Aircraft STC directory
Textron Aviation 335 STCs
The Jun 30, 2026 FAA DRS snapshot contains 7 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 335. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
7
listed Current at snapshot
3
holder directories
3
modification categories
Sep 25, 2019
latest recorded revision
Modification demand surface
Recently revised 335 STCs
Showing the 7 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Fabrication and Installation of Dahlia Doubler.
FAA holder: Fliegen Works Inc.
Fabrication and Installation of Panida Doubler.
FAA holder: Fliegen Works Inc.
Fabrication and Installation of Panida Doubler.
FAA holder: Fliegen Works Inc.
Installation of a Skymech rear spar replacement kit.
FAA holder: Skymech LLC
Option 1: Install Vortex Generators on vertical stabilizer in accordance with RAM Drawing No. 1474 Rev. B. dated March 4, 1991 or later FAA approved revision. Option 2: Same as Option 1, except no change in airspeeds; Supplemental Flight Manual not required. Option 3: Install vortex generators on vertical stabilizer and wing top.
FAA holder: RAM Aircraft, Limited Partnership
Installation of an Avidyne EXP5000 Primary Flight Display (PFD).
FAA holder: Star Aviation