STC SA02539AK

Number: SA02539AK David A Stoots 3686 University Ave.

Fairbanks, AK 99709

Certifies that the change in the type design for the following product with the limitations and conditions therefore as specified hereon meets the airworthiness requirements Part 3 of The Civil Air Regulations.

Make: * Model: * *Refer to FAA Approved Model List for STC SA02539AK, dated September 25, 2020, or later FAA approved revision, for airplane makes and models, corresponding Type Certificate numbers, and applicable airworthiness regulations.

Installation of a Continental Aerospace Technologies IO-370CLC1U8 and Hartzell Model HC-C(G)2YR-1N/ NG8301, -3, -7 Propeller in accordance with Master Data List, DSA 175-1 370, Rev E, dated October 14, 2019, or later FAA approved revision.

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

(Limitations and Conditions continued on page 3 of 3)

Date of application: September 12, 2017 Date of issuance: September 25, 2020 Date reissued:

Date amended: October 7, 2020; August 31, 2026

for Gregory S. DiLibero Title: Manager, West Certification Branch

14 CFR 21.120) FAA Form 8110-2 (10/24) SUPERSEDES PREVIOUS EDITION PAGE 1 OF 3

United States of America Department of Transportation Supplemental Type Certificate PAGE 2 OF 3 FAA Form 8110-2 (10/24) SUPERSEDES PREVIOUS EDITION

Number: SA02539AK Effective date: August 31, 2026

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: SA02539AK

14 CFR 21.120)

United States of America Department of Transportation Supplemental Type Certificate PAGE 3 OF 3 FAA Form 8110-2 (10/24) SUPERSEDES PREVIOUS EDITION

Number: SA02539AK Effective date: August 31, 2026

2. FAA Approved Airplane Flight Manual Supplement, Document No. DSA 170-172-175-1301, Revision IR, dated August 17, 2020, or later FAA approved revision is required.

3. For Instruction for Continued Airworthiness on the Model IO-370CLC1U8 Engine, refer to Continental Aerospace Technologies Manual No. M-32.

4. For Instruction for Continued Airworthiness on the Model HC-C(G)2YR-1N/NG8301,-3,-7 Propeller, refer to Hartzell Manual No. 145.

5. For Instruction for Continued Airworthiness on the David A. Stoots parts of the installation, refer to DSA- IO-370 ICA, Revision IR, dated June 6, 2018, or later accepted revision.

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14 CFR 21.120)