# STC SA1813NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: G & D Aero Products Inc., United States - Description: Installation of Lompoc Aero Specialties inner Plexiglass pane in swing out window frames presently employing a single window in accordance with Lompoc Aero Specialties FAA sealed Eligibility List dated January 4, 1983, together with their FAA sealed Installation Instructions dated September 20, 1982, or later FAA approved revisions. Manufacture of the windows is controlled by Lompoc Aero Specialties Drawing LAS 1012 dated August 6, 1982, LAS 1013 dated October 5, 1982, and LAS 1014 dated October 6, 1982, or later FAA approved sealed revisions. - Applied: September 29, 1982 - Status date: January 23, 2004 - Product: Aircraft, Single-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12) - Certificate PDF: https://openairdocs.org/files/sha256/e0/9f/e09f1d55dffd39c26e6318beb2b609d87b4565be17443353ebb3cdca95b31a60 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F444B79990FA0A5A86256E620058325B.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1813NM ## ADs that name it (0) None. ## Approved models (14) - The Cessna Aircraft Company 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172F (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172G ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172H (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172I ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172K ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172N ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172P ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) ## 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 G & D Aero Products Inc. 23220 Miners Road, Gavlan Hills Perris, California 92570 Part 3* of the Civil Air Regulations. *See Type Certificate Data Sheet No. 3A12 for a complete statement of the certification basis. 3A12 CESSNA 172A, 172B, 172C, 172D, 172E. 172F, (USAF T-41A), 172G, 172H, (USAF T-41A), 172I, 172K, 172L, 172M, 172N, 172P Description of Type Design Change: Installation of Lompoc Aero Specialties inner Plexiglass pane in swing out window frames presently employing a single window – in accordance with Lompoc Aero Specialties FAA sealed Eligibility List dated January 4, 1983, together with their FAA sealed Installation Instructions dated September 20, 1982, or later FAA approved revisions. Manufacture of the windows is controlled by Lompoc Aero Specialties Drawing LAS 1012 dated August 6, 1982, LAS 1013 dated October 5, 1982, and LAS 1014 dated October 6, 1982, or later FAA approved sealed revisions. Limitations and Conditions: The approval of this change in type design applies to the basic aircraft of the specified models that are otherwise unmodified. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications will not introduce any 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. Date of application : September 29, 1982 Date of issuance : November 24, 1982 Date reissued : Jun. 1, 1989; Feb. 22, 1994; Jan. 23, 2004 Date amended : February 1, 1983 ( Signature) Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office (Title) ## Every issue (1) - January 23, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e0/9f/e09f1d55dffd39c26e6318beb2b609d87b4565be17443353ebb3cdca95b31a60) --- 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.