# STCs that may be installed: N250EX

A list on [N250EX](https://openairdocs.org/aircraft/N250EX.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.

- [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 ST12283IB](https://openairdocs.org/stc/ST12283IB.md): Installation of Engine Vibration Indicator · Icarus Aero Inc.
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT.md): Installation of an Avionica, Inc. avCM Cellular Module · Aircraft Systems and Manufacturing Inc.
- [STC ST03292CH](https://openairdocs.org/stc/ST03292CH.md): Activation of an 802.11 a/b/g/n WiFi System · Elliott Aviation Technical Products Development, Inc.
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT.md): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII · Aircraft Systems and Manufacturing Inc.
- [STC ST02586AK](https://openairdocs.org/stc/ST02586AK.md): Approval of the Thomas Global Systems TFD-4000/4100 Active Matrix Liquid Crystal Display · ADS-B Technologies
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI.md): Installation of LED lights · AeroLED's Holdings LLC
- [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 ST04575AT](https://openairdocs.org/stc/ST04575AT.md): Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering · Chippewa Aerospace Inc.
- [STC ST04177AT](https://openairdocs.org/stc/ST04177AT.md): Installation of a Talon Aerospace LED Replacement General Purpose Lamps · Aaxico Technical Services Inc.
- [STC ST01270WI-D](https://openairdocs.org/stc/ST01270WI-D.md): Installation of Honeywell MK V and MK VII EGPWS Runway Awareness and Advisory System (RAAS). This approval is limited to specifically idenitfied aircraft. · Duncan Aviation Inc
- [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 SA01213CH](https://openairdocs.org/stc/SA01213CH.md): Install air ambulance conversion in accordance with Spectrum Aeromed Inc. Drawings as listed on AML SA01213CH, or later FAA approved revision. · Spectrum Aeromed LLC dba Spectrum Aeromed
- [STC ST04294NY](https://openairdocs.org/stc/ST04294NY.md): Replacement of certain Goodrich pneumatic de-icer boots · BE Aerospace Inc. DBA SMR Technologies Inc.
- [STC ST03262CH](https://openairdocs.org/stc/ST03262CH.md): Installation of a Data Link Communication System supporting Air Traffic Services (ATS) utilizing SATCOM with a compliant Communications Management Unit · Chicago Jet Group LLC
- [STC ST11071SC](https://openairdocs.org/stc/ST11071SC.md): Demonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs) · Liberty Partners Inc
- [STC ST00863DE](https://openairdocs.org/stc/ST00863DE.md): Installation of Automatic Dependent Surveillance-Broadcast (ADS-B) Out capability · West Star Aviation LLC
- [STC ST00861DE](https://openairdocs.org/stc/ST00861DE.md): Installation of a Dual Universal Flight Management Systems (FMS) including Localizer Performance with Vertical guidance (LPV) · West Star Aviation LLC
- [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 ST02978NY](https://openairdocs.org/stc/ST02978NY.md): Installation of ADS-B Out System · Trimec Aviation
- [STC ST00881WI-D](https://openairdocs.org/stc/ST00881WI-D.md): Modification of a TCAS II system installation to Change 7.0 or Change 7.1 · Rockwell Collins Inc
- [STC ST01474WI-D](https://openairdocs.org/stc/ST01474WI-D.md): Modication of a Rockwell Collins Weather Radar System installation. · Rockwell Collins Inc
- [STC ST01564WI-D](https://openairdocs.org/stc/ST01564WI-D.md): Modification of a Rockwell Collins, Inc. RAC-870 Radio Altimeter Converter installation. · Rockwell Collins Inc
- [STC ST02146NY](https://openairdocs.org/stc/ST02146NY.md): Installation of EMS Technologies Ltd. Cabin Network Xcelerator (CNX). · EMS Technologies Canada Ltd
- [STC ST02248NY](https://openairdocs.org/stc/ST02248NY.md): Installation of EMS HSD-64, HSD-128, HSD-HCM, and HSD-X · EMS Technologies Canada Ltd
- [STC ST01512LA-D](https://openairdocs.org/stc/ST01512LA-D.md): Installation of -218-218 software with Runway Awareness Advisory System (RAAS) activation option on Honeywell MK V Enhanced Ground Proximity Warning System (EGPWS). · Gulfstream Aerospace Corporation
