SA407CEAircraft structures
Installation of Hoskins Twilighter Mark III High Intensity Lighting System consisting of Model A Wing Tip Lights and Model D or Model P Tail Light.
FAA holder: BF Goodrich Aerospace
Aircraft STC directory
Raytheon Aircraft D18S STCs
The Jun 30, 2026 FAA DRS snapshot contains 69 selected supplemental type certificates with status Current whose public applicability data names the Raytheon Aircraft D18S. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
69
listed Current at snapshot
11
holder directories
11
modification categories
Sep 30, 2011
latest recorded revision
Modification demand surface
Other aircraft modifications16
Aircraft structures14
Landing gear and brakes8
Cabin and interiors8
Cargo and special mission5
Engine and powerplant4
Avionics4
Flight controls4
Fuel systems3
Propellers2
Aircraft performance1
Recently revised D18S STCs
Showing the 69 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA174CEEngine and powerplant
Twin-engine electronic sychronizer for aircraft equipped with Hartzell propellers.
FAA holder: Ontic Engineering and Manufacturing Inc.
SA1708WECargo and special mission
Removal of cargo door (approved under STC SA995WE) to permit aircraft to engage in special operations such as aerial photography, parachute jumping, etc.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA2-686Other aircraft modifications
Installation of Fiberglas Nose.
FAA holder: Staggerwing Museum Foundation Inc.
SA2437WEOther aircraft modifications
Modifications for increase in maximum weights.
FAA holder: Staggerwing Museum Foundation Inc.
SA111WELanding gear and brakes
Installed Volpar Mark IV tricycle landing gear.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA1171WELanding gear and brakes
Installation of two AiResearch TPE331 Series engines, tricycle landing gear, wing platform modifications, and related modifications.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA1832WELanding gear and brakes
Installation of Volpar Tricycle Landing Gear.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA2204WELanding gear and brakes
Installation of 2 AiResearch TPE331-1 series turbo prop engines with Hartzell HCB3TN propellers: 8-1/2 inches extension of fuselage and ventral fin, tricycle landing gear installation and related modifications.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA3385WEAircraft performance
Installation of AiResearch TPE 331-1-101B engines and increase gross weight to 11500 pounds.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA554WECabin and interiors
Installation of square topped stair cabin door.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA4-1397Landing gear and brakes
Installation of Tricycle landing gear and nose assembly.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA4-1531Landing gear and brakes
Installation of Tricycle landing gear and revised nose assembly with optional radome.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA4-1578Cabin and interiors
Removal of the main cabin entrance door and installation of stair door.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA4-1645Other aircraft modifications
Installation of Stewart-Warner Model 8259-A heater.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA4-769Fuel systems
Cambridge fuel air ratio analyzers.
FAA holder: Staggerwing Museum Foundation Inc.
SA2414WEOther aircraft modifications
Modification for increase in maximum weights.
FAA holder: Staggerwing Museum Foundation Inc.
SA289WEOther aircraft modifications
Carburetor air scoops.
FAA holder: Staggerwing Museum Foundation Inc.
SA290WELanding gear and brakes
Main landing gear doors.
FAA holder: Staggerwing Museum Foundation Inc.
SA3-632Aircraft structures
Beech Kit 581-1, except angle of incidence change (Item 602) and stall strips (Item 607c) of Spec. A-765; with STC SA2-383, with or without STC's SA2-204 and SA3-409; and wing spar mod. Maximum gross weight: takeoff 9,500 lbs., landing 9,400 lbs.
FAA holder: Staggerwing Museum Foundation Inc.
SA305WECabin and interiors
Cabin modified to G18 configuration.
FAA holder: Staggerwing Museum Foundation Inc.
SA332WEPropellers
Propeller spinners and increase in maximum continuous power to 450 hp.
FAA holder: Staggerwing Museum Foundation Inc.
SA4-1116Other aircraft modifications
Three additional windows.
FAA holder: Staggerwing Museum Foundation Inc.
SA4-1595Engine and powerplant
Installed American Turbine Engine Co. drawing B-138 divan.
FAA holder: Staggerwing Museum Foundation Inc.
SA4-718Engine and powerplant
Installed auxiliary nose fuel tanks per American Turbine Engine Company Drawing B-3, Sheet 1, Sheet 2 and Sheet 3.
FAA holder: Staggerwing Museum Foundation Inc.
SA02217AK (5 OF 5Other aircraft modifications
Installation of Garmin AT Model GDL90 UAT Data Link System, in accordance with Garmin AT, Inc., GDL 90 UAT Master Data List, P/N 560-0278-01, Revision A, dated November 12, 2004, or later FAA approved revision.
FAA holder: Garmin AT Inc.
SA1016WEOther aircraft modifications
Installation of United Aircraft of Canada Ltd. PT6 series engines.
FAA holder: Staggerwing Museum Foundation Inc.
SA1059WECargo and special mission
Cargo door in fuselage.
