# STC SA00192LA - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Moth Aircraft Company, United States - Description: Replacement of BTH AG4 impluse and nonimpulse magnetos with Slick Magnetos on Gipsy I, Gipsy II, and Gipsy III model engines and Gipsy major series 1 through 10MK2 model engines. - Applied: March 6, 1995 - Status date: September 21, 2015 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS A26NM](https://openairdocs.org/tcds/A26NM), [TCDS A8EU](https://openairdocs.org/tcds/A8EU), [TCDS A44EU](https://openairdocs.org/tcds/A44EU), [TCDS A5PC](https://openairdocs.org/tcds/A5PC) - Certificate PDF: https://openairdocs.org/files/sha256/80/9f/809f78fa5e8298fcd6620624b32cca5eadaa4f4f915efcfe0fc26b6d6dcef4c7 - Approved model list and other attachments: [AML_SA00192LA.pdf](https://openairdocs.org/files/sha256/ec/19/ec1930e042d8023a8d51c63bc278609892e229c255d1a4dc947daf3c840654fe) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/68C260EDB8A4F99786257ECF004FF118.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA00192LA ## ADs that name it (0) None. ## Approved models (6) - Lamon William E. DHC-1B-2-S3 ([TCDS A26NM](https://openairdocs.org/tcds/A26NM)) - Robertson Cliff c/o Gadbois Business Management D.H.82A Tiger Moth ([TCDS A8EU](https://openairdocs.org/tcds/A8EU)) - Rust Robert E. DHC-1 Chipmunk Mk 21 ([TCDS A44EU](https://openairdocs.org/tcds/A44EU)) - Rust Robert E. DHC-1 Chipmunk Mk 22 ([TCDS A44EU](https://openairdocs.org/tcds/A44EU)) - Rust Robert E. DHC-1 Chipmunk Mk 22A ([TCDS A44EU](https://openairdocs.org/tcds/A44EU)) - Williams Harry E. DH 82A ([TCDS A5PC](https://openairdocs.org/tcds/A5PC)) ## 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. Number SA00192LA This Certificate issued to Part 21.29 of the 14 CFR Regulations. **See attached FAA Approved Model List (AML) No. *SA00192LA for a list of approved models and *Applicable airworthiness regulations. Description of Type Design Change: This approval authorizes replacement of BTH AG4 impluse and nonimpulse magnetos with Slick Magnetos on Gipsy I, Gipsy II, and Gipsy III model engines and Gipsy major series 1 through 10MK2 model engines in accordance with instructions of this STC’s Limitations and Conditions and AML No. SA00192LA, or later FAA approved revisions. NOTE: this STC is applicable to airplanes listed on the AML instead of engines since the engines and propellers were certified with the airplanes. Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including change in type design, will introduce no adverse effect upon the airworthiness of that aircraft. (See Continuation Sheet) MOTH AIRCRAFT COMPANY 21807 South Embassy Avenue Long Beach, CA 90810-1738 Original Product Type Certificate Number : Date reissued : June 16, 2015, September 21, 2015 (Signature) Manager, Propulsion Branch Los Angeles Aircraft Certification Office (Title) Date of application : March 6, 1995 Date of issuance : May 1, 1996 United States Of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Continuation Sheet Number SA00192LA A copy of this certificate and FAA Approved AML No. SA00192LA dated May, 1996, or later FAA approved revision must be maintained as part of the permanent records for the modified aircraft. 1. Compatibility of this design change with previously approved modifications must be determined by the installer. 2. The weight and balance for the aircraft must be determined by the installer by weighing the removed magneto assemblies and the installed Moth Aircraft magneto assemblies. (The Moth assemblies are approximately 9 pounds lighter than the removed BTH AG4 assemblies). 3. Install Moth Aircraft Company P art Number 231 Placard on the instrument panel near the magneto switch which states: For inverted engine – “Start on Right Magneto Only”, For upright engines – “Start on Left Magneto Only”. - End - ### AML_SA00192LA.pdf **FAA APPROVED MODEL LIST (AML) NO. SA00192LA** **MOTH AIRCRAFT COMPANY** **FOR CONVERSION OF GIPSY 4 CYLINDER ENGINES** **TO A SLICK MAGNETO IGNITION SYSTEM** Issue Date: MAY 1, 1996 Page 1 of 2 Original Type Certification Basis FAA Approved Drawings and Installation Instructions AFM AML Item Aircraft Make Aircraft Model Certificate Number for Alteration Number Revision No. & Date Supplement Number/Date Amendment Date 1 DeHavilland DH82A A5PC issued to: Harry E. Williams § 21.29 FAA letter dated 2/6/68 Magneto Assy 232 Harness Assy 260 Installation Instructions 261 original 2/20/95 original 12/11/95 original 10/31/95 N/A ------- 2 DeHavilland DH82A A8EU issued to: Cliff Robertson § 21.29 FAA Letter dated 8/19/95 " " N/A ------- **FAA APPROVED MODEL LIST (AML) NO. SA00192LA** **MOTH AIRCRAFT COMPANY** **FOR CONVERSION OF GIPSY 4 CYLINDER ENGINES** **TO A SLICK MAGNETO IGNITION SYSTEM** Issue Date: MAY 1, 1996 Page 2 of 2 Original Type Certification Basis FAA Approved Drawings and Installation Instructions AFM AML Item Aircraft Make Aircraft Model Certificate Number for Alteration Number Revision No. & Date Supplement Number/Date Amendment Date 3 DeHavilland DHC-1B-2-S3 A26NM issued to: William E. Lamon § 21.29 FAA letter dated 1/4/89 " " N/A ------- 4 DeHavilland DH.C1 Chipmunk 21, 22, and 22A A33EU issued to: Robert E. Rust § 21.29 FAA letter dated 1/19/77 " " N/A ------- FAA Approved: ________________________________ Supervisor, Technical and Administrative Support Staff Los Angeles Aircraft Certification Office Date: June 16, 2015 ## Every issue (3) - September 21, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/80/9f/809f78fa5e8298fcd6620624b32cca5eadaa4f4f915efcfe0fc26b6d6dcef4c7), [AML_SA00192LA.pdf](https://openairdocs.org/files/sha256/ec/19/ec1930e042d8023a8d51c63bc278609892e229c255d1a4dc947daf3c840654fe) - June 16, 2015: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/1d/31/1d3185cde68904ee6bdfa7d653ee926c929c2094500f3c26ca75b7f0e8b5583e), [SA00192LA_AML.pdf](https://openairdocs.org/files/sha256/b2/6a/b26a834e7bda12e20711e3b6297eb1143d6d9036eb3d642f8517dc6277f4f897) - May 1, 1996: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/cf/d5/cfd549cd00b7ef59c54ad983c8c180c1360cf29e8d7301b34afa8a0118a20b61) --- 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.