# STC SA942SO - Type: Supplemental type certificate - Status: Current, Reissued - Holder: D'Shannon Products Ltd., United States - Description: Installation of Adjustable Directional Trim Device on lower aft fuselage (ventral Location) in accordance with Beryl D Shannon Aviation Specialties, Inc., drawing B15001, dated May 30, 1977, or later FAA approved revision. - Applied: May 31, 1977 - Status date: July 20, 2011 - Product: Aircraft, Single-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15), [TCDS A-777](https://openairdocs.org/tcds/A-777) - Certificate PDF: https://openairdocs.org/files/sha256/1b/01/1b011186fb3c5d69d856d501282210dffb1b7233db2d3667207c4e6e729ee9c0 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/56E7874E1D66CA37862578F600732EDA.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA942SO ## ADs that name it (0) None. ## Approved models (33) - Hawker Beechcraft Corporation 35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation 35-33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation 35-A33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation 35-B33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation 35-C33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation 35-C33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation 35R ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation 36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation A35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation A36 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation B35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation C35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation D35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation E33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation E33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation E33C ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation E35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation F33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation F33A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation F33C ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation F35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation G33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation G35 ([TCDS A-777](https://openairdocs.org/tcds/A-777)) - Hawker Beechcraft Corporation H35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation J35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation K35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation M35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation N35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation P35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation S35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation V35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker Beechcraft Corporation V35A ([TCDS 3A15](https://openairdocs.org/tcds/3A15)) - Hawker 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. Number SA942SO This certificate issued to Part 3 of the Civil Air Regulations. Installation of Adjustable Directional Trim Device on lower aft fuselage (ventral Location) in accordance with Beryl D’Shannon Aviation Specialties, Inc., drawing B15001, dated May 30, 1977, or later FAA approved revision. Limitations and Conditions: The approval of this change in type design applies basically to Beech models shown only. This approval should not be extended to other airc raft of this model on which other previ ously approved modifications are incorporat ed unless it us determined by the installer that the interrelationshi p between this change and any of those other previously appro ved modification will introduce no adverse affect on the airworthiness of that aircraft. If the holder of this STC agrees to permi t another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. D’Shannon Products, Ltd. 1309 County Road 134 Buffalo, MN 55313 A-777 and 3A15 Make : Beech Model : A-777 A35 through G35, 35, and 35R 3A15 35-33, 35-A33, 35-B33, 35-C33, 35-C33A, E33. E33A, E33C, F33, F33A, F33C, G33, H35 through S35, V35, V35A, V35B, 36 and A36 Date reissued : March 29, 2011, July 20, 2011 ( Signature) Melvin D. Taylor, Manager Atlanta Aircraft Certification Office ( Title) Date of application : May 31, 1977 Date of issuance : July 1, 1977 Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and Street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and Street) (City, State, and ZIP code) Signature of grantor (In ink): ## Every issue (2) - July 20, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1b/01/1b011186fb3c5d69d856d501282210dffb1b7233db2d3667207c4e6e729ee9c0) - March 29, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/24/af/24afe4b2d16f32011732d195f8d65179ea084f8f940ec3339165bc27aeb03b85) --- 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.