STC ST09912AC

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

Part of .

ST09912AC Ameristar Air Cargo, Inc.

4400 Glenn Curtiss Drive, Suite 202 Addison, Texas 75001 Boeing DC-9-15F Jim Grigg Manager, Fort Worth ACO Branch Compliance & Airworthiness Division Aircraft Certification Service

Installation of cargo straps as the primary restraint of cargo to HCU-6/E pallets in accordance with Ameristar Air Cargo Master Data List (MDL), document number AAS-MDL-20-001, rev. A dated July 24, 2020, or later FAA approved revision.

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

2. Operation must be in accordance with Ameristar Air Cargo Weight and Balance Manual Supplement (WBMS) document number AAS-SSR-19-040, Rev C, dated June 15, 2020 or later FAA approved revision.

3. Maintenance must be in accordance with Ameristar Air Cargo Instructions for Continued Airworthiness (ICA) Document number AAS-ICA-19-001, Rev A, dated June 17, 2019, or later FAA approved revision.

4. This installation is limited to aircraft serial numbers 45826, 47010, 47014 and 47015 only.

Date of Application: January 12, 2018 Date of Issuance: August 28, 2020

A6WE Certification Basis: Continuation Sheet 25 Federal Aviation Regulations 3

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST09912AC

FAA Form 8110-2 (6/20) Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09912AC Certification Basis:

The certification basis for the Boeing DC-9-15F aircraft is as follows:

The type certification basis for parts not changed or not affected by the change is shown on TCDS A6WE.

Certification Basis for model DC-9F-15 are as follows:

The original certification basis is per CAR 4b, dated December 31, 1953 as noted in TCDS A6WE. For this modification, compliance was shown to 14 CFR Part 25 as noted in (c).

The modification certification basis for parts changed or affected by the change since the reference application date, January 12, 2018, is based upon Part 25 as amended by Amendment 25-146 as follows:

Regulations at the latest amendment 25-0 through 25-146

25.23, 25.27(b)(c), 25.301, 25.303, 25.305, 25.307, 25.787, 25.853, 25.1519, 25.1529, 25.1583(c)(2) Regulations at an intermediate amendment

25.25(a)(2)(3) Regulations at the amendment level in TCDS A6WE None.

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