SR04637CHElectrical systems
Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel.
FAA holder: Airwolf Aerospace LLC
Aircraft STC directory
Siam Hiller Holdings UH-12E STCs
The Jun 30, 2026 FAA DRS snapshot contains 6 selected supplemental type certificates with status Current whose public applicability data names the Siam Hiller Holdings UH-12E. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
6
listed Current at snapshot
5
holder directories
4
modification categories
Jan 11, 2024
latest recorded revision
Modification demand surface
Other aircraft modifications3
Electrical systems1
Engine and powerplant1
Fuel systems1
Recently revised UH-12E STCs
Showing the 6 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SH1152NWOther aircraft modifications
Installation of the Automatic Flagman Model 135 Control Stick Grip.
FAA holder: Air Products & Parts LLC
SR01845SEOther aircraft modifications
Installation of a barrier air filtration system.
FAA holder: Cascade Flying Service LLC
SR00420NYEngine and powerplant
Installation of Airwolf remote mounted engine oil filter Model AFC-600.
FAA holder: Airwolf Filter, Corp
SR01802WIFuel systems
To allow the use of UL91 or UL94 (minimum) grade aviation fuel per ASTM D7547.
FAA holder: Swift Fuels LLC
SH849NWOther aircraft modifications
Installation of North American Industries, Inc., Model No. 5 Automatic Flagman.
FAA holder: R-S Sales Inc.