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FAA-listed STC holder

Aviation Communication and Surveillance Systems (ACSS) LLC STCs

The Jun 30, 2026 FAA DRS snapshot lists 40 selected supplemental type certificates with status Current under Aviation Communication and Surveillance Systems (ACSS) LLC. The records span 278 public aircraft directories and 3 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

40
listed Current at snapshot
278
aircraft directories
3
modification categories
Jun 4, 2025
latest recorded revision

Modification mix

Other aircraft modifications20
Avionics18
Safety and emergency equipment2

Aircraft represented

Boeing 737-700 Series712 STCsBoeing 737-800 Series675 STCsBoeing 767-300 Series596 STCsBoeing 737-300 Series522 STCsBoeing 747-400 Series518 STCsBombardier CL-600-2B16 (CL-604)515 STCsBoeing 757-200 Series510 STCsBoeing 727-200 Series450 STCsGulfstream Aerospace GV-SP430 STCsBombardier CL-600-2B16 (CL-601-3A)422 STCsBoeing 737-400 Series411 STCsBombardier CL-600-2B16 (CL-601-3R)411 STCsBoeing 767-200 Series357 STCsBombardier CL-600-1A11 (CL-600)351 STCsGulfstream Aerospace G-IV332 STCsBoeing 777-200 Series325 STCsGulfstream Aerospace G-1159A308 STCsGulfstream Aerospace G-1159304 STCsBombardier CL-600-2A12 (CL-601)300 STCsBoeing 737-900 Series292 STCs

Recently revised records

Showing the 40 most recently revised records. Category directories provide the complete paginated discovery path.

ST04219ATAvionics

Version 7.1 Software upgrade of the Aviation Communication & Surveillance Systems (ACSS) TCAS II, Model TCAS 2000, P/N 7517900-10020 (Configuration 1) or Model T2CAS, P/N 9000000-11414 (Configuration 2). This upgrade allows for the installation of Configuration 1 TCAS II. The installation also includes a Mode S ATC Transponder System with ADS-B Out, Model XS-950, P/N 7517800- 10400.

FAA holder: Aviation Communication and Surveillance Systems (ACSS) LLC

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