# STC SA10594SC - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Knots 2U, Ltd, United States - Description: Modification of the Monroe Automotive Equipment Co. (MAECO) Shimmy Dampener. - Applied: August 30, 2006 - Status date: August 11, 2017 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15), [TCDS 2A13](https://openairdocs.org/tcds/2A13), [TCDS A1EA](https://openairdocs.org/tcds/A1EA), [TCDS A20SO](https://openairdocs.org/tcds/A20SO), [TCDS A3SO](https://openairdocs.org/tcds/A3SO), [TCDS A8EA](https://openairdocs.org/tcds/A8EA) - Certificate PDF: https://openairdocs.org/files/sha256/5f/1f/5f1f62efdca21c933cdd5f36c26dea8ffedf8c5924d9b7682bb31b6906b94ccc - Approved model list and other attachments: [SA10594SC_AML.pdf](https://openairdocs.org/files/sha256/f8/8e/f88ec1bba51622059ef27c56fd145ecddea99fcd627d492c588b64e0e7e6e3c7) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50187B7557A78BD8862581E700573598.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA10594SC ## ADs that name it (0) None. ## Approved models (42) - Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-24-400 ([TCDS 1A15](https://openairdocs.org/tcds/1A15)) - Piper Aircraft Inc. PA-28-140 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-150 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-151 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-160 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-161 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-180 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-181 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-235 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28-236 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-180 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-200 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-201 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28R-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28RT-201 ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-28RT-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13)) - Piper Aircraft Inc. PA-30 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA)) - Piper Aircraft Inc. PA-31 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31-300 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31-325 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31-350 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO)) - Piper Aircraft Inc. PA-31P ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - Piper Aircraft Inc. PA-31P-350 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - Piper Aircraft Inc. PA-31T ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - Piper Aircraft Inc. PA-31T1 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - Piper Aircraft Inc. PA-31T2 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA)) - 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-32-301T ([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-301 (HP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-32R-301 (SP) ([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)) - Piper Aircraft Inc. PA-32S-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO)) - Piper Aircraft Inc. PA-39 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA)) ## 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. FAA Form 8110-2 (5/14) Page 1 of 2 Number: SA10594SC Part * of the * Regulations. Original Product – Type Certificate Number: [see attached FAA Approved Model Make: List (AML) No. SA10594SC for Model: list of approved models and applicable airworthiness regulations] Modification of the Monroe Automotive Equipment Co. (MAECO) Shimmy Dampener installed on Piper Aircraft in accordance with Aircraft Door Seals, LLC Master Document List ADS-7551-121 Rev N/C, Dated November 6, 2006, and Installation Instructions ADS-7551-107 Rev N/C Dated October 31, 2006, or later FAA approved revisions. The installer must determine whether this design change is compatible with previously approved modificiatons. 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: August 30, 2006 Date Reissued: April 27, 2017; August 11, 2017 Date of Issuance: December 07, 2006 Date Amended: Signature Title Jim Grigg Manager, Fort Worth ACO Branch, Compliance & Airworthiness Division Knots 2U, Ltd. 709 Airport Dr. Burlington, WI 53105 FAA Form 8110-2 (5/14) Page 2 of 2 Transfer the ownership of Supplemental Type Certificate Number: SA10594SC To (Name and address of transferee) From (Name and address of grantor) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SE10076SC FAA Form 8110-2 (5/14) Page 3 of 3 ### SA10594SC_AML.pdf **FAA APPROVED MODEL LIST (AML)** SA10594SC Knots 2U, Ltd. 709 Airport Dr. Burlington, TX 76207 Date of issuance: December 7, 2006 Date of reissuance: April 27, 2017 Item Aircraft Make Aircraft Model Original Type Certificate Number Regulation/Part 1 Piper PA-24, PA-24-250, PA-24-260, PA-24-400 1A15 See TCDS 2 Piper PA-28-140, PA-28-150, PA-28-160, PA-28- 180, PA-28-201T, PA-28-235, PA-28R-180, PA-28R-200, PA-28R-201, PA-28-151, PA- 28-161, PA-28-181, PA-28RT-201, PA- 28RT-201T, PA-28R-201T, PA-28-236 2A13 See TCDS 3 Piper PA-32-260, PA-32-300, PA-32-301, PA-32R- 300, PA-32-301T, PA-32RT-300, PA-32RT- 300T, PA-32R-301 (HP), PA-32R-301 (SP), PA-32R-301T A3SO See TCDS 4 Piper PA-31P, PA-31P-350, PA-31T, PA-31T1, PA-31T2 A8EA See TCDS 5 Piper PA-31, PA-31-350, PA-31-325, PA-31-300 A20SO See TCDS 6 Piper PA-30, PA-39 A1EA See TCDS FAA Approved: ____________________________________ Jim Grigg, Manager Fort Worth ACO Branch, Compliance & Airworthiness Division Date: April 27, 2017 ## Every issue (2) - August 11, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/5f/1f/5f1f62efdca21c933cdd5f36c26dea8ffedf8c5924d9b7682bb31b6906b94ccc), [SA10594SC_AML.pdf](https://openairdocs.org/files/sha256/f8/8e/f88ec1bba51622059ef27c56fd145ecddea99fcd627d492c588b64e0e7e6e3c7) - December 7, 2006: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/11/83/1183c97041c5f3925384d23f25dd6590edc6fbcb2ccf992f16058d7b184bbca7) --- 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.