- [STC ST03478AT](https://openairdocs.org/stc/ST03478AT.md): Installation of 965-0976-003-226-226 Software with Runway Awareness Advisory System (RAAS) activation option on Honeywell MK V Enhanced Ground Proximity Warning System (EGPWS) · Gulfstream Aerospace Corporation
- [STC ST10117SC](https://openairdocs.org/stc/ST10117SC.md): Installation of APX-100 integrated with existing Collins TCAS-94. Model Astra SPX (S/N 073, 079-145); Gulfstream 100 (S/N 146 & Subsequent). · Gulfstream Aerospace Corporation
- [STC ST10118SC](https://openairdocs.org/stc/ST10118SC.md): Installation of an antenna system for existing Collins ARC-210, Models Astra SPX (S/N 073, 079-145); Gulfstream 100 (S/N 146 & Subsequent). · Gulfstream Aerospace Corporation
- [STC ST02281CH](https://openairdocs.org/stc/ST02281CH.md): Installation of provision for CMC Electronics CMA-1100 PilotView Electronic Flight Bag system. · Pentastar Aviation LLC
- [STC ST02237CH-D](https://openairdocs.org/stc/ST02237CH-D.md): ONE-ONLY STC: Installation of a Corporate Aircraft Completion for model 100, serial number 158. · Gulfstream Aerospace Corporation
- [STC ST03154AT-D](https://openairdocs.org/stc/ST03154AT-D.md): Installation of Concorde Valve Regulated Lead-Acid Main Batteries. · Gulfstream Aerospace Corporation
- [STC ST10308SC-D](https://openairdocs.org/stc/ST10308SC-D.md): Installation of Dual Universal Avionics UNS-1C + Flight Management Systems. · Gulfstream Aerospace Corporation
- [STC ST02163CH-D](https://openairdocs.org/stc/ST02163CH-D.md): Installation of a Honeywell Mark VIII Enhanced Ground Proximity Warning System. · Garrett Aviation Services
- [STC ST02905AT-D](https://openairdocs.org/stc/ST02905AT-D.md): Installation of Collins Transponder Flight Identification System. · Gulfstream Aerospace Corporation
- [STC ST01307WI-D](https://openairdocs.org/stc/ST01307WI-D.md): Modification of a Collins TVI-920/TVI-920D Vertical Speed/TCAS Indicator installation · Rockwell Collins Inc
- [STC ST09837SC](https://openairdocs.org/stc/ST09837SC.md): Installation of Collins ADC-87 No. 2. · Gulfstream Aerospace Corporation
- [STC ST09847SC](https://openairdocs.org/stc/ST09847SC.md): Installation of an AlliedSignal digital flight data recorder (DFDR). · Gulfstream Aerospace Corporation
- [STC ST01830CH-D](https://openairdocs.org/stc/ST01830CH-D.md): Installation of a single Honeywell Laseref V Intertial Reference System interfaced to Collins ProLine 4 Avionics. · Gulfstream Aerospace Corporation
- [STC ST01824CH-D](https://openairdocs.org/stc/ST01824CH-D.md): Install Honeywell MK-V EGPWS with Windshear Warning and Terrain display on Collins Pro Line 4 EFIS W6365 Discovery Drive, Appleton, WI 54914-9190 · Gulfstream Aerospace corporation
- [STC ST09631SC](https://openairdocs.org/stc/ST09631SC.md): Installation of AlliedSignal Mark V Enhanced Ground Proximity Warning System (EGPWS). · Gulfstream Aerospace Corporation
- [STC ST09632SC](https://openairdocs.org/stc/ST09632SC.md): Installation of a Universal Avionics Thrane & Thrane TT-3000 Aero-M Satellite Communication (SATCOM) system. · Gulfstream Aerospace Corporation
- [STC ST09633SC](https://openairdocs.org/stc/ST09633SC.md): Installation of BFGoodrich Stormscope (WX-1000+) weather mapping system. · Gulfstream Aerospace Corporation
- [STC ST09634SC](https://openairdocs.org/stc/ST09634SC.md): Installation of a Universal Unilink UL-601. · Gulfstream Aerospace Corporation
- [STC SE00648CH](https://openairdocs.org/stc/SE00648CH.md): Convert AlliedSignal TFE731-3-1E/F/K engines to TFE731-3-2AP engines · International turbine Industries · Lists TFE731-3
- [STC SE1040EA](https://openairdocs.org/stc/SE1040EA.md): Installation of hydraulically actuated target type thrust reverser system. · Northrop Grumman Comm Aircraft Div · Lists TFE731-2

## 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 = '4500309'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '33902')
  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/N250EX/stcs

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