STC SA00185MC

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate SA00185MC Number:

This certificate issued to: Vertex Aerospace 8970 Hangar Road San Angelo, TX 76904 Part of .

Make: Textron Aviation Inc. Original Product A24CE 7\SH&HUWLILFDWH1XPEHU Model: B300C (UC-12W) Description of Type Design Change:

Upgrade of a Collins Aerospace ARC-210 COMM System with documents: (1) Vertex Aerospace Master Data List, B350-MDL-0080, Revision IR, dated 1/25/2021, or later FAA approved revisions. (2) Vertex Aerospace Instructions for Continued Airworthiness (ICA), B350-ICA-0080, Revision IR, dated 1/05/2021, or later FAA accepted revision. The ICA and its contents must be incorporated into the operator's maintenance program. (3) Vertex Aerospace Aircraft Flight Manual Supplement (AFMS), B350-AFMS-0080, Revision IR, dated 1/25/2021, 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)

09/08/2020 Date of Application: Date Reissued:

01/26/2021 Date of Issuance: Date Amended:

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United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate SA00185MC Number:

Date oI transfer:

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United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA00185MC Date of Issuance: 1/26/2021 Limitations and Conditions (continued):

2. 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.

3. This STC is applicable to all serial numbers for the Make: Textron Aviation Inc.

Model: B300C (UC-12W) aircraft with Proline 21 and modified by the installation of Hawker Beechcraft Kit No. 130-3034-0001.

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 Make: Textron Aviation Inc. Model:

B300C (UC-12W) aircraft is as follows:

(1) The type certification basis for Make: Textron Aviation Inc. Model: B300C (UC-12W) aircraft is shown on TCDS A24CE for parts not changed or not affected by the change.

(2) The certification basis for parts changed or affected by the change since the reference date of application 09/08/2020, is based upon Part 23 as amended by Amendment 23-34 with the exception of those above amendment 23-34 listed below.

Regulations at later amendment than 23-34:

14 CFR Part 23.1309(a)(1) amdt 23-49 14 CFR Part 23.1351(a)(1)(2)(ii) amdt 23-49 14 CFR Part 23.1353(h) amdt 23-49 14 CFR Part 23.1357(a)(c)(1) amdt 23-43 14 CFR Part 23.1431(b) amdt 23-49 14 CFR Part 23.1581(a)(2)(d) amdt 23-45 14 CFR Part 23.1585(a) amdt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