# STC SA00035DE - Type: Supplemental type certificate - Status: Current, Amended - Holder: General Aviation Modifications, Inc., United States - Description: Installation of modified engine baffle/cooling louver system. - Applied: April 8, 1993 - Status date: January 8, 2016 - Product: Aircraft, Small Airplane - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15) - Certificate PDF: https://openairdocs.org/files/sha256/80/82/808200f6f25bb60eebc575cfdd61e7b1d8fc3c3b894d7f40797ae4ff5c32b8b8 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/73EF787EAB77026186257F860064035F.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA00035DE ## ADs that name it (0) None. ## Approved models (15) - Beechcraft Corporation 35-C33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation 36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation A36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation A36TC ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation B36TC ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation E33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation E33C ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation F33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation F33C ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation G33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation G36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation S35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation V35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation V35A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Beechcraft Corporation V35B ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) ## 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. Part 3 of the Civil Air R egulations. Original Product Type Certificate N umber : Installation of modified Engine Baffle/Cooling Louver system in accordance with FAA approved FliteCraft Turbo, Inc. Master Drawing List No. BON, dated May 11, 1993, or later FAA approved revision. This STC contains seven options: engine side baffles, engine upper cowl baffles, engine rear baffles, side cowl louvers, louvered cowl access panels, #2 cylinder baffle, and #6 cylinder baffle, which may be installed together or independently as outlined in paragraph 2 of this STC. General Aviation Modifications, Inc. an Oklahoma Corporation 2800 Airport Road, Hangar A Ada, OK 74820 3A15 M ake : Beechcraft (formerly Raytheon or Beech or Hawker Beechcraft) M odel : 35-C33A; 36; A36; E33A; E33C; F33A; F33C; G33; S35; V35; V35A; V35B; A36TC; B36TC; G36 Date of application : April 8, 1993 Date of issuance : May 14, 1993 Date reissued : 1/23/97, 10/16/98, 4/7/00 Date amended : 12/9/93, 8/27/03,1/8/2016 B y direction of the A dministrator (Signature) Scott A. Horn Aircraft Certification Office Southwest Region (Title) FAA Form 8110-2-1(10-69) Page 3 of 3 1. Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to aircraft of this model 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, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records of the modified aircraft. 2. This STC contains seven modules which may be installed together or independently as outlined in the following chart: Aircraft Louvered cowl access panels BON-850-1 & -2 Side louvers BON-901-1 & -2 No. 6 baffle assy 200-1-3 No. 2 baffle assy G36- 910039-41 or Beech 36- 910039-41 Side Baffles BON-808 BON-809 Upper Cowl Baffles BON-806 BON-807 Rear Baffles BON-820-1 or -3 or -5 & BON- 820-21 or -23 S35, V35, V35A, V35B Required with IO-550 optional with IO-520 Required with IO-550 optional with IO-520 Optional Optional Required (in conjunction with upper cowl baffles) Required (in conjunction with side baffles) Optional S35 V35 V35A V35B with TSIO-520-D per STC SA1035WE (V35TC) Not required since Beech cowl access panels have adjustable cowl flaps Required Optional Optional Required (in conjunction with upper cowl baffles) Required (in conjunction with side baffles) Optional 35-C33A E33A E33C Required with IO-550 optional with IO-520 Required with IO-550 optional with IO-520 Optional Optional Required (in conjunction with upper cowl baffles) Required (in conjunction with side baffles) Optional F33A F33C 36 A36 Required with IO-550 optional with IO-520 Not required if Beech louvered access panels already installed Required with IO-550 optional with IO-520 Optional Optional Required unless Beech side baffles are attached to engine May replace Beech side baffles Required unless Beech upper cowl baffles are installed May replace Beech upper cowl baffles Optional G33 with IO-520 or IO-550 engine Required with IO-550 optional with IO-520 Required with IO-550 optional with IO-520 Optional Optional Required (in conjunction with upper cowl baffles) Required (in conjunction with side baffles) Optional A36TC B36TC Not required – already supplied by factory Not required – already supplied by factory Optional Optional Optional Not required Optional G36 Not required – already supplied by factory Required Optional Not required – already supplied by factory Optional Optional Optional Notes: All items listed as optional may be installed individually as improvements to existing Beech engine baffling or as upgrades to aircraft already modified with other baffle/louver system components per STC SA00035DE. Compatibility of this design change with previously approved modifications must be determined by the installer. 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. ## Every issue (2) - January 8, 2016: Amended, Current. [certificate](https://openairdocs.org/files/sha256/80/82/808200f6f25bb60eebc575cfdd61e7b1d8fc3c3b894d7f40797ae4ff5c32b8b8) - April 7, 2000: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/7d/55/7d55d704e9b68b73a43b4d00df7059cf29fb9a9f7f8ebfe6d2b1af6a3f163fb1) --- 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.