# STC SA1391WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Staggerwing Museum Foundation Inc., United States - Description: Engine cowl and exhaust modifications. - Applied: March 7, 1967 - Status date: September 3, 2004 - 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/sha256/90/b2/90b2d29d2beeef277c6829f5913932b7f485b63b0847aeff5b590100676df71c - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A6C3C9F4B41FECDE862570BA00537E90.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1391WE ## ADs that name it (0) None. ## Approved models (2) - 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)) ## 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 Staggerwing Museum Foundation, Inc. 560 Old Shelbyville Highway Tullahoma, TN 37388 Part 3 of the Civil Air Regulations. 765 BEECH E18S, E18S-9700 Description of Type Design Change: Engine cowl and exhaust modifications in accordance with FAA sealed Hamilton Summary Drawing No. 72900. Date of application : March 7, 1967 Date of issuance : March 31, 1967 Date reissued: April 28, 1977; September 3, 2004 ( Signature) Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title) s ## Every issue (1) - September 3, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/90/b2/90b2d29d2beeef277c6829f5913932b7f485b63b0847aeff5b590100676df71c) --- 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.