# STC SA00902CH - Type: Supplemental type certificate - Status: Current, Amended - Holder: Turbine Conversions Ltd, United States - Description: 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. - Applied: December 2, 1996 - Status date: June 19, 2018 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW) - Certificate PDF: https://openairdocs.org/files/sha256/2d/64/2d64c84d081e0ab62a2034a3d18aca999dbcc69da376fa697d4ec1d6f2538a74 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E282BDBAC7AA7C8E862582CC00686209.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA00902CH ## ADs that name it (0) None. ## Approved models (13) - Ayres Corporation S-2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-G1 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-G10 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-G5 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-G6 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-R1340 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-R1820 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-R3S ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-T11 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-T15 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-T34 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-T45 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) - Ayres Corporation S2R-T65 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. 18155 120th Ave, P.O. Box 8 Nunica, MI 49448 Part 8 of the Civil Air Regulations. See Type Certificate Data Sheet A4SW for complete certification basis. A4SW Thrush Aircraft Inc. S-2R, S2R-T34, S2R-T15, S2R-R3S, S2R-R1340, S2R-R1820, S 2R-G6, S2R-G5, S2R-T11, S2R-T65, S2R-T45, S2R-G10, S 2R-G1 Description of Type Design Change: Installation of Walter a.s. turboprop engine model M601D-11, M601E-11; or GE Aviation Czech engine model H75-100, H75-200, H80, H80-100, H80-200 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 B, dated February 8, 2018, or later approved revision. 1. FAA Approved Airplane Flight Manual Supplement for Thrush Aircraft Inc. S2R - Series modified in accordance with this STC, Revision D, dated May 31, 2018, or later FAA approved revision, is required. Date of application : December 2, 1996 Date of issuance : July 2, 1998 Date reissued : Date amended : September 29, 1998; November 8, 1999; April 12, 2005, June 19, 2018 By direction of the Administrator Signature( ) Roy E Boffo III Manager, Propulsion and Program Management Section Chicago ACO Branch Compliance & Airworthiness Division Title( ) FAA F ORM 8110-2-1(10-69) PAGE 3 of 3 PAGES United States of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA00902CH Date of Issuance: July 2, 1998 Date Amended: June 19, 2018 Limitations and Conditions (Continued): 2. Aircraft specification limits are the same as listed on Type Certificate Data Sheet No. A4SW except as listed in the FAA Approved Airplane Flight Manual Supplement for Thrush Aircraft Inc. S2R - Series modified in accordance with this STC. 3. Limits for Walter a.s. turboprop engine model M601D-11, M601E-11 and GE Aviation Czech engine model H75-100, H75-200, H80, H80-100, H80-200 with Avia Propeller Ltd. model V510, 510AG, V508E-AG/99A or V508E-AG/106A are as published in the FAA Approved Airplane Flight Manual Supplement for the Thrush Aircraft Inc. S2R - Series modified in accordance with this STC. 4. The life limit for the Avia Propeller Ltd. models V510, V510AG, V508E-AG/99A and V508E-AG/106A, in accordance with Type Certificate Data Sheet Number P2BO or P21BO, and as referenced in the Avia maintenance manual, is 6,000 flight hours. 5. Power lever positions below flight idle (Beta range) when aircraft is in flight can result in severe overspeeding and/or loss of aircraft control. 6. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. ...End... ## Every issue (2) - June 19, 2018: Amended, Current. [certificate](https://openairdocs.org/files/sha256/2d/64/2d64c84d081e0ab62a2034a3d18aca999dbcc69da376fa697d4ec1d6f2538a74) - April 12, 2005: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/6b/30/6b302cef64d964062a7b1a76672d05503add2f94b4bc45f1464effc2978b1ebf) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.