STC ST12434AC

ST12434AC Aviation Devices & Electronic Components, LLC 3215 W. Loop 820 S Fort Worth, TX 76116 Part 25 the Title 14, Code of Federal Regulations A28NM Airbus SAS *See Continuation Sheet 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) 10/24/2024 10/06/2026 08/03/2026 for Jason S. Deutschman Acting Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3 Replacement of the wing fuel tank access panel gasket of the Airbus SAS aircraft, in accordance with Master Data List, AD261000-0-D, Revision C, dated December 12, 2025 or later FAA approved revision. The Instructions for Continued Airworthiness (ICA) Document No.

AD261000-A-03, Revision A, dated December 12, 2025 or later FAA approved revision.

ST12434AC 10/06/2026 3

ST12434AC 10/06/2026 *Model (Continued):

A318 (-111, -112, -121, -122), A319 (-111, -112, -113, -114, -115, -131, -132, -133, -151N, -153N, -171N, -173N), A320 (-111, -211, -212, -214, -216, -231, -232, -233, -251N, -252N, -253N, -271N, -272N, -273N), A321 (-111, -112, -131, -211, -212, -213, -231, -232, -251N, -252N, -253N, -271N, -272N, -251NX, -252NX, -253NX, -271NX, and -272NX)

The Installation Instructions, Document Number AD261000-0-13, Revision A, dated March 31, 2025, or later approved revision, shall be made available to the operator at the time of installation.

This STC is applicable to all serial numbers for the model list shown on the continuation sheet.

The Airworthiness Limitations Document No. AD261000-0-15, Revision IR, dated January 31, 2025 or later FAA approved revision.

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