# STC SA00794CH - Type: Supplemental type certificate - Status: Current, Amended - Holder: Commander Aero Inc, United States - Description: Replace Twin Commander fuel cap assembly with Shaw Aero Devices Fuel Cap (P/N 416-50) and adapter (P/N 416-938). - Applied: June 8, 1997 - Status date: August 10, 2009 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 21 - Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4), [TCDS 6A1](https://openairdocs.org/tcds/6A1) - Certificate PDF: https://openairdocs.org/files/sha256/be/c6/bec69ae231e59ee340acad1165f694a3dbb2abaa9ba173f5351a770bc9ba4693 - Approved model list and other attachments: [SA00794CH.AML.pdf](https://openairdocs.org/files/sha256/48/2f/482f4391f061b2a74113ef2af1829bf4a7dfc0f81e97e6fa37d006f09ed263e8) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3C9204A3334836D48625762D00751DF4.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA00794CH ## ADs that name it (0) None. ## Approved models (23) - Twin Commander Aircraft Corporation 500 ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 500-A ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 500-B ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 500-S ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 500-U ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 520 ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 560 ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 560-A ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 560-E ([TCDS 6A1](https://openairdocs.org/tcds/6A1)) - Twin Commander Aircraft Corporation 560-F ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 680 ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 680-F ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 680-FL ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 680-FL(P) ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 681 ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690 ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690A ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690B ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690C ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690D ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 695 ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 695A ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 695B ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) ## 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 * of the * Regulations. Original Product--Type Certificate Number: *See attached FAA Approved Model List (AML) Make: *No. SA00794CH for list of a pproved airplane models and Model: *applicable airworthiness regulations Description of Type Design Change: Replace Twin Commander fuel cap assembly with Shaw Aero Devices cap assembly (P/N 416-50), adapter assembly (P/N 416-938) and Cap/Restrictor Assembly (P/N 516-006), in accordance with Commander-Aero, Inc. Installation Instructions listed on AML No. SA00794CH or later FAA approved revision. 1. Compatibility of this design change with previous modifications must be determined by the installer. 2. A copy of this certificate must be maintained as part of the permanent records for the modified aircraft. 3. 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. Commander-Aero, Inc. 10570 Springboro Pike Miamisburg, OH 45342 Date of application : June 8, 1997 Date of issuance : June 9, 1999 Date reissued : September 13, 1999 Date amended : August 10, 2009 Original Signed By: Thaddeus D. Krolicki, Jr. ( Signature) Thaddeus D. Krolicki, Jr. Manager, Propulsion Branch Chicago Aircraft Certification Office ( Title) ### SA00794CH.AML.pdf **FAA APPROVED MODEL LIST (AML) NO. SA00794CH COMMANDER-AERO, INC.** FOR **INSTALLATION OF SHAW AERO DEVICES FUEL CAP** Date of Issuance: August 10th, 2009 1 of 1 **ORIGINAL TYPE** **CERTIFICATION** **INSTALLATION** **INSTRUCTIONS** AFM AML **ITEM** **MAKE** **MODEL** **CERTIFICATE NUMBER** **BASIS FOR** **ALTERATION** **NUMBER** **REVISION NO. / DATE** **SUPPLEMENT NO. / DATE** AMENDMENT DATE 1 Twin Commander 680T, 680V, 680W, 681, 690, 690A, 690B, 690C, 690D, 695, 695A, 695B. 2A4 CAR 3 and amendments listed in TCDS 2A4 776- 226- 028 Rev. None, Dated 8/7/2009 or later FAA approved revision. N/A 8/10/2009 2 Twin Commander 500, 500A, 500B, 500U, 500S, 520, 560, 560A, 560E. 6A1 CAR 3 and amendments listed in TCDS 6A1 776- 226- 028 Rev. None, Dated 8/7/2009 or later FAA approved revision. N/A 8/10/2009 3 Twin Commander 560F, 680, 680F, 680FL, 680FL(P). 2A4 CAR 3 and amendments listed in TCDS 2A4 776- 226- 028 Rev. None, Dated 8/7/2009 or later FAA approved revision. N/A 8/10/2009 Original Signed By: Thaddeus D, Krolicki, Jr. FAA Approved:____________________ Thaddeus D. Krolicki, Jr. Manager, Propulsion Branch Chicago Aircraft Certification Office ## Every issue (1) - August 10, 2009: Amended, Current. [certificate](https://openairdocs.org/files/sha256/be/c6/bec69ae231e59ee340acad1165f694a3dbb2abaa9ba173f5351a770bc9ba4693), [SA00794CH.AML.pdf](https://openairdocs.org/files/sha256/48/2f/482f4391f061b2a74113ef2af1829bf4a7dfc0f81e97e6fa37d006f09ed263e8) --- 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.