# STC SA3504NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Turboplus Aircraft Systems, Inc., United States - Description: Installation of a Turboplus, Inc., instrument sub-panel system - Applied: April 8, 1986 - Status date: February 24, 2017 - Product: Aircraft, Small Airplane - Certification basis: Part 3, Part 21 - Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO) - Certificate PDF: https://openairdocs.org/files/sha256/dc/cd/dccd7a37342a102bdee7cde7c70032a9e518f0bf70e7eda71e4a92dbdb7bbb02 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9A0AB470CE6440EC862580D50064079E.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA3504NM ## ADs that name it (0) None. ## Approved models (7) - Piper Aircraft Inc. PA-32-260 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32-301 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32RT-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32RT-300T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) ## 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. Page 1 of 2 Number SA3504NM This Certificate issued to Turboplus Aircraft Systems, Inc. 4117 35th Ave. NW Gig Harbor, WA 98335 Part 3 of the Civil Air Regulations Original Product Type Certificate Number : A3SO Piper PA-32-260, PA-32-300, PA-32R-300, PA-32RT-300, PA-32RT-300T, PA-32R-301, PA-32R-301T, & PA-32-301 Description of Type Design Change: Installation of a Turboplus, Inc., instrument sub-panel system in accordance with Turboplus Master Drawing List No. 23000, dated March 28, 1986, or later FAA approved revision. NOTE: The above sub-panel shall be located below the existing instrument panel on the right hand side. Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft. 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. Date of application : April 8, 1986 Date of issuance : June 2, 1986 Date reissued : 10/30/87; 2/24/92; 8/25/05; 10/15/07; 2/24/2017 Date amended : October 25, 2000 (Signature) Manager, Technical and Administrative Support Staff (Title) NOTE: **DO NOT DELETE THIS PAGE.** **DO NOT ADD ANY DATA TO THIS PAGE.** **THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.** Number SA4180NM Allied Eagles, LLC (Nevada LLC8556-2001) Reissued: 10/25/00; 8/25/05; 10/15/07 Amended: 10/25/00 Limitations and Conditions: (cont’d) The conditions and limitations of Type Certificate Data Sheet No. A7SO apply except where superseded by the following: MODEL PA-34-200T AND 220T (SENECA II AND III 7 PCLM (NORMAL CATEGORY) AS MODIFIED BY STC SA4180NM. PLACARD: AFFIX THE FOLLOWING PLACARD DIRECTLY TO THE MODEL ACD 100,000-1 INTERCOOLER: -END- **ACD CORPORATION** FAA-PMA P/N S/N ELIGIBLE: PA-34-200T, PA-34-220T ## Every issue (3) - February 24, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/dc/cd/dccd7a37342a102bdee7cde7c70032a9e518f0bf70e7eda71e4a92dbdb7bbb02) - October 15, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/f6/c3/f6c311b9f11afa50524e96eec40ace8ff736ee4ec57c8cd5f621ed2cbfec4e31) - August 25, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/33/a8/33a8a6a6b279c868e94a438c1188bc010cda7d45fae3a96c954c122800a13f5c) --- 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.