# STCs approved under this data sheet: TCDS A21EU A list on [TCDS A21EU](https://openairdocs.org/tcds/A21EU.md). Current certificates first, most recently changed first. Page 1 of 3 · 115 STCs - [STC SA2622NM](https://openairdocs.org/stc/SA2622NM.md): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101) · Precise Flight Inc. - [STC SA8667SW](https://openairdocs.org/stc/SA8667SW.md): Installation of Goodrich Avionics Systems TCAS 791 · Acron Aviation Inc. - [STC SA03020AT](https://openairdocs.org/stc/SA03020AT.md): Installation of a Sandel Model ST3400 Terrain Awareness and Warning System (TAWS) · Woven Electronics LLC - [STC ST03269AT](https://openairdocs.org/stc/ST03269AT.md): Installation of a Honeywell CAS 67A Traffic Alert and Collision Avoidance System IT (TCAS IT) and Dual MST 67A Mode S Transponder · Woven Electronics LLC - [STC SA00010SE](https://openairdocs.org/stc/SA00010SE.md): Mk VI ground proximity warning system installed · Honeywell International Inc - [STC ST01930LA](https://openairdocs.org/stc/ST01930LA.md): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI) · Sandel Avionics LLC - [STC SA00063WI-D](https://openairdocs.org/stc/SA00063WI-D.md): Installation of Bendix/King CAS 66A TCAS I System, or provisions for CAS 66A TCAS I System. · Honeywell International Inc - [STC SA01452CH](https://openairdocs.org/stc/SA01452CH.md): Installation of an air ambulance conversion kit. · Med-Pac Inc. - [STC SA02677LA](https://openairdocs.org/stc/SA02677LA.md): Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-700 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out · Aviation Communication and Surveillance Systems (ACSS) LLC - [STC SA02678LA](https://openairdocs.org/stc/SA02678LA.md): Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-600 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out · Aviation Communication and Surveillance Systems (ACSS) LLC - [STC SA00344BO PAGE 2](https://openairdocs.org/stc/SA00344BO%20PAGE%202.md): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · Whelen Aerospace Technologies - [STC SA00433SE](https://openairdocs.org/stc/SA00433SE.md): Air medical installation. · LifePort LLC - [STC ST04340NY](https://openairdocs.org/stc/ST04340NY.md): Installation of TCAS 7.1 (ACAS II) upgrade of Prior Existing TCAS 7.0 · Scandinavian Avionics Design ApS - [STC ST03776NY](https://openairdocs.org/stc/ST03776NY.md): Modification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II) · Scandinavian Avionics Design ApS - [STC SA02606CH](https://openairdocs.org/stc/SA02606CH.md): Install Air Ambulance conversion · Paul/ Lanna Egan LLC - [STC SA00674WI-D](https://openairdocs.org/stc/SA00674WI-D.md): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II system installation. · Rockwell Collins Inc - [STC SA00377DE](https://openairdocs.org/stc/SA00377DE.md): ONE-ONLY STC, S/N 745: Installation of an oversize convex observer window in the most aft standard cabin window position. · Straight Flight Inc - [STC SA482NE](https://openairdocs.org/stc/SA482NE.md): Remove existing starter-generator and install Aircraft Parts starter - generator P/N 300SG121Q. · Shurka Aerospace Inc - [STC ST02540AT-D](https://openairdocs.org/stc/ST02540AT-D.md): Installation of replacement fuel tank sealant system · FFC Manufacturing - [STC SA02621CH](https://openairdocs.org/stc/SA02621CH.md): Installation of a cargo door · Murray Aircraft Modifications - [STC SA02593CH](https://openairdocs.org/stc/SA02593CH.md): Installation of a cargo floor · Murray Aircraft Modifications - [STC SA02592CH](https://openairdocs.org/stc/SA02592CH.md): Installation of a pressure bulkhead · Murray Aircraft Modifications - [STC SA5862NM](https://openairdocs.org/stc/SA5862NM.md): Installation of interior fluorescent cabin lighting system. · Bruce Aerospace Inc. - [STC SA02542CH](https://openairdocs.org/stc/SA02542CH.md): Install Cargo Net · Murray Aircraft Modifications - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM.md): Precise Flight Inc. Pulselite Control System · Precise Flight Inc - [STC SA1019GL](https://openairdocs.org/stc/SA1019GL.md): Installation of Woodward P/N A213796 control box, electrical connector, and remote switch. · Ontic Engineering and Manufacturing Inc. - [STC SA01306WI-D](https://openairdocs.org/stc/SA01306WI-D.md): Modification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation. · Rockwell Collins Inc - [STC ST02284NY](https://openairdocs.org/stc/ST02284NY.md): Installation of Concorde RG-380 Battery. · Infinion Certification Engineering Inc. - [STC SP00400SE](https://openairdocs.org/stc/SP00400SE.md): Installation of various propeller electrical de-icer