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 H18 STCs
The Jun 30, 2026 FAA DRS snapshot contains 30 selected supplemental type certificates with status Current whose public applicability data names the Raytheon Aircraft H18. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
30
listed Current at snapshot
8
holder directories
8
modification categories
Sep 30, 2011
latest recorded revision
Modification demand surface
Aircraft structures10
Other aircraft modifications8
Cargo and special mission4
Landing gear and brakes3
Engine and powerplant2
Aircraft performance1
Flight controls1
Avionics1
Recently revised H18 STCs
Showing the 30 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA899EAOther aircraft modifications
Installation of Grimes three-light strobe system as a supplemental light system.
FAA holder: Honeywell International Inc.
SA174CEEngine and powerplant
Twin-engine electronic sychronizer for aircraft equipped with Hartzell propellers.
FAA holder: Ontic Engineering and Manufacturing 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.
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.
SA285WEOther aircraft modifications
Nose strut snubber installation.
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.
SA3126WEAircraft structures
Installation of pilot cockpit door.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA468WEAircraft structures
Replacement of round window between Bulkhead Nos. 9 and 10 with Beech Super 18 type window.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA4-1645Other aircraft modifications
Installation of Stewart-Warner Model 8259-A heater.
FAA holder: SOUTHWESTERN AERO EXCHANGE INC.
SA2414WEOther aircraft modifications
Modification for increase in maximum weights.
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.
SA1154CEOther aircraft modifications
Install crack detection system.
FAA holder: Staggerwing Museum Foundation Inc.
SA1956WECargo and special mission
Installation of fuselage aft cargo door.
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.
SA2493WEAircraft structures
Installation of cockpit exterior door.
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.
SA2736WEAircraft structures
Installation of pilot cockpit door.
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.
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.
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