# STC SA4177WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: TALCO Aviation Corp., United States - Description: Installation of electric inflatable door seal. - Applied: October 16, 1979 - Status date: June 28, 2021 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17) - Certificate PDF: https://openairdocs.org/files/sha256/ee/96/ee9629842d93638635f09a35864b6ee7c5c4fed5d5df5273f137082596312460 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A5C4E97B49D9D70A862588400068C345.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA4177WE ## ADs that name it (2) - [AD 98-21-21 R1](https://openairdocs.org/ad/98-21-21-R1): Electric Inflatable Door Seals · Cessna 17-30, 17-30A, 17-31 and 267 more. Effective May 1, 2000. Named in the applicability - [AD 98-21-21](https://openairdocs.org/ad/98-21-21) (historical): Inflatable Door Seals · Bob Fields Aerocessories Electric Inflatable Door Seal. Effective Oct 30, 1998. Named in the applicability ## Approved models (4) - Textron Aviation Inc. 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17)) - Textron Aviation Inc. 175A ([TCDS 3A17](https://openairdocs.org/tcds/3A17)) - Textron Aviation Inc. 175B ([TCDS 3A17](https://openairdocs.org/tcds/3A17)) - Textron Aviation Inc. 175C ([TCDS 3A17](https://openairdocs.org/tcds/3A17)) ## 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. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21. 47. FAA Form 8110-2 (4/20) SUPERSEDES PREVIOUS EDITION Page 1 of 2 Number: SA4177WE This certificate issued to: TALCO Aviation Corp. 3015 E. New York St. Ste. A2-270 Aurora, IL 60504 Part 21 of the Federal Aviation Regulations. Original Product Type Certificate Number: 3A17 Make: Textron Aviation Inc. Model: 175, 175A, 175B, 175C Description of Type Design Change: Installation of electric inflatable door seal in accordance with FAA sealed Aerocessories Drawing No. 3960 “NC” dated June 1, 1980, or later FAA approved revision. Limitations and Conditions: The approval of this change in type design applies to the basic aircraft of the specified model only that is otherwise unmodified. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. Date of Application: October 16, 1979 Date Reissued: June 28, 2021 Date of Issuance: June 30, 1980 Date Amended: Title: Aviation Safety Acting Manager, Technical & Administrative Support Section, Los Angeles ACO Branch United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21. 47. FAA Form 8110-2 (4/20) SUPERSEDES PREVIOUS EDITION Page 2 of 2 Number: SA4177WE ## Every issue (1) - June 28, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ee/96/ee9629842d93638635f09a35864b6ee7c5c4fed5d5df5273f137082596312460) --- 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.