Aircraft STC directory

Ayres S2R-R1340 STCs

The Jun 30, 2026 FAA DRS snapshot contains 8 selected supplemental type certificates with status Current whose public applicability data names the Ayres S2R-R1340. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

listed Current at snapshot

holder directories

modification categories

Jun 19, 2018

latest recorded revision

Modification demand surface

Engine and powerplant4

Other aircraft modifications3

Propellers1

Recorded holders

Turbine Conversions Ltd1 M-20 Oil Separators LLC1 Kawak Aviation Technologies Inc1 Johnson Airspray Inc.1 Horizon Instruments Inc1

Recently revised S2R-R1340 STCs

Showing the 8 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA00902CHEngine and powerplantRevised Jun 19, 2018

Installation of Walter a.s. turboprop engine model M601D-11 or M601E-11 with Avia Propeller Ltd. model V510, V510AG, V508E-AG/99A or V508E-AG/106A in accordance with Turbine Conversions Ltd. Drawing List, Report WAL2000, Revision A, dated March 4, 2005, or later approved revision.

FAA holder: Turbine Conversions Ltd

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SA00172SEPropellersRevised Dec 3, 2013

Installation of the following Garrett engines: TPE331-1-151A, -151K, -151G; TPE331-2-201A, -201C, or TPE331-6-252M, -252B, -252T, in combination with a Hartzell HC-B3TN-5(M)/T10282+4 propeller.

FAA holder: Valley Air Service Inc

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SA02033AT (PAGE 6)Engine and powerplantRevised Jul 24, 2008

Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW).

FAA holder: M-20 Oil Separators LLC

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SA00034SEOther aircraft modificationsRevised May 31, 2006

Installation of AG-Air Systems, Inc., chemical disbursement system. (S2R modified per STC SA5953NM and S2R-G10 modified per STC SA00172SE).

FAA holder: Kawak Aviation Technologies Inc

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SA01440ATEngine and powerplantRevised Jul 16, 2004

Installation of Motorlet Model Walter M601E-11 engine and an AVIA-Hamilton Standard Aviation-Ltd. Model VJ8.510 propeller.

FAA holder: Johnson Airspray Inc.

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SA01639NYOther aircraft modificationsRevised Jun 1, 2004

Replacement of 12 refrigerant in air conditioning system with Enviro Refrigerant Hotshot R414B.

FAA holder: Scale Modelbuilders Inc.

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SA00622LAEngine and powerplantRevised Jan 14, 2002

Installation of an electronic digital engine tachometer horizon model P-1000.

FAA holder: Horizon Instruments Inc

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SA00962LAOther aircraft modificationsRevised Apr 24, 2000

Installation of Weath-Aero FE300 cockpit controllable spray pump fan system.

FAA holder: Weath-Aero Co., Inc.

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