# STC SA01681SE - Type: Supplemental type certificate - Status: Current, Amended - Holder: Micro AeroDynamics Inc, United States - Description: Installation of vortex generators on the wings, horizontal and vertical tail surfaces (all models), and an increase in maximum zero fuel weight (PA-34-200T and PZL M20 03 only). - Applied: March 17, 2006 - Status date: October 25, 2006 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO), [TCDS A68EU](https://openairdocs.org/tcds/A68EU) - Certificate PDF: https://openairdocs.org/files/sha256/e5/fa/e5faa2b333d7dea40936ec40cd7dbe5cc5af25e47c2738ac0209dfb7717894e2 - Approved model list and other attachments: [SA01681SE_AML.pdf](https://openairdocs.org/files/sha256/b5/16/b516ecd7275faf45db27686f9b143be3c63d863a912f436f29937a17c57b7492) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F502C6A304DDF22A8625760900758CAD.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA01681SE ## ADs that name it (0) None. ## Approved models (4) - PZL Mielec PZL M20 03 ([TCDS A68EU](https://openairdocs.org/tcds/A68EU)) - Piper Aircraft Inc. PA-34-200 ([TCDS A7SO](https://openairdocs.org/tcds/A7SO)) - Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO)) - Piper Aircraft Inc. PA-34-220T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO)) ## 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. Number SA01681SE This certificate, issued to Micro AeroDynamics, Inc. 4000 Airport Road, Suite D Anacortes, WA 98221 Part 23 of the Federal Aviation Regulations. Original Product⎯Type Certificate Number: *See attached FAA Approved Model List (AML) Make: No. SA01681SE for a list of approved airplane Model: models and applicable airworthiness regulations Description of the Type Design Change: Installation of vortex generators on the wings, horizontal and vertical tail surfaces (all models), and an increase in maximum zero fuel weight (PA-34-200T and PZL M20 03 only) in accordance with FAA-approved Micro AeroDynamics, Inc. Drawing Package MA2212, Revision A, dated August 14, 2006, and Installation Manual MA2213, Revision A, dated October 6, 2006, or later FAA-approved revisions to these documents. NOTE: If more than five vortex generators are damaged or missing, the aircraft is not airworthy. The increase in maximum zero fuel weight (PA-34-200T and PZL M20 03 only) is also applicable to installations done in accordance with Installation Manual MA2213, Revision IR dated May 15, 2006 Limitations and Conditions: Approval of this change in type design applies to the above aircraft only. This approval should not be extended to other aircraft on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any 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 and FAA-Approved Flight Manual Supplement MA2215 Revision IR dated October 25, 2006 (PA-34-200T and PZL M20 03 only) 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: March 17, 2006 Date reissued: Date of issuance: June 16, 2006 Date amended: October 25, 2006 FAA FORM 8110-2(10-68) By direction of the Administrator Thomas E. Archer, II (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) ### SA01681SE_AML.pdf FAA Approved Model List (AML) NO. SA01681SE Micro AeroDynamics Inc. For Vortex Generator Installation Original Issue Date: June 16, 2006 1 of 1 Item Aircraft Make Aircraft Model Original Type Certificate Number. Certification Basis for Alteration FAA Sealed Drawing List Number Date Rev Installation Instructions Number Date Rev POH/AFM Supplement Number Date Rev AML Revision Date 1. Piper PA-34-200 (Seneca) A7SO FAR 23 MA2212 08/14/06 A MA2213 10/06/06 A N/A 10/25/06 2. Piper PA-34-200T (Seneca II) A7SO FAR 23 MA2212 08/14/06 A MA2213 10/06/06 A MA2215 10/25/06 IR 10/25/06 3. Piper PA-34-220T (Seneca III, Seneca IV, Seneca V) A7SO FAR 23 MA2212 08/14/06 A MA2213 10/06/06 A N/A 10/25/06 4. WSK PZL Mielec PZL M20 03 “MEWA” A68EU FAR 23 MA2212 08/14/06 A MA2213 10/06/06 A MA2215 10/25/06 IR 10/25/06 Approved _______ Thomas E .Archer, II__________ Acting Manager, Seattle Aircraft C e r t i f i c a t i o n O f f i c e Amended: 10/25/06 ## Every issue (1) - October 25, 2006: Amended, Current. [certificate](https://openairdocs.org/files/sha256/e5/fa/e5faa2b333d7dea40936ec40cd7dbe5cc5af25e47c2738ac0209dfb7717894e2), [SA01681SE_AML.pdf](https://openairdocs.org/files/sha256/b5/16/b516ecd7275faf45db27686f9b143be3c63d863a912f436f29937a17c57b7492) --- 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.