FAA holder: Staggerwing Museum Foundation Inc.
SA1154CEOther aircraft modifications
Install crack detection system.
FAA holder: Staggerwing Museum Foundation Inc.
SA120WECabin and interiors
Installation of Interior Arrangements.
FAA holder: Staggerwing Museum Foundation Inc.
SA1905WEAircraft structures
Installation of cockpit exterior door on left side.
FAA holder: Staggerwing Museum Foundation Inc.
SA1998WEFlight controls
Installation of Bendix Model M-4C automatic flight control system.
FAA holder: Staggerwing Museum Foundation Inc.
SA1999WECargo and special mission
Installation of cargo floor.
FAA holder: Staggerwing Museum Foundation Inc.
SA2353WECargo and special mission
Installation of cargo pod.
FAA holder: Staggerwing Museum Foundation Inc.
SA2494WEFlight controls
Installation of extended nose section and modification to the elevator down spring system. (THESE MODELS MUST INCOPRORATE THE PROVISIONS OF STC SA2437WE TO BE ELIGIBLE FOR MODIFICATION.).
FAA holder: Staggerwing Museum Foundation Inc.
SA2737WEAircraft structures
Installation of spar strap extension to outboard wing panel.
FAA holder: Staggerwing Museum Foundation Inc.
SA2794WEAvionics
A Bendix M-4C Autopilot System is installed.
FAA holder: Staggerwing Museum Foundation Inc.
SA2815WEAircraft structures
Removal of fabric covering from the wing flaps, ailerons, rudders and elevators and replace and recover these surfaces with aluminum.
FAA holder: Staggerwing Museum Foundation Inc.
SA34WEFuel systems
Two 42.5-gallon auxiliary fuel tanks.
FAA holder: Staggerwing Museum Foundation Inc.
SA4-1323Aircraft structures
Installation of stair type entrance door, rectangular windows and outside opening baggage compartment.
FAA holder: Staggerwing Museum Foundation Inc.
SA4-1365Other aircraft modifications
Installation of two combustion heaters in nose for model D18S, serial number 99 ONLY.
FAA holder: Staggerwing Museum Foundation Inc.
SA4-1584Other aircraft modifications
Installation of two-piece plexi- glass windshield.
FAA holder: Hamilton Avn Co Inc
SA4-879Fuel systems
Installation of 37-gallon auxiliary fuel tank in each outboard wing.
FAA holder: Staggerwing Museum Foundation Inc.
SA572WEEngine and powerplant
Increase in gross weight to 10,100 pounds. When aircraft has been modified, installation of nacelle vent manifold optional.
FAA holder: Staggerwing Museum Foundation Inc.
SA74WEFlight controls
Modification of horizontal stabilizer and attachment to provide 1-1/2 degree angle of incidence increase and elevator down spring installation.
FAA holder: Staggerwing Museum Foundation Inc.
SA980WEOther aircraft modifications
Modification made per FAA sealed summary, Drawing 25600, Sheet 3.
FAA holder: Staggerwing Museum Foundation Inc.
SA989WEOther aircraft modifications
Installation of revised carburetor air mixing chamber and ram airscoop.
FAA holder: Staggerwing Museum Foundation Inc.
SA389SOFlight controls
Install cargo door; metalized ailerons, elevator, rudders, wing flaps.
FAA holder: Quint Nicholas M
SA587GLCargo and special mission
Door handle-latch mechanism installed in forward cargo door which have been modified per STC SA995WE only.
FAA holder: Quint Nicholas M
SA565WEAircraft structures
Installation of wing tips per FAA Sealed Drawing No s. ASP-2029 and API-2030.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA572EAPropellers
Installation of Goodrich Model 5735K deicer kit (P/N 5735 deicer boot, P/N D-5735-1 cable, P/N 5735H hardware kit). Limited to aircraft which incorporate Goodrich Propeller Deicing Systems equipped with Goodrich Propeller Deicer Boot P/N 4E1185-5 on Hartzell propellers as listed on STC SA572EA eligibility list.
FAA holder: Goodrich Corp.
SA3-277Cabin and interiors
Modify existing cabin port hole windows.
FAA holder: Staggerwing Museum Foundation Inc.
SA3-278Other aircraft modifications
Installation of baggage compartment.
FAA holder: Staggerwing Museum Foundation Inc.
SA3-279Avionics
Nose section modification including E18S type nose cone and cover assembly installation of radar and radio racks.
FAA holder: Staggerwing Museum Foundation Inc.
SA3-280Landing gear and brakes
Type E18S tail wheel fork and truss assembly.
FAA holder: Staggerwing Museum Foundation Inc.
SA3-343Cabin and interiors
Installation of one only, standard cabin window between bulkheads #8 and #9 right side opposite cabin door.
FAA holder: Staggerwing Museum Foundation Inc.
SA915GLOther aircraft modifications
Surrendered and incorporated into STC SA00478CH.
FAA holder: Cooper Aviation Supply Company, Inc.