FAA-listed STC holder

STC Twenty One, Ltd. STCs

The Jun 30, 2026 FAA DRS snapshot lists 6 selected supplemental type certificates with status Current under STC Twenty One, Ltd.. The records span 11 public aircraft directories and 3 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

aircraft directories

modification categories

Nov 23, 2018

latest recorded revision

Modification mix

Cabin and interiors3 Other aircraft modifications2 Aircraft connectivity1

Aircraft represented

Boeing 737-700 Series712 STCs Boeing 737-800 Series675 STCs Boeing 767-300 Series596 STCs Boeing 737-300 Series522 STCs Boeing 757-200 Series510 STCs Boeing 737-400 Series411 STCs Bombardier BD-700-1A10398 STCs Boeing 767-200 Series357 STCs Boeing 737-500 Series323 STCs Boeing 737-600 Series255 STCs Boeing 757-300 Series157 STCs

Recently revised records

Showing the 6 most recently revised records. Category directories provide the complete paginated discovery path.

6 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

STC Twenty One, Ltd. supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
ST04277NY Installation of Air Conditioning Filter. Other aircraft modifications View record	Boeing 757-200 SeriesTC A2NM Boeing 757-300 SeriesTC A2NM	Current at cited snapshot Revised Nov 23, 2018 Application: May 12, 2017	FAA holder: STC Twenty One, Ltd. FAA authority record
ST04241NY Installation of a custom corporate interior. Cabin and interiors View record	Boeing 757-200 SeriesTC A2NM	Current at cited snapshot Revised Oct 29, 2018 Application: Jul 17, 2014	FAA holder: STC Twenty One, Ltd. FAA authority record
ST03880NY Installation of Corporate VIP Interior. Cabin and interiors View record	Boeing 737-700 SeriesTC A16WE	Current at cited snapshot Revised Mar 29, 2017 Application: Jan 26, 2015	FAA holder: STC Twenty One, Ltd. FAA authority record
ST03718NY Introduction of upgraded IFE, Cabin lighting and universal outlets. Cabin and interiors View record	Bombardier BD-700-1A10TC T00003NY	Current at cited snapshot Revised Jun 28, 2016 Application: Apr 6, 2016	FAA holder: STC Twenty One, Ltd. FAA authority record
ST03574NY Installation of antenna provisions. Aircraft connectivity View record	Boeing 767-200 SeriesTC A1NM Boeing 767-300 SeriesTC A1NM	Current at cited snapshot Revised Oct 21, 2015 Application: Apr 22, 2015	FAA holder: STC Twenty One, Ltd. FAA authority record
ST03560NY Activation of Controller-Pilot Data-Link Communications (CPDLC) capability on Spectralux "D-LINK" ACARS VDL Mode\n2 transceiver. Other aircraft modifications View record	Boeing 737-300 SeriesTC A16WE Boeing 737-400 SeriesTC A16WE Boeing 737-500 SeriesTC A16WE Boeing 737-600 SeriesTC A16WE Boeing 737-700 SeriesTC A16WE Boeing 737-800 SeriesTC A16WE	Current at cited snapshot Revised Oct 6, 2015 Application: Aug 3, 2013	FAA holder: STC Twenty One, Ltd. FAA authority record

Modification mix

Aircraft represented

Recently revised records

Installation of Air Conditioning Filter.

Installation of a custom corporate interior.

Installation of Corporate VIP Interior.

Introduction of upgraded IFE, Cabin lighting and universal outlets.

Installation of antenna provisions.

Activation of Controller-Pilot Data-Link Communications (CPDLC) capability on Spectralux "D-LINK" ACARS VDL Mode\n2 transceiver.