models · SMR Technologies - [STC SA01141WI-D](https://openairdocs.org/stc/SA01141WI-D.md): Modification of a single or dual Collins TDR-94 or TDR-94D Mode S Transponder System installation with CTL-92 control head to a Flight ID capable Collins TDR-94 or TDR-94 Mode S Transponder System installation with CTL-92E control head. · Rockwell Collins Inc - [STC SA1372GL](https://openairdocs.org/stc/SA1372GL.md): Installation of McCauley propellers. · McCauley Propeller Systems - [STC ST03088AT](https://openairdocs.org/stc/ST03088AT.md): Installation of a Honeywell MK VI Enhanced Ground Proximity Warning Systems (EGPWS) · Chippewa Aerospace, Inc. - [STC SA1055GL](https://openairdocs.org/stc/SA1055GL.md): Removal of TC P/N 213761 or213763 propeller synchrophaser control box and electrical connector and installation of P/N A213796 control box, electrical connector, and remote switch. · Ontic Engineering and Manufacturing Inc. - [STC SA01945NY](https://openairdocs.org/stc/SA01945NY.md): Cockpit voice recorder replacement with Universal CVR 30B or CVR 120. · MidCanada Mod Center - [STC SA572EA](https://openairdocs.org/stc/SA572EA.md): Installation of Goodrich Model 5735K deicer kit (P/N 5735 deicer boot, P/N D-5735-1 cable, P/N 5735H hardware kit). Limited to aircraft which incorporate Goodrich Propeller Deicing Systems equipped with Goodrich Propeller Deicer Boot P/N 4E1185-5 on Hartzell propellers as listed on STC SA572EA eligibility list. · Goodrich Corp. - [STC SA4963NM](https://openairdocs.org/stc/SA4963NM.md): Installation of a NSA sunvisor system. · Rosen Sunvisor Systems LLC - [STC SA3814SW](https://openairdocs.org/stc/SA3814SW.md): Installation of Sperry SPZ-200B autopilot system. · BAE Systems Regional Aircraft Inc. - [STC SA5440SW](https://openairdocs.org/stc/SA5440SW.md): Installation of basic interior. · BAE Systems Regional Aircraft Inc. - [STC SA5441SW](https://openairdocs.org/stc/SA5441SW.md): Installation of dual Collins VIR30A navigation receiver, dual Collins VHF20B communication transmitter/receiver, dual Collins DME-40 distance measuring equipment, single Collins TDR-9 ATC transponder, dual Baker M1035 cockpit audio system. · BAE Systems Regional Aircraft Inc. - [STC SA5442SW](https://openairdocs.org/stc/SA5442SW.md): Installation of dual SAFT batteries with Foxtronics BTI-600-2A battery temperature system. · BAE Systems Regional Aircraft Inc. - [STC SA5443SW](https://openairdocs.org/stc/SA5443SW.md): Installation of dual KGS electronics SPC-60A static inverters. · BAE Systems Regional Aircraft Inc. - [STC SA5444SW](https://openairdocs.org/stc/SA5444SW.md): Installation of dual Sperry SPI-501 flight director system with optional Sperry RI-300 radio altimeter, CM-600 comparator and VA-100 voice advisory systems. · BAE Systems Regional Aircraft Inc. - [STC SA5445SW](https://openairdocs.org/stc/SA5445SW.md): Installation of Foster AD-612 RNAV computer. · BAE Systems Regional Aircraft Inc. - [STC SA5446SW](https://openairdocs.org/stc/SA5446SW.md): Installation of Collins WXR-300 weather radar system and optional RNS-300 radar navigation system. · BAE Systems Regional Aircraft Inc. - [STC SA5447SW](https://openairdocs.org/stc/SA5447SW.md): Installation of Fredrickson Jetfone communication system. · BAE Systems Regional Aircraft Inc. - [STC SA5448SW](https://openairdocs.org/stc/SA5448SW.md): Installation of dual IDC-523-26700-127 or IDC-523-26700-147/247 airsspeed indicators, Single IDC-570-24929-406 copilot's altimeters, single IDC 40620-E1300 copilot's vertical speed indicator and single Sperry AZ-241 air data computer. · BAE Systems Regional Aircraft Inc. - [STC SA5449SW](https://openairdocs.org/stc/SA5449SW.md): Installation of Jet AI-804R standby horizon. · BAE Systems Regional Aircraft Inc. - [STC SA5450SW](https://openairdocs.org/stc/SA5450SW.md): Installation of Foxboro fuel flow system. · BAE Systems Regional Aircraft Inc. - [STC SA5462SW](https://openairdocs.org/stc/SA5462SW.md): Installation of Dorne-Margolin DMN 4-17-1/A NAV antennae. · BAE Systems Regional Aircraft Inc. - [STC SA5775SW](https://openairdocs.org/stc/SA5775SW.md): Installation of dual Sperry EDZ-600 electronic flight instrument system (EFIS). · BAE Systems Regional Aircraft Inc. Next page: https://openairdocs.org/tcds/A21EU/stcs.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT s.stc_number, s.description, s.holder, s.status, s.status_date FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE tcds_number = 'A21EU') ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number ``` This list as a web page: https://openairdocs.org/tcds/A21EU/stcs --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.