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FAA-listed STC holder

STC Twenty One Limited STCs

The Jun 30, 2026 FAA DRS snapshot lists 7 selected supplemental type certificates with status Current under STC Twenty One Limited. The records span 43 public aircraft directories and 4 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

7
listed Current at snapshot
43
aircraft directories
4
modification categories
Jun 14, 2024
latest recorded revision

Modification mix

Aircraft connectivity2
Avionics2
Other aircraft modifications2
Cabin and interiors1

Aircraft represented

Boeing 757-200 Series510 STCsBoeing 737-400 Series411 STCsBoeing 757-300 Series157 STCsAirbus SAS A320-214139 STCsAirbus SAS A320-232136 STCsAirbus SAS A321-211128 STCsGulfstream Aerospace LP Gulfstream 200124 STCsAirbus SAS A320-212124 STCsAirbus SAS A320-211123 STCsAirbus SAS A321-231123 STCsAirbus SAS A320-233121 STCsAirbus SAS A320-231120 STCsAirbus SAS A321-232110 STCsAirbus SAS A319-133109 STCsBoeing 737-8109 STCsAirbus SAS A321-213108 STCsAirbus SAS A319-112107 STCsAirbus SAS A319-115107 STCsAirbus SAS A319-132106 STCsAirbus SAS A320-216106 STCs

Recently revised records

Showing the 7 most recently revised records. Category directories provide the complete paginated discovery path.