Skip to content

Aircraft STC directory

Boeing DC3C-S1C3G STCs

The Jun 30, 2026 FAA DRS snapshot contains 90 selected supplemental type certificates with status Current whose public applicability data names the Boeing DC3C-S1C3G. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

90
listed Current at snapshot
16
holder directories
14
modification categories
Nov 12, 2024
latest recorded revision

Modification demand surface

Other aircraft modifications35Cabin and interiors10Aircraft structures8Engine and powerplant7Avionics5Fuel systems5Landing gear and brakes4Electrical systems4Aircraft connectivity3Cargo and special mission3Aircraft performance2Flight controls2Safety and emergency equipment1Propellers1

Recorded holders

Sabreliner Aviation LLC25Signature Flight Support Corporation23Preferred Improvements LLC19Basler Turbo Conversions LLC6Greenwich Aircraft Corporation3Nexus Climate Control LLC1Airwolf Filter Corporation1Standard Aero Business Aviation Services LLC1A & L Aircraft Parts Inc1Pro Star Aviation, LLC1StandardAero Business Aviation Services, LLC1SkyTrac Systems Ltd.1United Aeronautical Corporation1Aviation Products Systems Inc.1Oilamatic Inc1Rockwell Collins Inc1

Recently revised DC3C-S1C3G STCs

Showing the 90 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.