# STC SA5233SW-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: S-TEC Corporation, United States - Description: Installation of S-TEC System 60 pitch stabilization system Model ST-058. - Applied: June 8, 1983 - Status date: February 17, 1984 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 3A24](https://openairdocs.org/tcds/3A24) - Certificate PDF: https://openairdocs.org/files/sha256/c0/62/c06238cc5bffac5273c536e617c85de8e8eacd108b5869227934e5659e54926f - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/376AC3546530BD2386257ECB0059998D.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA5233SW-D ## ADs that name it (0) None. ## Approved models (8) - Cessna Aircraft Company 185 ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company 185A ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company 185B ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company 185C ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company 185D ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company 185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company A185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - Cessna Aircraft Company A185F ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) ## 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. «ratri Stara of aumca Bepartmtnt of Transportation —federal atriation administration Supplemental t^pe Certificate SA5233SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 f^2foj(cilti^'^^ ClVll Air 'Sl£au&a ' ~&suvnja4> . 3A24 CESSNA 185, 185A, 185B, 185C, 185D, 185E, A185E, AND A185F Installation of S-TEC System 60 Pitch Stabilization System, Model ST-058, according to Bulletin No. 161, Revision 2, dated 11-23-83 and Master Drawing List No. 9285, Revision B, dated 11-23-83 and/or later FAA Approved revisions of the above data, (14 Volt System). 1. Eligible on the above Models when modified per STC SA2529WE (Internal Tip Tanks), and/or STC SA1441WE (Robertson STOL) (Landplane and Floatplane) (See Continuation Sheet, Page 2, a part of this STC). 6-8-83 11-3-83 2-17-84, Revision 1 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS5 SW (TitU) Thii ctrtificaU may b* tratuftmJ in tetordantt with FAR 21.47. FAA Fe*« tl 1O-2 (10-«<) tinted £tatrs of Slramra Bcpartment of ICransportation— JP ederal Station administration Supplemental TCgpt Certificate(Continuation £heet) SA5233SW-D, Revision 1 Limitations and Conditions (con't) 2 FAA Approved Supplemental Flight Manual, P/N 8994-1, dated 11-3-83 is required for Cessna Model A185F, S/N 18503683 and below - Landplane Only, and/or later FAA Approved revisions of the above supplement. 3 FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 8996-1, dated 11-3-83 is required for Cessna Model A185F, S/N 18503684 and on - Landplane Only, and/or later FAA Approved revisions of the above supplement. 4. FAA Approved Supplemental Flight Manual, P/N 8994-2, dated 2-17-84 is required for Cessna Model 185, 185A, 185B, 185C, 185D, 185E, A185E, and A185F, S/N 18503683 and below, and the above models when modified per STC SA2529WE (Internal Tip Tanks), and/or STC SA1441WE (Robertson STOL) (Landplane and Floatplane), and/or later FAA Approved revisions of the above supplement. 5. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual P/N 8996-2, dated 2-17-84 is required for Cessna Model A185F, S/N 18503684 and on, and the above model when modified per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441WE (Robertson STOL) (Landplane and Floatplane), and/or later FAA Approved revisions of the above supplement. 6. Compatability of this modifications with other previously approved modifications must be determined by the installer. Any nllnatwn of this certificate is punishable by a fine of not exceeding SI, OOP, or imprisonment not exceeding .3 years, or both. FAA FORM 8110-2-1 (1O-69) This certificate may be Iranrftrred in accmdance wtlh I-'AI< ~1.I7. TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number . to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ^IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ^IP code) Extent of Authority (if licensing agreement): Signature of grantor (In ink): ## Every issue (1) - February 17, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c0/62/c06238cc5bffac5273c536e617c85de8e8eacd108b5869227934e5659e54926f) --- From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.