STC ST11381DS

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate issued to:

ST11381DS Aircraft Systems and Manufacturing, Inc.

1717 Universal City Blvd.

Universal City, TX 78148 .

Title14 of the Code of Federal Regulations A28NM Make: Original Product Type Certificate Number:

Airbus A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, A321-232 Installation of an Avionica WiFi System in accordance with Aircraft Systems and Manufacturing, Inc.

Master Data List 5754-0000-00, Rev IR, dated October 22, 2021, or later ODA approved revision. Airplane Flight Manual Supplement Document No. 5754-2160-00, Rev IR, dated September 7, 2021, or later FAA approved revision, is a required part of this modification.

The installer must determine whether this design change is compatible with previously approved modificaitons. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission. See continuation on Page 3 of 4.

March 19, 2021 October 22, 2021 By Direction of the Administrator Signature:

Robert H. Wilcox ODA administrator, ODA-834704-SW

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ 3

ST11381DS

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ 3

ST11381DS Limitations and Conditions continued:

Instructions for Continued Airworthiness (ICA) Document No. 5754-2170-00, Rev IR, dated May 13, 2021, or later FAA accepted revision, is a required part of this modification. Airworthiness Limitations inspections per 14 CFR Part 25, Appendix H are contained in Chapter 7 of the ICA.

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.

This STC is contingent on prior or concurrent incorporation of FAA STC No. ST11382DS, Installation of an Iridium Communication System.

Certification Basis:

The type certification basis for the airplanes for parts not changed or not affected by this change is shown on TCDS A28NM, Revision 46, dated August 3, 2021.

The certification basis for parts changed or affected by this change is based upon 14 CFR Part 25 as amended through Amendment 25‐146 and Part 26 as amended through Amendment 26‐6.

Regulations at the latest amendment 25‐0 through 25‐146 used for this modification:

14 CFR § 25.29 (b); 25.301(a,b); 25.303; 25.305(a,b); 25.307(a); 25.561(a,b3)); 25.601; 25.603;

25.605(a); 25.607; 25.609(a); 25.611(a,b); 25.613(a,b,c); 25.625(a,b,c); 25.771(a); 25.773(a1);

25.777(a); 25.789(a); 25.831(b,c); 25.863; 25.899(a,b1); 25.1301(a); 25.1302; 25.1307 (c);

25.1309(a,b,d,e); 25.1310(a1),(a2),(a3i); 25.1321(e); 25.1322(b,d,e1,f); 25.1351(a); 25.1353(a,c);

25.1355(a); 25.1357 (a,c,e); 25.1381(b); 25.1431(c); 25.1529; 25.1541; 25.1581(a1,a2,b,d);

25.1583(c1)(h); 25.1585(a).

Regulations at the latest amendment 26‐0 through 26‐6:

14 CFR § 26.11(c).

Regulations at an intermediate amendment:

14 CFR § 25.869 (a1,4) Amdt. 25‐113; 25.981 (a3) Amdt. 25‐102.

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FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of 3 ___ 3