HEC) system.
FAA holder: Boost Systems LLC
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 20 selected supplemental type certificates with status Current whose public applicability data names the Richards Heavylift Helo UH-1H. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 20 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Boost Systems LLC
FAA holder: Isolair Inc.
FAA holder: Isolair Inc.
FAA holder: Midwest Aerospace TC LLC
FAA holder: Midwest Aerospace TC LLC
FAA holder: Onboard Systems International
FAA holder: Aircraft Structural Repair Inc.
FAA holder: Helicopter Technology Co
FAA holder: Northwest Heli-Structures Inc
FAA holder: BLR Aerospace LLC.
FAA holder: BLR Aerospace LLC.
FAA holder: Airwolf Aerospace LLC
FAA holder: AKV Inc.
FAA holder: VTOL LLC
FAA holder: Vector Aerospace Helicopter Services USA Inc.
FAA holder: Dart Aerospace Limited
FAA holder: Minuteman Aviation Inc.
FAA holder: Bell Helicopter Textron Inc.
FAA holder: Bell Helicopter Textron Inc.