# STC SA00310BO - Type: Supplemental type certificate - Status: Current, Issued - Holder: Avidyne Corporation, United States - Description: Model DFC90, p/n 700-00170-002, loaded with Release 2 software (or later FAA approved release) OR Model DFC100, p/n 700-00170-003, loaded with Release 2 software (or later FAA approved release) Avidyne Corporation Autopilot as a replacement for the S-TEC System 55X Autopilot, p/n 1192-( )-( ), in accordance with the Avidyne Corporation Master Document List, Document AVDFC-077, Rev 02, dated November 16, 2011, or later FAA-approved revisions. - Applied: March 27, 2011 - Status date: November 7, 2011 - Product: Aircraft - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A25SO](https://openairdocs.org/tcds/A25SO) - Certificate PDF: https://openairdocs.org/files/sha256/ef/e3/efe3114cc489e1257c472d3d401811a480e7431c6cf1598a7662e7b4cae96d5c - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6DD5DAED762961EE8625795E0070D34E.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA00310BO ## ADs that name it (0) None. ## Approved models (2) - Piper Aircraft Inc. PA-46-350P ([TCDS A25SO](https://openairdocs.org/tcds/A25SO)) - Piper Aircraft Inc. PA-46R-350T ([TCDS A25SO](https://openairdocs.org/tcds/A25SO)) ## 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 23 of the Federal Aviation Regulations. Installation of:  Model DFC90, p/n 700-00170-002, loaded with Release 2 software (or later FAA approved release) OR  Model DFC100, p/n 700-00170-003, loaded with Release 2 software (or later FAA approved release) Avidyne Corporation Autopilot as a replacement for the S-TEC System 55X Autopilot, p/n 1192-( )-( ), in accordance with the Avidyne Corporation Master Document List, Document AVDFC-077, Rev 02, dated November 16, 2011, or later FAA-approved revisions. 1. Operation must be in accordance with Avidyne Corporation Aircraft Flight Manual Supplement (AFMS) as follows: For DCF90: Document 600-00285-000, Rev 00, FAA appr oved on November 17, 2011, or later FAA-approved revision. For DFC100: Document 600-00288-000, Rev 00, FAA approved on November 17, 2011, or later FAA-approved revision. The AFMS must be carried in the aircraft during all flights. (Limitations and Conditions continued on Page 3 of 3) Avidyne Corporation 55 Old Bedford Road Lincoln, Massachusetts 01773 A25SO Make : Piper Aircraft, Inc. Model : PA-46-350P, PA-46R-350T Date of application : March 27, 2011 Date of issuance : November 17, 2011 ( Signature) Robert G. Mann Manager Boston Aircraft Certification Office ( Title) United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA00310BO November 17, 2011 FAA Form 8110-2-1(10-69) Page 2 of 3 Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) ( City, State, and ZIP code) from (Name of grantor)(Print or type) (Address of grantor) (Number & street) (City, State, and ZIP code) Signature of grantor ( In ink): United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA00310BO November 17, 2011 FAA Form 8110-2-1(10-69) Page 3 of 3 Limitations and Conditions: (continued from Page 1 of 3) 2. Maintenance must be in accordance with Instructions for Continued Airworthiness (ICA), Document AVDFC-083, Rev 02, dated November 15, 2011 or later FAA accepted revision. The ICA must be made available to the operator at the time of installation. 3. Aircraft must be configured with an existing S-TEC 55X (or 55SR) Autopilot and with an existing Avidyne Flight Display System as follows in order to accomplish this STC: For DCF90: Avidyne Primary Flight Display, p/n 700-00006-( ), loaded with Release 8.0.4 software (or later FAA approved release) with Modification 55 installed. For DFC100: Avidyne Integrated Flight Display, p/n 700-00083-( ) loaded with Release 9.2.1 software (or later FAA approved release). See STC SA00282BO. 4. Compatibility of this design with previously approved modifications must be determined by the installer. Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Piper Aircraft, Inc. PA-46-350P and PA-46R-350T aircraft is as follows: a. The type certification basis for Piper Aircraft, Inc. PA-46-350P and PA-46R-350T is shown on TCDS A25SO for parts not changed or not affected by the change. b. The certification for parts changed or affected by the change since the reference application date, March 27, 2011, is based upon part 23 as amended by Amendment 23-59. Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be: Regulations at the latest amendment 23-0 through 23-57 23.301, 23.303, 23.305, 23.307(a), 23.337(a)(1)(b)(1), 23.561(a)(b)(3)(e), 23.601 - 23.613, 23.619, 23.625, 23.771(a), 23.773(a)(2), 23.777(a)(b), 23.867(a)(b), 23.1301, 23.1308(b), 23.1309(a)(1)(2)(b)(e), 23.1311(a)(2)(3)(4)(6), 23.1322, 23.1329, 23.1335, 23. 1351(a)(1)(2)(i)(b)(1)(e), 23.1357(a)(2)(b)(c)(d), 23.1359(c), 23.1365(a)(b)(d)(e)(f), 23.1367, 23.1381(a)(b ), 23.1431(a)(b)(e), 23.1501, 23.1523, 23.1525, 23.1529, 23.1541(a), 23.1555(a)(b), 23.1581(a)(b)(2)(3)(f), 23.1583(m), 23.1585(j) Regulations at an intermediate amendment None Regulations at the amendment level in TCDS A25SO 23.25 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 (1) - November 7, 2011: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ef/e3/efe3114cc489e1257c472d3d401811a480e7431c6cf1598a7662e7b4cae96d5c) --- 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.