SA02408AKOther aircraft modifications
Installation of the LoPresti Speed Mods Cowlabunga Cowling System for Cessna 177RG aircraft.
FAA holder: Whelen Aerospace Technologies
Aircraft STC directory
Textron Aviation 177RG STCs
The Jun 30, 2026 FAA DRS snapshot contains 9 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 177RG. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
9
listed Current at snapshot
6
holder directories
4
modification categories
Jan 24, 2023
latest recorded revision
Modification demand surface
Other aircraft modifications3
Propellers3
Aircraft structures2
Landing gear and brakes1
Recently revised 177RG STCs
Showing the 9 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA1049CEAircraft structures
Installation of wing leading edge cuffs and vertical stabilizer vortex generators.
FAA holder: Curry Aviation LLC
SA01827WIOther aircraft modifications
Installation of LED Position Lights.
FAA holder: Aero-Mach Wilco LLC
SA2791CELanding gear and brakes
Installation of wing mounted convex mirror, for inspection of nose and main landing gear position.
FAA holder: Aero-Mach Wilco LLC
SA04200CHPropellers
Installation of Hartzell propeller model HC-C2YR-IBFP/F7894.
FAA holder: Hartzell Propeller Inc
SA09871ACPropellers
Installation of a Hartzell HC-C2YR-1N/NG8301-5 propeller.
FAA holder: General Aviation Modifications, Inc.
SA03699NYPropellers
The installation of MT-Propeller Entwicklung GmbH's Model# MTV-9-B/198-52 3-Blade constant speed propeller.
FAA holder: MT- Propeller Entwicklung GmbH