FAA-listed STC holder
Cascade Flying Service LLC STCs
The Jun 30, 2026 FAA DRS snapshot lists 7 selected supplemental type certificates with status Current under Cascade Flying Service LLC. The records span 43 public aircraft directories and 3 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.
Modification mix
Aircraft represented
Recently revised records
Showing the 7 most recently revised records. Category directories provide the complete paginated discovery path.
7 displayed records.
Search every indexed record for this holder. The table below contains the recently revised records shown on this page.
| STC and modification | Aircraft / model / TC | Source status and dates | Holder and authority |
|---|---|---|---|
SA00888SEOption 1: Install Walter M601-E11S engine and a Hartzell HC-B3TW-3/T10282N+4 propeller or a Walter M601-E11 engine and an Avia V508-E-AG 106/A propeller per the Master Drawing List and Installation Instructions given in Approved Model List SA00888SE. (Note: Prior to July 17, 2002, the model M601-E11S engine was designated as the model M601-E11 engine). Option 2: Install a Walter M601-D11 engine and Avia V508-E-AG 106/A propeller per Cascade Flying Service Master Drawing List CFS-MDL-0001 Rev G, dated June 15, 2004, and Cascade Flying Service Document CFS-IM-107, Rev A, dated July 29, 2003, “Installation Instructions for Walter Turbine Installation on Air Tractor 300 & 400 Series Ag Aircraft,” or later FAA-approved revisions to these documents. NOTE: The Air Tractor model AT-400, AT-402B, AT-502, AT-502B, and AT-503A airplanes are not eligible for modification under option 2.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |
SA00905SEInstall modified engine cowl.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |
SA01402SEInstall modified engine cowl.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |
SA01420SEInstall a Walter M601-E11 or M601-D11 engine and Avia V508-E-AG 106/A propeller per Cascade Aircraft Conversions Master Drawing List FW-CAC090-90 Revision B, dated August 10, 2004, and Cascade Aircraft Conversions Document FW-CAC090-12, Revision IR, dated June 2, 2004, Installation Manual for Thrush Aircraft S2R Series, Walter Turbine Installation or later FAA approved revisions to either of these documents.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |
SA01560SEInstall modified engine cowl per Cascade Flying Service LLC data.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |
SR01845SEInstallation of a barrier air filtration system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |
SA00766SEInstallation of Hamilton Standard 3D40 Hub with Pacific Propeller AG-100-2 propeller blades.PropellersView record |
| Current at cited snapshot Application: | FAA holder: Cascade Flying Service LLC FAA authority record |