FAA-listed STC holder

Cascade Aircraft conversions LLC STCs

The Jun 30, 2026 FAA DRS snapshot lists 5 selected supplemental type certificates with status Current under Cascade Aircraft conversions LLC. The records span 37 public aircraft directories and 2 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

aircraft directories

modification categories

Feb 20, 2024

latest recorded revision

Recently revised records

Showing the 5 most recently revised records. Category directories provide the complete paginated discovery path.

5 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

Cascade Aircraft conversions LLC supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
SA02718SE The installation of a Pratt & Whitney PT6A-140AG engine, Avia propeller V508H/108B/A or Hartzell propeller HC-B4TN-3C/T10702N(S), fuel system and aerodynamic modifications on S2R-T34 and S2R-H80 airplanes, and installation of rudder aileron interconnect on S2R-H80 airplanes,. Engine and powerplant View record	Thrush Aircraft S2R-H80TC A4SW Thrush Aircraft S2R-T34TC A4SW	Current at cited snapshot Revised Feb 20, 2024 Application: Oct 15, 2018	FAA holder: Cascade Aircraft Conversions LLC FAA authority record
SA02499SE Installation of a Pratt & Whitney PT6A-41, PT6A-42, or PT6A-42A engine and a Avia V508H/106B/A propeller. Engine and powerplant View record	Thrush Aircraft S2R-G1TC A4SW Thrush Aircraft S2R-G10TC A4SW Thrush Aircraft S2R-G5TC A4SW Thrush Aircraft S2R-G6TC A4SW Thrush Aircraft S2R-R1340TC A4SW Thrush Aircraft S2R-R1820TC A4SW Thrush Aircraft S2R-R3STC A4SW Thrush Aircraft S2R-T11TC A4SW Thrush Aircraft S2R-T15TC A4SW Thrush Aircraft S2R-T34TC A4SW Thrush Aircraft S2R-T45TC A4SW Thrush Aircraft S2R-T65TC A4SW Thrush Aircraft S2RTC A4SW	Current at cited snapshot Revised Feb 24, 2022 Application: Jul 17, 2013	FAA holder: Cascade Aircraft conversions LLC FAA authority record
SA02205SE Installation of a replacement airframe fuel pump in accordance with Cascade Flying Service Master Drawing List FW-CFS545-90, Rev. B, dated October 19, 2011, or later FAA approved revision. Fuel systems View record	Air Tractor AT-401TC A17SW Air Tractor AT-401ATC A17SW Air Tractor AT-401BTC A17SW Air Tractor AT-402TC A17SW Air Tractor AT-402ATC A17SW Air Tractor AT-402BTC A17SW Air Tractor AT-502TC A17SW Air Tractor AT-502BTC A17SW Air Tractor AT-503TC A17SW Air Tractor AT-503ATC A17SW Air Tractor AT-602TC A19SW Air Tractor AT-802TC A19SW Air Tractor AT-802ATC A19SW Air Tractor AT-300TC A9SW Air Tractor AT-301TC A9SW Air Tractor AT-302TC A9SW Air Tractor AT-400TC A9SW Air Tractor AT-400ATC A9SW Thrush Aircraft S-2RTC A4SW Thrush Aircraft S2R-G1TC A4SW Thrush Aircraft S2R-G10TC A4SW Thrush Aircraft S2R-G5TC A4SW Thrush Aircraft S2R-G6TC A4SW Thrush Aircraft S2R-R1340TC A4SW Thrush Aircraft S2R-R1820TC A4SW Thrush Aircraft S2R-R3STC A4SW Thrush Aircraft S2R-T11TC A4SW Thrush Aircraft S2R-T15TC A4SW Thrush Aircraft S2R-T34TC A4SW Thrush Aircraft S2R-T45TC A4SW Thrush Aircraft S2R-T65TC A4SW Thrush Aircraft S2R-T660TC A4SW Thrush Aircraft S2RHG-T34TC A4SW Thrush Aircraft S2RHG-T65TC A4SW	Current at cited snapshot Revised Mar 23, 2018 Application: Aug 3, 2010	FAA holder: Cascade Aircraft conversions LLC FAA authority record
SA02414SE Installation of a Pratt & Whitney PT6A-41, PT6A-42 or PT6A-42A engine and Avia V508H/106B/A propeller. Engine and powerplant View record	Air Tractor AT-502TC A17SW Air Tractor AT-502BTC A17SW	Current at cited snapshot Revised Aug 28, 2014 Application: Nov 20, 2012	FAA holder: Cascade Aircraft conversions LLC FAA authority record
SA01537SE Increase wing tank fuel capacity of the above model aircraft in accordance with Cascade Aircraft Conversions LLC drawing S2R-100 Revision A, dated April 20, 2005, or later FAA revision to this drawing. Fuel systems View record	Thrush Aircraft 600 S-2DTC A4SW Thrush Aircraft S-2RTC A4SW Thrush Aircraft S2R-T34TC A4SW	Current at cited snapshot Revised Apr 27, 2005 Application: Dec 27, 2004	FAA holder: Cascade Aircraft conversions LLC FAA authority record

Cascade Aircraft conversions LLC STCs

Modification mix

Aircraft represented

Recently revised records

The installation of a Pratt & Whitney PT6A-140AG engine, Avia propeller V508H/108B/A or Hartzell propeller HC-B4TN-3C/T10702N(S), fuel system and aerodynamic modifications on S2R-T34 and S2R-H80 airplanes, and installation of rudder aileron interconnect on S2R-H80 airplanes,.

Installation of a Pratt & Whitney PT6A-41, PT6A-42, or PT6A-42A engine and a Avia V508H/106B/A propeller.

Installation of a replacement airframe fuel pump in accordance with Cascade Flying Service Master Drawing List FW-CFS545-90, Rev. B, dated October 19, 2011, or later FAA approved revision.

Installation of a Pratt & Whitney PT6A-41, PT6A-42 or PT6A-42A engine and Avia V508H/106B/A propeller.

Increase wing tank fuel capacity of the above model aircraft in accordance with Cascade Aircraft Conversions LLC drawing S2R-100 Revision A, dated April 20, 2005, or later FAA revision to this drawing.