STC ST02539LA
FAA DRS lists ST02539LA as Current · Issued, held by Aviation Communication and Surveillance Systems (ACSS) LLC, for Airbus A321-111, Airbus A321-112, and Airbus A321-131, and 5 more aircraft configurations. Recorded change: Upgrade of TCAS, Transponder and Activation of NextGen ADS-B Out. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
ST02539LA identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Airbus A321-111, Airbus A321-112, and Airbus A321-131, and 5 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
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Related avionics STCs
Installation of Litton Triple LTN-92 Inertial Navigation Systems (INS) and dual LTN-2001 Global Positioning Sensors (GPS).
FAA holder: Northrop Grumman Systems Corporation
Installation of Litton Dual LTN-410 Flight Management Systems (FMS) with embedded Global Positioning Sensors (GPS) receivers.
FAA holder: Northrop Grumman Systems Corporation
Modification of Litton LTN-92 and LTN-72 Inertial Navigation Systems (INS) to implement the Area Navigation (RNAV) updating capability.
FAA holder: Northrop Grumman Systems Corporation
Installation of Single Litton LTN-450 Navigation Management Systems (NMS) with embedded Global Position System (GPS) receiver and provisions for dual LTN-450 NMS.
FAA holder: Northrop Grumman Systems Corporation