STC ST04573NY

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

IMPORT ST04573NY Amtech Aeronautical Limited 678 Prospect Drive S.W.

Medicine Hat, Alberta Canada T1A 4C1 25 Title 14 Code of Federal Regulations T00012WI Textron Aviation Inc.

1. AVIATOR 300 Installation must be accomplished in accordance with Transport Canada Civil Aviation (TCCA) approved Amtech Aeronautical Limited (AAL) Master Data List MDL465501, Revision 5, dated July 13, 2020, and TCCA approved September 10, 2020, or later TCCA approved revision and Cessna Modification Order (CMO) CI009005199, Revision A, dated July 11, 2017, or later TCCA approved revision for Serial Number 680-0032 and CMO CI009005051, Revision A, dated August 25, 2016, or (Description of Type Design Change Continued on Page 3 of 3)

1. 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.

(Limitations and Conditions Continued on Page 3 of 3) October 22, 2020 January 5, 2021 Timothy J. Hadsall Acting Manager, New York ACO Branch Compliance & Airworthiness Division Aircraft Certification Service 3

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

IMPORT ST04573NY ST04573NY 3

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

IMPORT ST04573NY Date of Issuance: January 5, 2021

Description of Type Design Change (continued):

1. (Continued) later TCCA approved revision for Serial Number 680-0251. The modifications covered by this design approval for Serial Number 680-0121 are as per the data listed in the referenced AAL Master Data List.

2. Operation must be in accordance with TCCA approved AAL Flight Manual Supplement FMS465501, Revision 2, dated September 4, 2017, and TCCA approved September 19, 2017, or later TCCA approved revision.

3. For S/N 680-0121: Maintenance must be in accordance with Instructions for Continued Airworthiness (ICA's) and supplementary maintenance information in Section 4.3 of AAL Master Data List MDL465501, the data referenced therein, and the model 680 Maintenance Manual.

4. For S/N 680-0032 and S/N 680-0251: Maintenance must be in accordance with AAL Maintenance Manual Supplement MMS465501, Revision 1, dated July 13, 2020, or later TCCA accepted revision. MMS465501 contains TCCA approved Airworthiness Limitations (AWL's) in Section 15 at Revision IR, dated September 4, 2017, and TCCA approved December 7, 2017, or later TCCA approved revision.

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

3. This approval is limited to the following serial numbers: 680-0032, 680-0121 and 680-0251.

4. The aircraft must be operated in accordance with the “Limitation" section of AAL Flight Manual Supplement, document number FMS465501, Revision 2, dated September 4, 2017, or later TCCA approved revision.

5. Mandatory replacement time and/or inspection intervals are defined in the "Airworthiness Limitation” section of AAL Maintenance Manual Supplement, MMS465501, Revision A, dated September 4, 2017, or later TCCA accepted revision.

6. This installation approval does not constitute an operational approval.

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