STC ST10938SC

ST10938SC L2 Aviation 2100 Hwy 290 Dripping Springs, TX 78620 Part 25 the Federal Aviation Regulations A2NM The Boeing Company See Continuation Sheet 3 of 5 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 5) 11/08/2008 04/15/2019 04/30/2019 11/22/2024 03/17/2009 09/23/2009 09/01/2010 02/05/2019 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 5 Installation of an Iridium Communication System (ICS) in accordance with Master Drawing List 2325-B47-MDL, Revision U, dated December 5, 2018, or later FAA approved revision. Airplane Flight Manual Supplement 2325-B47-AFM, Revision D, dated December 18, 2018, is required.

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

ST10938SC 03/11/2025 5

ST10938SC 03/11/2025 Model (Continued):

757-200 Series; 757-200CB Series; 757-200PF Series; 757-300 Series

Date Reissued (Continued):

01/29/2025; 03/11/2025

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 757 series airplanes is shown on TCDS A2NM for parts not changed or not affected by the change.

The certification basis amendment levels as listed on TCDS A2NM are as follows:

-200/200CB/200PF - Amendments 25-1 through 25-45 with some exceptions listed in TCDS.

-300 - Amendments 25-1 through 25-85 with some exceptions listed in TCDS.

b. The certificate basis for parts changed or affected by the change since the reference date of application June 21, 2018 is based upon part 25 as amended by Amendment 25-144 and 14 CFR part 26 as amended by Amendment 26-1.

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 this modification was determined to be:

For all 757-200 Series, 757-200CB Series and 757-200PF Series:

ST10938SC 03/11/2025 Certification Basis (Continued):

Regulations at the amendment level in TCDS A16WE (25-0 through 25-45)

25.23(a); 25.27; 25.301; 25.303; 25.581; 25.601; 25.609(a); 25.611; 25.771(a); 25.777(a), (c);

25.1322(b), (d); 25.1355(a); 25.1519; 25.1523; 25.1541(b); 25.1555(a)

Regulations at an intermediate amendment Regulations at amendment 25-54;

25.1529

Regulations at amendment 25-72:

25.307(a); 25.341(c); 25.625(a); 25.869(a)(4)

Regulations at amendment 25-80:

25.1316(b), (c)

Regulations at amendment 25-96:

25.571(a), (b)

Regulations at amendment 25-121:

25.1419(a)

Regulations at the latest amendment 25-0 through 25-144

25.25(a); 25.29(a); 25.251(a); 25.305(a), (b); 25.365(a), (b), (c), (d); 25.561(c); 25.603; 25.605

(a); 25.613(a), (b), (c); 25.773(a); 25.789(a); 25.899; 25.981(a)(3), (d); 25.1301(a); 25.1307(c);

25.1309(a), (b), (c), (d), (e); 25.1351(a); 25.1353(a), (c); 25.1357(a), (c); 25.1360; 25.1381;

25.1431; 25.1457(a); 25.1459(c); 25.1581; 25.1585(a); Appendix H

For 757-300 Series:

ST10938SC 03/11/2025 Certification Basis (Continued):

Regulations at the amendment level in TCDS A16WE (25-0 through 25-85)

25.23(a); 25.25(a); 25.27; 25.29(a); 25.301; 25.303; 25.307(a); 25.341(c); 25.581; 25.601;

25.603; 25.605(a); 25.609(a); 25.611; 25.625(a); 25.771(a); 25.777(a), (c); 25.789(a); 25.869(a)

(4); 25.1307; 25.1316(b), (c); 25.1322(b), (d); 25.1351(a); 25.1355(a); 25.1381; 25.1519;

25.1523; 25.1529; 25.1541(b); 25.1555(a)

Regulations at an intermediate amendment Regulations at amendment 25-96:

25.571(a), (b)

Regulations at amendment 25-121:

25.1419(a)

Regulations at the latest amendment 25-0 through 25-144

25.251(a); 25.305(a), (b); 25.365(a), (b), (c), (d); 25.561(c); 25.613(a), (b), (c); 25.773

(a); 25.899; 25.981(a)(3), (d); 25.1301(a); 25.1309(a), (b), (c), (d), (e); 25.1353(a), (c);

25.1357(a), (c); 25.1360; 25.1431; 25.1457(a); 25.1459(c); 25.1581; 25.1585(a);

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 and

26.47 - amendment 26-1.

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