STC ST11094DS

Number: ST11094DS

This certificate issued to: American Airlines, Inc.

M&E Engineering Division 3900 North Mingo Road, MD 537/TUL Tulsa, Oklahoma 74116

Part 25 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: A28NM Make: Airbus Model: A321-253NX, A321-253N

Installation of hanging soft dividers and sidewall mounted literature pockets in accordance with Master Data List, 103417-MDL, Revision G, dated January 17, 2025 or later FAA approved revision and Serial Number Eligibility Report 103417-SNER, Revision E, dated July 12, 2024 or later FAA approved revision.

This approval should not be incorporated in any aircraft of this specific model until compatibility of this modification with previously approved modifications has been determined by the installer. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

(Limitations and Conditions continued on page 3 of 4)

Date of Application: March 05, 2020 Date Reissued:

Date of Issuance: July 18, 2020 Date Amended: February 17, 2025 By direction of the Administrator

Signature Mandy K. Lucke

Title: ODA-700094-SW Administrator

FAA Form 8110-2 (5/14) Page 1 of 4

Transfer the ownership of Supplemental Type Certificate Number: ST11094DS

To (Name and address of transferee)

From (Name and address of grantor)

FAA Form 8110-2 (5/14) Page 2 of 4

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST11094DS

The Instructions for Continued Airworthiness, Document Number 103417-ICA, Revision H, dated October 23, 2024, or later FAA/ODA accepted revision shall be made available to the operator at the time of installation. The aircraft shall be maintained in accordance with the applicable Instructions for Continued Airworthiness. A revised EWIS ICA is not required for this STC.

This STC is contingent on prior or concurrent installation of BE Aerospace Service Bulletin 25-1073382-01, American Airlines A321-200 NX and Oasis Retrofit Meridian Headrest Cover Change, BMFT Lockout, Recline Lockout, Recline Change, “Literature Only” Placard Addition, Rev New dated June 17, 2020, or later approved revision.

This STC is contingent on concurrent incorporation of the following FAA approved service bulletin:

For Aircraft Serial numbers 7589, 7639, 7861, 7942, 7999, 8120, 8126, 8246, 8819, 8829 Airbus Service Bulletin for Equipment/Furnishing – PAX Compartment – Cabin Integration, SB A320-25-1CGW, Revision 01 dated February 13, 2025 or later approved revision.

Airbus Service Bulletin for Equipment/Furnishing - Overhead Stowage Compartment – Install XL Fixed Bins and Ceilings, SB A320-25-1CGX, Revision 00 dated July 13, 2024, or later approved revision.

FAA Form 8110-2 (5/14) Page 3 of 4

Certification Basis:

Based on 14 CFR 21.115 and 21.101, and the FAA policy for non-significant changes in FAA Order 8110.48, the certification basis for the Airbus Model A321-253N and the A321-253NX aircraft for the change is as follows:

a. The Type Certification basis for Airbus Model A321-253N and A321-253NX airplanes are shown on TCDS A28NM for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, March 05, 2020 is based upon Part 25, as amended by Amendment 25-146 and Part 26 as amended by Amendment 26-

6. Based on 14 CFR 21.115 and 21.101, and the FAA policy for non-significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be:

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

25.301, 25.303, 25.562(a)(c)(4)(5)(6)(7)(8), 25.601, 25.603, 25.605, 25.609, 25.611(a), 25.619, 25.789(a), 25.803(a),

25.812(e)(1), 25.815, 25.817, 25.853(a)(d), 25.1411(f), 25.1423(c), 25.1447(a)(c)(1), 25.1529, 25.1541

Regulations at an intermediate amendment level

25.613 Amendment 72, 25.869(a)(4) Amendment 72, 25.981(a)(3)(d) Amendment 125

Regulations at the amendment level in TCDS A28NM

25.21(a)(1), 25.29, 25.305(a)(b), 25.307(a), 25.365(g), 25.561, 25.625, 25.785(a)(b)(d)(e)(i)(1)(3), 25.787(a), 25.791,

25.811(b), 25.1301(a)(b)(c)(d), 25.1309(a)(b)(d)(g), 25.1353(a)(b), 25.1357(a)(c), 25.1431(a)(c)

Special Conditions:

FAA Special Conditions 25-375-SC, “Special Conditions: Airbus A318, A319, A320 and A321 Series Airplanes;

Inflatable Restraints”, dated 12 November, 2008; SC5, SC8

FAA Special Conditions 25-403-SC, “Special Conditions: Airbus Model A318, A319, A320, and A321 Series Airplanes; Seats with Non-Traditional, Large, Non-Metallic Panels”, dated 09 March 2010

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 of this STC, compliance has been found for the following regulations 14 CFR §

26.11(c)(d)(5) (Amendment 26-0).

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FAA Form 8110-2 (5/14) Page 4 of 4