# STC SA3126WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: SOUTHWESTERN AERO EXCHANGE INC., United States - Description: Installation of pilot cockpit door. - Applied: April 22, 1965 - Status date: February 27, 2006 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS A-765](https://openairdocs.org/tcds/A-765) - Certificate PDF: https://openairdocs.org/files/sha256/33/c9/33c9406453530b2ef67a244c5242d8b99c61d9103c5752c99cb3d47cfb91f8bc - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E52A5023890DD97486257126005302C3.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA3126WE ## ADs that name it (0) None. ## Approved models (4) - Raytheon Aircraft Company E18S ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company E18S-9700 ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company G18S ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company H18 ([TCDS A-765](https://openairdocs.org/tcds/A-765)) ## 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. This Certificate issued to Southwestern Aero Exchange, Inc. 18502 East 108th Street, North Owasso, OK 74055 Part 03 of the Civil Air Regulations. effective November 13, 1945 and Part 3 effective November 1, 1949 as amended by 3-14 (paragraph 3.242) (normal category) Original Product Type Certificate Number : A-765 Beech E18S, E18S-9700, G18S, H18 Description of Type Design Change: Installation of Pilot Cockpit Door in accordance with FAA sealed Volpar Incorporated Drawing No. 2694 Change C or later FAA approved revision. Limitations and Conditions: Models E18S and E18S-9700 must be modified to incorporate Beech Kit 716-1. The approval of this change in type design applies basically to Beech Models E18S, E18S-9700, G18S, H18 aircraft 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. 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. This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of application: April 22, 1965 Date of issuance: May 17, 1965 Date reissued: Jan 23, 1998; Feb. 27, 2006 ( Signature) Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title) ## Every issue (1) - February 27, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/33/c9/33c9406453530b2ef67a244c5242d8b99c61d9103c5752c99cb3d47cfb91f8bc) --- 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.