STC SA04601CH

SEAL AVATO Department of Transportation United States of America Federal Aviation Administration Supplemental Type Certificate Number: SA04601CH This certificate issued to: McCauley Propeller Systems One Cessna Boulevard Wichita, KS 67277 Part 23 of Title 14 Code of Federal Regulations Type Certificate Number: A24CE Original Product Model: 300, 300LW, B300, B300C Make: Textron Aviation, Inc.

Installation of a McCauley Propeller Systems 4HFR34C780/105STA-0 to -2 model propeller in accordance with LRL Aviation, LLC Installation Instructions, Document No. LRL-2105-INST-01, Rev. -, dated January 18, 2023 or later FAA approved revision or Document No. LRL-2105-INST-02, Rev. -, dated January 18, 2023 or later FAA approved revision.

(See continuation sheet 3 of 3 for complete Description of Type Design Change.)

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

(See continuation sheet 3 of 3 for complete Limitations and Conditions.)

Date of Application: June 29, 2021 Date Reissued: July 28, 2023 Date of Issuance: June 29, 2023 Date Amended:

By Direction of the Administrator Signature for Paul (Vu) Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Title: Aircraft Certification Service This certificate may be trans/erred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47. The FAA will reissue the certificate in the name of the transferee and forward it to him.

From (Name and address of grantor);

LRL-2105-AFMS, Rev. -, approved May 30, 2023, or later FAA approved revision is required with this installation.

The aircraft must be maintained in accordance with the FAA-accepted Instructions for Continued Airworthiness (ICA), Document No. LRL-2105-ICA, Rev -, dated March 28, 2023 or later FAA-accepted revision.

Limitations and Conditions: (continued):

2) A copy of this STC must be included in the permanent record of the modified aircraft.

3) If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Certification Basis:

Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the modified Textron 300, 300LW, B300 and B300C aircraft is as follows:

A. The type certification basis for the Textron 300, 300LW, B300 and B300C aircraft is shown on TCDS A24CE for parts not changed or not affected by this change.

B. The type certification basis for the parts changed or affected by this change since the reference date of application, June 29, 2021, is shown on TCDS A24CE under "Data Pertinent to Model B300, B300C, B300C (MC-12W), B300 (UC-12W)", plus the following: 14 CFR Part 36 Appendix G - - Amendment 31.

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