# STC SA3789WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: OCR Aviation, United States - Description: Installation of 36-gallon auxiliary fuel tanks in each wing. (THRU S/N 310Q-0600) - Applied: March 19, 1978 - Status date: December 1, 2017 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10) - Certificate PDF: https://openairdocs.org/files/sha256/63/2b/632b396f56fd772ce0143d6c6c74daa85607d999fd514064c635b9111b30e823 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E87FAE6D2DF9DF748625822600677237.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA3789WE ## ADs that name it (0) None. ## Approved models (11) - The Cessna Aircraft Company 310G ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310H ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310I ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310J ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310K ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310L ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310N ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310P ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company 310Q ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company T310P ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) - The Cessna Aircraft Company T310Q ([TCDS 3A10](https://openairdocs.org/tcds/3A10)) ## 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. FAA Form 8110-2 (5/14) Page 1 of This certificate issued to: Original Product – Type Cert i ficate Number: Make: By Direction of the Administrator Signature Title OCR Aviation 2721 East Spring Street Long Beach, CA 90806 Part 3* of the Civil Air Regulations. (*See Type Certificate Data Sheet 3A10 for complete certification basis). 12/1/2017 SA3789WE Installation of 36-gallon Auxiliary Fuel Tank in each wing in accordance with FAA Approved Aerocessories Master Drawing List No. 310414, Rev. D, dated May 1, 1979, or later FAA Approved revision. 1. Compatibility of this design change with previously approved modifications must be determined by the installer. 2. 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. 3. The approval of this change in type design applies to the basic aircraft of the specified model only that is otherwise unmodified, except that a total usable fuel capacity of 246 gallons was evaluated, including compatibility with STC SA2872SW. Gaetano Sciortino Manager New York ACO Branch Cessna 310G/H/I/J/K/L/N/P, 310Q (thru S/N 310Q-0600), T310P, T310Q (thru S/N 310Q-0600) 9/20/79, 6/12/81, 3/10/82, 4/16/90, 7/5/90, 8/31/17 3/8/79, 5/16/79, 6/12/81 March 19, 1978 November 14, 1978 3A10 2 FAA Form 8110-2 (5/14) Page 2 of To (Name and address of transferee) From (Name and address of grantor) Extent of Authority (if licensing agreement): 2 SA3789WE ## Every issue (3) - December 1, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/63/2b/632b396f56fd772ce0143d6c6c74daa85607d999fd514064c635b9111b30e823) - August 31, 2017: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/fa/94/fa947fc92a6bc32c9c6c5b7f4d7888c5417e239e21cf83263d6d723d3c0df186) - July 5, 1990: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/1f/a1/1fa17142cc961f3865ea7474fb195bcc7393287b5b42fdfda95e685ad69b89fb) --- 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.