STC SR04527AT

FAA 8110-2 (10/24) Page 1 of 4 United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate

This certificate issued to: Ace Aeronautics, LLC.

105 Buck Island Road Guntersville, AL 35976 SR04527AT

Part 21 of Federal Aviation Regulations .

*See attached AML

*See attached FAA Approved Model List Description of Type Design Change: Model: No. SR04572AT for make/models approved Installation of Robertson Fuel System 200 Gallon Internal Auxilliary Fuel Tank System (IAFTS) in accordance with the configuration and installation details defined in US Armed Forces approved Airworthiness Release (AWR) 1532 Appendix B, 2 - 5, dated Sept 17, 2008. Flight Manual Supplement XPS-TM-HM-026-200G-10-B Rev IR, dated July 21, 2021, or later FAA-approved revision, is required. Instructions for Continued Airworthiness XPS-IAFTS-ICA Rev IR, dated August 28, 2021, or later FAA-approved revision, are applicable.

1. Approval of this change in type design applies to model aircraft on AML SR04527AT only. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

(See Continuation Sheet 3 of 4 pages)

Date of Application: 09/18/2018 Date Reissued: 02/28/2022 04/13/2026 Date of Issuance: 10/22/2021 Date Amended:

Michael Linegang Manager, East Certification Branch

Compliance & Airworthiness Division Aircraft Certification Service

FAA 8110-2 (10/24) Page 2 of 4 United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate

Number: SR04527AT Effective Date: 04/13/2026

Page 3_ of 4_ FAA 8110-2 (10/24) Add Page

United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate

(Continuation Sheet) Number: SR04527AT Effective Date:

Limitations and Conditions (continued) 04/13/2026

2. This STC is applicable only to the Models listed that were manufactured prior to April 5, 2020 due to the the 2018 Congressional Mandate for Crash Resistant Fuel Systems. Removal of this limitation may require compliance to 14 CFR §29.952, §29.963, and §29.975.

3. The installer must determine whether this design change is compatible with previously approved modifications.

4. 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.

5. Only articles for the Accumulator Hand Pump and Handle relocation portion of the installation can be produced through a Part 145 Repair Facility in accordance with 14 CFR §21.9(a). All other articles can be acquired from the military; new-production articles from the OEM supplier to the military; or through sellers of articles for military surplus aircraft. The original OEM supplier to the military may produce articles for installation under their military production system with a §21.9(c) exemption. If a new PMA is sought for articles produced for this installation, additional design approvals will be required.

(See Continuation Sheet 4 of 4 pages)

Page 4_ of 4_ FAA 8110-2 (10/24) Add Page

United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate

(Continuation Sheet) Number: SR04527AT Effective Date: 04/13/2026 Certification Basis

Title 14 CFR Part 21 § 21.25(a)(2) effective February 1, 1965, including Amendments 21-1 through 21-42

1. This STC is approved in accordance with Order 8110.56B, paragraph 4-15e, "Modifications Previously Qualified by the U.S. Armed Forces". The required military installation instructions are referenced in the Description of the Type Design Change.

2. Any subsequent modifications to the military approved installation instructions for this STC are to have the certification basis for that modification established under 14 CFR part 21 § 21.101 published June 7, 2000 which became effective June 10, 2003.

Otherwise non-significant modifications are to meet the requirements of 14 CFR 29 airworthiness standards, transport category, Amendment 1 through Amendment 17, effective December 1, 1978, and 14 CFR part 29 § 29.1529, Instructions for Continued Airworthiness, Amendment 20, effective September 11, 1980.

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