# STCs that may be installed: N2WC A list on [N2WC](https://openairdocs.org/aircraft/N2WC.md). Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do. In force first, then newest. Page 1 of 2 · 77 STCs - [STC ST01305WI-D](https://openairdocs.org/stc/ST01305WI-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 in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision. · Rockwell Collins Inc - [STC ST12461IB](https://openairdocs.org/stc/ST12461IB.md): Installation of Cockpit Voice Recorder with optional RIPS Upgrade · Mid- Canada Mod Center - [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 ST04740NY](https://openairdocs.org/stc/ST04740NY.md): Installation of LAI Windshields · Lee Aerospace Inc. - [STC ST03424CH](https://openairdocs.org/stc/ST03424CH.md): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders · CMD Flight Solutions LLC - [STC ST04723NY](https://openairdocs.org/stc/ST04723NY.md): Installation of LAI Windshields · Lee Aerospace Inc. - [STC ST01930LA](https://openairdocs.org/stc/ST01930LA.md): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI) · Sandel Avionics LLC - [STC SA3891NM](https://openairdocs.org/stc/SA3891NM.md): Modification for increased ramp, takeoff, landing, and maximum zero fuel weights. · New Flight Corporation - [STC ST01935WI](https://openairdocs.org/stc/ST01935WI.md): Installation of windshield · Lee Aerospace - [STC ST01805WI](https://openairdocs.org/stc/ST01805WI.md): Modification of Rockwell Collins TCAS II System Installation with DC powered TCAS Transmitter Receiver Processor · Rockwell Collins Inc - [STC SA5933SW](https://openairdocs.org/stc/SA5933SW.md): Installation of a freon air conditioning system for use up to 18,000 feet. · Air Comm Corporation - [STC SA00526SE](https://openairdocs.org/stc/SA00526SE.md): Installation of emergency medical stretcher and base, oxygen, and electrical systems. · 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 ST00347BO](https://openairdocs.org/stc/ST00347BO.md): Modification to upgrade a BendixKing CAS 67A TCAS II system to CAS 67B TCAS II Change 7.1 · Pro Star Aviation, LLC - [STC ST00276WI](https://openairdocs.org/stc/ST00276WI.md): Installation of Kedeg Company 21BC11e Coaleser Assemly. · Purolator Facet, Inc - [STC SA1596NM](https://openairdocs.org/stc/SA1596NM.md): Installation of extended range fuselage auxiliary fuel tank. · Sierra Industries Ltd. - [STC SA1597NM](https://openairdocs.org/stc/SA1597NM.md): Installation of aft fuselage fuel tank fill system. · Sierra Industries Ltd. - [STC SA1598NM](https://openairdocs.org/stc/SA1598NM.md): Installation of tailcone baggage compartment modification,including access door modification. · Sierra Industries Ltd. - [STC SA2714NM](https://openairdocs.org/stc/SA2714NM.md): Installation of extended range fuselage auxiliary fuel tank · Sierra Industries Ltd. - [STC SA2736NM](https://openairdocs.org/stc/SA2736NM.md): Installation of two-zone temperature control system MU-300 (S/N A023SA only) · Sierra Industries Ltd. - [STC SA2737NM](https://openairdocs.org/stc/SA2737NM.md): Installation of aft fuselage maintenance access doors. · Sierra Industries Ltd. - [STC ST00965AT](https://openairdocs.org/stc/ST00965AT.md): Installation of pilot and co-pilot seat crotch belt. · Textron Aviation Inc - [STC SA2499SO](https://openairdocs.org/stc/SA2499SO.md): Installation of Whelen flashing anticollision light, P/N 90033. · Textron Aviation Inc - [STC ST00804AT](https://openairdocs.org/stc/ST00804AT.md): Installation of external power overvoltage protection system. · Textron Aviation Inc - [STC ST00345AT](https://openairdocs.org/stc/ST00345AT.md): Installation of emergency lighting system improvement modification. · Textron Aviation Inc - [STC ST00769AT](https://openairdocs.org/stc/ST00769AT.md): Installation of replacement emergency power supply. · Textron Aviation Inc - [STC ST01326AT](https://openairdocs.org/stc/ST01326AT.md): Installation of replacement cabin door step and assist handle. · Textron Aviation Inc - [STC ST02625AT](https://openairdocs.org/stc/ST02625AT.md): Installation of a LED Tail Position Navigation Light Replacement · Textron Aviation Inc - [STC ST02774AT](https://openairdocs.org/stc/ST02774AT.md): Installation of Dual Innovative Solutions and Support (IS&S) Air Data Display Units (ADDU) and a Single Analog Interface Unit (AIU) · Textron Aviation Inc - [STC ST02850AT](https://openairdocs.org/stc/ST02850AT.md): Certification of Reduced Vertical Separation Minimum (RVSM) Operational capability. · Textron Aviation Inc - [STC SA2202SO](https://openairdocs.org/stc/SA2202SO.md): Installation of environmental control system per Hangar One. · Textron Aviation Inc - [STC ST00383WI](https://openairdocs.org/stc/ST00383WI.md): Installation of the Rosemount Model0871CT1 Ice Detector System. · Textron Aviation Inc - [STC ST00780WI-D](https://openairdocs.org/stc/ST00780WI-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. · Textron Aviation Inc - [STC ST00781WI-D](https://openairdocs.org/stc/ST00781WI-D.md): Modification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I 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. · Textron Aviation Inc - [STC SA1903CE](https://openairdocs.org/stc/SA1903CE.md): Installation of Sperry EDZ-600 electronic flight instrument system (pilot's position). · Textron Aviation Inc - [STC SA1905CE](https://openairdocs.org/stc/SA1905CE.md): Relocation of No. 1 and No. 2 static inverters from nose to aft section of the airplane. · Textron Aviation Inc - [STC SA5539SW](https://openairdocs.org/stc/SA5539SW.md): Installation of equipment shelf in aft fuselage. · Textron Aviation Inc - [STC SA5564SW](https://openairdocs.org/stc/SA5564SW.md): Installation of Sundstrand Model AV557C cockpit voice recorder system. · Textron Aviation Inc - [STC SA5630SW](https://openairdocs.org/stc/SA5630SW.md): Installation of Lockheed Model 310 flight data recorder. · Textron Aviation Inc - [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 SA1902CE](https://openairdocs.org/stc/SA1902CE.md): Installation of Sperry Primus 800 weather radar system. · Textron Aviation Inc - [STC ST04238AT](https://openairdocs.org/stc/ST04238AT.md): Upgrade of Honeywell Traffic Collision Avoidance Systems II (TCAS II) Processor Software from TCAS II Version 7.0 to TCAS II Version 7.1 · Aviation Partners Group Inc - [STC SA3894NM](https://openairdocs.org/stc/SA3894NM.md): Installation of medical stretcher left or right side · Aviation Fabricators Inc - [STC ST00673WI-D](https://openairdocs.org/stc/ST00673WI-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 ST00682WI-D](https://openairdocs.org/stc/ST00682WI-D.md): Modification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I 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 in accordance with Collins Installation Instructions as listed on AML No. ST00682WI-D, Revision -, or later FAA approved revisions. · Rockwell Collins Inc - [STC ST09579SC](https://openairdocs.org/stc/ST09579SC.md): Installation of a Traffic Alert and Collision Avoidance System (TCAS) 2000. · Hawker Beechcraft Services Inc. - [STC ST09589SC](https://openairdocs.org/stc/ST09589SC.md): Installation of an AlliedSignal Enhanced Ground Proximity Warning System (EGPWS). · Hawker Beechcraft Services Inc. - [STC SA3646SW](https://openairdocs.org/stc/SA3646SW.md): Establish 264 KIAS Vmo at 8,000 feet or below and 264 KIAS linear variation to 320 KIAS at 11,000 feet. Install IDC P/N 37277-2139//3139 maximum allowable airspeed/ mach indicator. · Intercontinental Jet Service Corporation - [STC ST00562DE](https://openairdocs.org/stc/ST00562DE.md): Installation of a pilot's and co-pilot's digital air data display unit. · AeroMech Incorporated - [STC ST00091AT](https://openairdocs.org/stc/ST00091AT.md): Installation of an aircraft security system. · Raytheon Aircraft Services Inc Next page: https://openairdocs.org/aircraft/N2WC/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 m.matched_by, s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model FROM ( SELECT stc_number, min(side) AS side, arg_min(matched_by, side) AS matched_by, arg_min(matched_model, side) AS matched_model FROM (SELECT stc_number, 1 AS side, 'airframe' AS matched_by, matched_model FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet' WHERE aircraft_model_code = '5780602' UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52112') GROUP BY stc_number ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number) ORDER BY m.side, s.status = 'Current' DESC, s.status_date DESC, s.stc_number ``` This list as a web page: https://openairdocs.org/aircraft/N2WC/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.