# STC SA4959SW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Turbine Conversions Ltd - Description: Revised engine inlet air filtration and intake geometry with PT6A-34 engine installed per STC SA3238WE in accordance with Frakes Aviation Drawing FA 7502, Sheets 1 through 10, dated 3/8/83. - Status date: May 10, 2011 - Data sheets: A4SW - Certificate PDF: https://openairdocs.org/files/sha256/15/e6/15e6a5ce832700df9b396f4f0bb03f12b396ba427aa07d3d469ba4f589057bdc - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6BBDA2C8C2937E5A862578BD006E849E.0001 - Page: https://openairdocs.org/stc/SA4959SW ## ADs that name it None. ## Approved models (1) - Thrush Aircraft Inc. S-2R (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. Part 8 of the Civil Air Regulations. Revised engine inlet air filtration and intake geometry with PT6A-34 engine installed per STC SA3238WE in accordance with Frakes Aviation Drawing FA 7502, Sheets 1 through 10, dated 3/8/83. STC SA3238WE is required with this modification. This approval is limited to the installation made in Ayres Model S-2R, Serial Number 2260R, only. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. Turbine Conversions, Ltd. 18155 120th Avenue Nunica, MI 49448 A4SW Make : Ayres Model : S-2R Date of application : February 15, 1983 Date of issuance : March 08, 1983 Date reissued : May 10, 2011 ( Signature) M. Monica Merritt, Manager Airplane Certification Office, Southwest Region ( Title) FAA Form 8110-2-1(10-69) Page 2 of 2 ## Every issue (1) - May 10, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/15/e6/15e6a5ce832700df9b396f4f0bb03f12b396ba427aa07d3d469ba4f589057bdc) --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.