# STC SA02241AK - Type: Supplemental type certificate - Status: Current, Amended - Holder: Trimmer Marvin E/Trimmer Aviation LLC, United States - Description: Installation of a Maule Fuel Selector Valve and Associated Fuel System Upgrade in accordance with the Descriptive Data listed in Trimmer Aviation, LLC, Master Data List, MDL-001, dated March 22, 2005, or later FAA approved revision. - Applied: April 20, 2004 - Status date: July 6, 2018 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS 1A1](https://openairdocs.org/tcds/1A1), [TCDS 1A4](https://openairdocs.org/tcds/1A4), [TCDS 1A6](https://openairdocs.org/tcds/1A6) - Certificate PDF: https://openairdocs.org/files/sha256/c7/d9/c7d94817e8b83de73f84f69a4945928392e132b8d6862ef69682e0733b0b677c - Approved model list and other attachments: [SA02241AK_AML.pdf](https://openairdocs.org/files/sha256/a1/6d/a16d186d8368c8ee204dc03204fb1c5b40982dbb4b750a7cc206ee5afee710c2) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3C05133014461F0862582CC0050A6D4.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA02241AK ## ADs that name it (0) None. ## Approved models (16) - The New Piper Aircraft Inc. PA-16 ([TCDS 1A1](https://openairdocs.org/tcds/1A1)) - The New Piper Aircraft Inc. PA-16S ([TCDS 1A1](https://openairdocs.org/tcds/1A1)) - The New Piper Aircraft Inc. PA-20 ([TCDS 1A4](https://openairdocs.org/tcds/1A4)) - The New Piper Aircraft Inc. PA-20-115 ([TCDS 1A4](https://openairdocs.org/tcds/1A4)) - The New Piper Aircraft Inc. PA-20-135 ([TCDS 1A4](https://openairdocs.org/tcds/1A4)) - The New Piper Aircraft Inc. PA-20S ([TCDS 1A4](https://openairdocs.org/tcds/1A4)) - The New Piper Aircraft Inc. PA-20S-115 ([TCDS 1A4](https://openairdocs.org/tcds/1A4)) - The New Piper Aircraft Inc. PA-20S-135 ([TCDS 1A4](https://openairdocs.org/tcds/1A4)) - The New Piper Aircraft Inc. PA-22 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22-108 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22-135 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22-150 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22-160 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22S-135 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22S-150 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) - The New Piper Aircraft Inc. PA-22S-160 ([TCDS 1A6](https://openairdocs.org/tcds/1A6)) ## 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. Installation of a Maule Fuel Selector Valve and Associated Fuel System Upgrade in accordance with the Descriptive Data listed in Trimmer Aviation, LLC, Master Data List, MDL-001, dated March 22, 2005, or later FAA approved revision. 1) Except for models PA-22-160 and PA-22S-160, the use of constant speed propellers prohibited. 2) Propeller pitch range for PA-22 airplanes equipped with O-360 Series engines shall be 54” – 68”. 3) Compatibility of this design change with previously approved modifications must be determined by the installer. 4) 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. 5) For Instruction for Continued Airworthiness, refer to Trimmer Aviation, LLC, Document Number ICA-001, Rev A, dated May 8, 2018, or later FAA accepted revision. 6) This modification has been found to be compatible with STC SA181RM. July 6, 2018 (Signature) August A. Asay Manager, Anchorage ACO Branch (Title) April 20, 2004 May 6, 2005 *Refer to FAA Approved Model List (AML), Number SA02241AK, dated July 6, 2018, or later FAA approved revision, for airplane makes and models, corresponding Type Certificate numbers, and applicable airworthiness regulations. Marvin E. Trimmer Trimmer Aviation, LLC P. O. Box 361 Willow, AK 99688 FAA Form 8110-2-1(10-69) Page 3 of 3 ### SA02241AK_AML.pdf - Trimmer Aviation, LLC Approved Model List (AML) P. O. Box 361 Number: SA02241AK Willow, Alaska 99688 Date of Issuance: May 6, 2005 Amendment 1: July 6, 2018 Approved Model List for the Maule fuel selector valve installation **TCDS HOLDER** **MODEL TCDS NUMBER** **CERTIFICATION BASIS** **INSTALLATION** **INSTRUCTIONS** ICA FAA APPROVED AFMS Piper Aircraft Inc PA-16 PA-16S 1A1 CAR 3 II-001, rev A, dated May 8, 2018 ICA-001, rev A, dated May 8, 2018 AFMS 16-001 Piper Aircraft Inc PA-20 PA-20S PA-20 “115” PA-20S “115” PA-20 “135” PA-20S “135” 1A4 CAR 3 II-001, rev A, dated May 8, 2018 ICA-001, rev A, dated May 8, 2018 AFMS 20-001 Piper Aircraft Inc PA-22 PA-22-108 PA-22-135 PA-22S-135 PA-22-150 PA-22S-150 PA-22-160 PA-22S-160 1A6 CAR 3 II-001, rev A, dated May 8, 2018 ICA-001, rev A, dated May 8, 2018 AFMS 22-001 ## Every issue (2) - July 6, 2018: Amended, Current. [certificate](https://openairdocs.org/files/sha256/c7/d9/c7d94817e8b83de73f84f69a4945928392e132b8d6862ef69682e0733b0b677c), [SA02241AK_AML.pdf](https://openairdocs.org/files/sha256/a1/6d/a16d186d8368c8ee204dc03204fb1c5b40982dbb4b750a7cc206ee5afee710c2) - May 6, 2005: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/5b/38/5b3885688148408955c76f98040a93cb66e49600517a3547201a52f23d1ec207), [SA02241AKAML.pdf](https://openairdocs.org/files/sha256/8b/a7/8ba77256e336600afc6b2e33cd870a3ed2d654aba7dc9197dd64b28522a102e4) --- 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.