# STC SA03115CH - Type: Supplemental type certificate - Status: Current, Issued - Holder: H.O. Aircraft Inc, United States - Description: Replacement of the original heel operated braking system with a toe brake operating system - Applied: August 19, 2011 - Status date: May 23, 2012 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS A-780](https://openairdocs.org/tcds/A-780), [TCDS 1A2](https://openairdocs.org/tcds/1A2) - Certificate PDF: https://openairdocs.org/files/sha256/c3/a8/c3a8bf47773108bee79481e091a587dd4c74f2f5e7aa24909b58796b60cacc76 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50A1DC7A916D195B86258114005B74AC.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA03115CH ## ADs that name it (0) None. ## Approved models (20) - FS 2003 Corp. PA-12 ([TCDS A-780](https://openairdocs.org/tcds/A-780)) - FS 2003 Corp. PA-12S ([TCDS A-780](https://openairdocs.org/tcds/A-780)) - Piper Aircraft Inc. PA-18 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18-105 (Special) ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18-125 (Army L-21A) ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18A ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18A-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18A-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18AS-125 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18AS-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18AS-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18S ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18S-105 (Special) ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18S-125 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18S-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-18S-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-19 (Army L-18C) ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) - Piper Aircraft Inc. PA-19S ([TCDS 1A2](https://openairdocs.org/tcds/1A2)) ## 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. 3 Civil Air (See Type Certificate Data Sheet No. 1A2 and A-780 for complete certification basis) Replacement of the original heel operated braking system with a toe brake operating system in accordance with Master Drawing List MDL-PMA-TBK, Revision C, dated 5/4/2012, and Installation Instructions IM- TBK-001, Revision IR, dated 8/30/2011, or later FAA approved revisions. 1) Compatibility of this design change with previously approved modifications must be determined by the installer. 2) A copy of this certificate must be maintained as part of the permanent records for the modified aircraft. 3) If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other p erson written evidence of that permission. H.O. Aircraft Inc. 8891 Airport Road, Box A-3 Blaine, MN 55449 1A2 and A-780 Piper PA-12, PA-12S, PA-18, PA-18S, PA-18 “105” Special, PA-18S “105” Special, PA-18A, PA-18 “125” (Army L-21A), PA-18S "125", PA-18AS "125", PA-18 "135" (Army L-21B), PA-18A "135", PA-18S "135", PA-18AS "135", PA-18 “150”, PA- 18A “150”, PA-18S “150”, PA-18AS “150”, PA-19 (Army L-18C), and PA-19S August 19, 2011 May 23, 2012 (Signature) Steven L. Lardinois Manager, Systems and Flight Test Branch Chicago Aircraft Certification Office (Title) ## Every issue (1) - May 23, 2012: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c3/a8/c3a8bf47773108bee79481e091a587dd4c74f2f5e7aa24909b58796b60cacc76) --- 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.