SA543SWEngine and powerplant
Installation of Alcor turbocharger on aircraft modified to Continental IO-470-H engines.
FAA holder: Alcor LLC
Aircraft STC directory
Sierra Hotel Aero Navion D STCs
The Jun 30, 2026 FAA DRS snapshot contains 21 selected supplemental type certificates with status Current whose public applicability data names the Sierra Hotel Aero Navion D. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
21
listed Current at snapshot
10
holder directories
6
modification categories
May 27, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications6
Engine and powerplant4
Landing gear and brakes4
Flight controls4
Avionics2
Aircraft connectivity1
Recently revised Navion D STCs
Showing the 21 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA7088NMEngine and powerplant
Installation of a Teledyne Continental Motors IO-550B engine; McCauley D3A32C409C/82NDB-2 propeller; tubular engine mount; cowling; baffles; air induction system; and cowl flap mechanism.
FAA holder: Navion Customs LLC
SA758WELanding gear and brakes
Installation of modified Navion main landing gear wheel and axle. Eligible only on the Navion aircraft models which have Goodrich (Hayes expander tube brakes) wheels Models 6057MD or G-14-720-NO-1.
FAA holder: General Aviation Modifications Inc.
SA00382BO (PAGE 2)Aircraft connectivity
Installation of Globalstar Antenna and Cradle provisions to support a Globalstar GPS-1700 in non-composite airplanes.
FAA holder: Avidyne Corporation
SA604WEAvionics
Installation of Brittain Industries, Inc. Model B-4 Flight Control System, including PC-1 Pitch Assist, AH-1 Altitude Hold and NAV-1 Navigation Coupler.
FAA holder: Brittain Industries, Inc
SA01772CHOther aircraft modifications
Installation of C&D Associates Combustion Heater Kit P/N CD11007K8.
FAA holder: Hartzell Engine Technologies, LLC
SA02487CHOther aircraft modifications
Installation of C&D Associates Combustion Heater Kit 23 (P/N CD12008K23R or CD12016K23R) or Kit 27 (P/N CD12017K27L or CD12018K27L).
FAA holder: Hartzell Engine Technologies, LLC
SA02547AT (PG 3)Other aircraft modifications
Installation of a Voice Alert System.
FAA holder: Aircraft Components Inc
SA750SWOther aircraft modifications
Installation of tiptank fairings and drain cover.
FAA holder: Russell Herrington
SA751SWLanding gear and brakes
Revised nose gear doors and fixed main gear wheel fairings.
FAA holder: Russell Herrington
SA3786WEEngine and powerplant
Installation of a tubular engine mount, cowling cooling baffles, air induction system, and cowl flap mechanism.
FAA holder: Navion Customs, LLC
SA4154WEEngine and powerplant
Installation of tubular engine mount, cowling, cooling baffles, air induction system and cowl flap mechanism.
FAA holder: Navion Customs, LLC
SA4358WELanding gear and brakes
Installation of landing gear door kit.
FAA holder: Navion Customs, LLC
SA878WEFlight controls
Installation of Navion/Brittain Model N-2 Flight Control System.
FAA holder: Brittain Industries, Inc
SA2120WEFlight controls
Installation of Brittain Industries NAV-2B flight control system.
FAA holder: Brittain Industries, Inc
SA1488WEFlight controls
Installation of Brittain Industries, Inc. Model B2C Flight Control System.
FAA holder: Brittain Industries, Inc
SA09384AC-DFlight controls
Installation of S-TEC manual electic trim system, model ST-835.
FAA holder: S-TEC Corporation
SA09284AC-DOther aircraft modifications
Installation of S-TEC System 30 ALT Altitude Hold System, Model ST-725.
FAA holder: S-TEC Corporation
SA09019AC-DOther aircraft modifications
Installation of S-TEC System 55 two axis automatic flight guidance system with optional autotrim system, Model ST-580.
FAA holder: S-TEC Corporation
SA00899SELanding gear and brakes
Modification of Hat Aux. Landing Gear Drag Brace Support, P/N 145-34161 to P/N 145-34161DOC in accordance with Deluca of California, Inc. Drawing List 145-34161DOC-DL, Revision N/C, dated March 29, 1996, or later FAA approved revision.
FAA holder: Deluca of California Inc.