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Aircraft STC directory

Sikorsky Aircraft S-76D STCs

The Jun 30, 2026 FAA DRS snapshot contains 12 selected supplemental type certificates with status Current whose public applicability data names the Sikorsky Aircraft S-76D. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

12
listed Current at snapshot
11
holder directories
5
modification categories
Sep 30, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications7
Cabin and interiors2
Safety and emergency equipment1
Aircraft connectivity1
Fuel systems1

Recorded holders

Helifab Inc2Avio Design Group Inc1Whelen Aerospace Technologies1Aviation Specialties Unlimited Inc.1HELIFAB1Honeywell International1LifePort LLC1Dart Aerospace USA Inc.1Mayday Avionics Inc1Aero Dynamix Inc.1Rotorcraft Support Inc1

Recently revised S-76D STCs

Showing the 12 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.