# STC SA2737WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Staggerwing Museum Foundation Inc., United States - Description: Installation of spar strap extension to outboard wing panel. - Applied: July 17, 1973 - 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/a6/de/a6de6a02d41820fc52dd7cbc47e7942f7a69b51382b56f2c7c33901e6e3da431 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A9964F328CB8CF0D862570CB007179C9.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA2737WE ## ADs that name it (1) - [AD 75-27-09 R2](https://openairdocs.org/ad/75-27-09-R2): Wing Structure · Textron 18A, 18D, 18S (Army C-45C) and 27 more. Effective Aug 21, 1980. Cited in the text ## Approved models (12) - Raytheon Aircraft Company C-45G ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company C-45H ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company D18S ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - 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)) - Raytheon Aircraft Company JRB-6 ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company TC-45G ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company TC-45H ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company TC-45J ([TCDS A-765](https://openairdocs.org/tcds/A-765)) - Raytheon Aircraft Company UC-45J (SNB-5) ([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 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). A-765 BEECH D18S, E18S, E18S-9700, G18S, H18, C-45G, TC-45G, C-45H, TC-45H, TC-45J (SNB-5), JRB-6 Description of Type Design Change: Installation of Spar Strap Extension to outboard wing panel in accordance with FAA sealed Hamilton Aircraft Co., Inc. Drawing List 80-100. To be eligible, these aircraft must incorporate the provisions of STC SA1533WE – center section wing spar reinforcement. See Page 2 Date of application : July 17, 1973 Date of issuance : August 10, 1973 Date reissued: April 28, 1977; September 3, 2004 Date amended: November 12, 1973 ( Signature) Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title) Number SA2737WE April 28, 1977, September 3, 2004 The approval of this change in type design applies basically to Beech models D18S, E18S, E18S- 9700, G18S, H18, C-45G, TC-45G, C-45H, TC-45H, TC-45J (SNB-5), and JRB-6 aircraft only. This approval should not be extended to other aircraft of these models 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. This reinforcement provides relief from the inspection requirements imposed by AD 73-18-4 (outboard wing panel). 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 - END - ## Every issue (1) - September 3, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a6/de/a6de6a02d41820fc52dd7cbc47e7942f7a69b51382b56f2c7c33901e6e3da431) --- 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.