STC ST09915AC

ST09915AC L2 Aviation 2100 E. Hwy 290 Dripping Springs, TX 78620 Part 25 the Federal Aviation Regulations A1NM The Boeing Company 767-200 The installer must determine whether this design change is compatible with previously approved modifications. 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.

(See Continuation Sheet 3 of 3) 07/15/2020 05/07/2025 11/02/2020 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 4 Installation of a KA SATCOM system in accordance with Master Drawing List 2325-B125-MDL, Revision D, dated October 28, 2020, or later FAA approved revision. Airplane Flight Manual Supplement 2325-B125-AFM, Revision IR, dated July 22, 2020, is required.

FAA 8110-2 ( 10/24) Page 2 of __

ST09915AC 05/07/2025 4

ST09915AC 05/07/2025 Limitations and Conditions (continued):

Note: The FAA has reviewed the applicant's assessment showing that this modification does not impact the existing electrical wiring interconnection system instructions for continued airworthiness (EWIS ICA) and found that no additional EWIS ICA tasks are required.

Certification Basis:

Based on 14 CFR §§21.115 and 21.101, and FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Boeing 757-200/200CB/200PF/300 series is as follows:

a. The type certification basis for Boeing 767 series airplanes is shown on TCDS A1NM for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by this change since the reference data of application, January 15, 2020, is based upon Part 25 as amended by Amendment 25-145 and Part 26 as amended by Amendment 26-6.

Regulations at the amendment level in TCDS A1NM (25-1 through 25-37)

25.23; 25.301; 25.303; 25.333; 25.337; 25.341; 25.351; 25.581; 25.601; 25.607; 25.609(a),(b);

25.615; 25.619(a); 25.771(a); 25.1301; 25.1519; 25.1541(b)

Regulations at an intermediate amendment Regulations at amendment 25-38:

25.1322

Regulations at amendment 25-72:

25.307(a),(b); 25.869(a)(4)

Regulations at amendment 25-86:

25.331 3 4

ST09915AC 05/07/2025 Certification Basis (Continued):

Regulations at amendment 25-136:

25.773(a)(2)

Regulations at latest amendment

25.29(a); 25.251; 25.305(a),(b),(e); 25.321; 25.365(a),(b),(d),(e),(f); 25.561(a),(b); 25.571;

25.603; 25.605(a); 25.611; 25.613(a),(b),(c); 25.625(a); 25.629(a); 25.789(a); 25.841; 25.853

(a); 25.901(c); 25.903(c); 25.981(a)(3),(d); 25.1307(c); 25.1309(b),(c),(d),(e); 25.1351(a);

25.1353(a),(c); 25.1355(a),(c); 25.1357(a),(c),(e); 25.1360; 25.1381(a),(b); 25.1401(b); 25.1419

(a); 25.1431(a),(b),(c),(d); 25.1529; 25.1581; 25.1583(c)(1); 25.1585(a),(b); Appendix H

14 CFR Part 26 regulations Based on 14 CFR §21.101(g), applicable provisions of 14 CFR part 26 are included in the certification basis. For any future 14 CFR part 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections. As of the issuance date of this STC, compliance has been found for the following regulations 14 CFR §26.11 - amendment 26-0,

26.45 - amendment 26-4 and 26.47 - amendment 26-1.

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