# STC SA09897AC - Type: Supplemental type certificate - Status: Current, Issued - Holder: T-34 Spar Corporation, United States - Description: Modification of fuel return system to bypass the header tank - Applied: September 24, 2018 - Status date: February 7, 2019 - Product: Aircraft, Single-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 5A3](https://openairdocs.org/tcds/5A3) - Certificate PDF: https://openairdocs.org/files/sha256/29/54/2954cb206f6bb934ec274a8f3a8bbf841c7bf01a8c79fda873795b16434cf0c5 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/89E6D96BA898B2108625856E0044C19D.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA09897AC ## ADs that name it (0) None. ## Approved models (1) - Textron Aviation Inc. D45 (Military T-34B) ([TCDS 5A3](https://openairdocs.org/tcds/5A3)) ## 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. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (5/14) Page 1 of 3 This certificate issued to: Number: SA09897AC T-34 Spar Corp. 2800 Airport Road, Hangar A Ada, OK 74820 Part 3 of the Civil Air Regulations. Original Product – Type Certificate Number: 5A3 Make: Textron Aviation Inc. Model: D45 (T-34B) Modification of fuel return system to bypass the header tank in accordance with T-34 Spar Corp. Report 29-7560002, Rev. A, dated November 2, 2018 or later FAA approved revision. Instructions for Continued Airworthiness, T-34 Spar Corp. Report 29-7560003, Rev. IR, dated August 31, 2018 or later revision are required. Aircraft Flight Manual Supplement, T-34 Spar Corp. Report 29-7590002, dated December 11, 2018 or later FAA approved revision is required. The installer must determine whether this design change is compatible with previously approved modifications. If he 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. Date of Application: September 24, 2018 Date Reissued: Date of Issuance: February 7, 2019 Date Amended: Signature Jim Grigg Title: Manager, Fort Worth ACO Branch Compliance and Airworthiness Division Aircraft Certification Service United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (5/14) Page 2 of 3 Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: SA09897AC To (Name and address of transferee) From (Name and address of grantor) Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09897AC FAA Form 8110-2 (5/14) Page 3 of 3 Certification Basis: The type certification basis for Textron D45 (T-34B) airplanes is shown on TCDS 5A3 for parts not changed or not affected by the change. The certification basis for parts changed or affected by the change since the reference date of application, September 24, 2018, is based upon Part 03 of the Civil Air Regulations, as follows: Regulations at amendment 3-1 3.14, 3.15, 3.18, 3.291, 3.292, 3.293, 3.295, 3.296, 3.429, 3.430, 3.433, 3.435, 3.437, 3.55o Regulations at amendment 3-2 3.735, 3.777, 3.779 ## Every issue (1) - February 7, 2019: Issued, Current. [certificate](https://openairdocs.org/files/sha256/29/54/2954cb206f6bb934ec274a8f3a8bbf841c7bf01a8c79fda873795b16434cf0c5) --- 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.