# STCs that may be installed: N425GS

A list on [N425GS](https://openairdocs.org/aircraft/N425GS.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 4 · 157 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 ST01984WI](https://openairdocs.org/stc/ST01984WI.md): Installation of Stores Carriage Provisions and Underwing Stores · Avcon Industries Inc.
- [STC ST00892LA](https://openairdocs.org/stc/ST00892LA.md): Installation of Emergency Vision Assurance System (EVAS). · VisionSafe LLC
- [STC ST04614CH](https://openairdocs.org/stc/ST04614CH.md): Installation of a SmartSky LITE System · Apcela IFC JV, LLC dba Apcela ATG
- [STC ST11216DS](https://openairdocs.org/stc/ST11216DS.md): Installation of automatic dependent surveillance-broadcast (ADS-B) out on Part 25 aircraft · BHE & Associates Ltd.
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT.md): Installation of an Avionica, Inc. avCM Cellular Module · Aircraft Systems and Manufacturing Inc.
- [STC ST12087CH](https://openairdocs.org/stc/ST12087CH.md): Installation replacement Cabin/Cockpit Handheld Fire Extinguishers · Avcon Industries 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 ST01117DE](https://openairdocs.org/stc/ST01117DE.md): Installation of the Gogo ATG C1. · Peregrine
- [STC ST04743NY](https://openairdocs.org/stc/ST04743NY.md): Installation of ATI Oil Safety Cap · ATI Jet Inc.
- [STC ST01833WI](https://openairdocs.org/stc/ST01833WI.md): Modification of a Rockwell Collins Global Positioning System (GPS) installation · Rockwell Collins Inc.
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI.md): Installation of LED lights · AeroLED's Holdings LLC
- [STC ST01138DE](https://openairdocs.org/stc/ST01138DE.md): Installation of MidContinent MD23 standby altimeter and/or attitude indicators · Butler National Corporation
- [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 ST02209AT-D](https://openairdocs.org/stc/ST02209AT-D.md): Installation of Composite Stang Fairings. · Summit Aviation Inc
- [STC ST03996AT](https://openairdocs.org/stc/ST03996AT.md): Installation of a GDC64Tablet Aircraft Interface Unit (TAIU) in the Learjet Model 60 airplane · Summit Aviation Inc.
- [STC ST01070DE](https://openairdocs.org/stc/ST01070DE.md): Installation of the Curtiss-Wright Fortress Flight Data Recorder (with Cockpit Voice Recorder) · Peregrine
- [STC ST00098IB](https://openairdocs.org/stc/ST00098IB.md): Introduction of ADS-B Out · STC Twenty One Limited
- [STC ST01985WI](https://openairdocs.org/stc/ST01985WI.md): Installation of the Garmin GI-275 I Electronic Standby Instrument (ESI) · Peregrine
- [STC ST01742WI](https://openairdocs.org/stc/ST01742WI.md): Satcom Direct Router (SDR) Installation and Activation of WI-FI and Transmitting Portable Electronic Devices (T-PED), including Aircraft Tolerance Testing · Delta Engineering Corporation
- [STC ST11285DS](https://openairdocs.org/stc/ST11285DS.md): An update to the existing Collins Aerospace Integrated Flight Information System (IFIS) FSU-5010 and upgrade the existing XMWR-1000 to a XMWR-1000S (Sirius XM) in Part 25. · BHE & Associates Ltd.
- [STC ST04208NY](https://openairdocs.org/stc/ST04208NY.md): Installation of LAI Windowshields · Lee 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 ST02635LA](https://openairdocs.org/stc/ST02635LA.md): Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out · Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC SA01452CH](https://openairdocs.org/stc/SA01452CH.md): Installation of an air ambulance conversion kit. · Med-Pac Inc.
- [STC ST02455SE](https://openairdocs.org/stc/ST02455SE.md): Installation of Dual GTX-3000 Transponders, GDL-88 Automatic Dependent Surveillance-Broadcast (ADS-B) (In) with Wide Area Augmentation System (WAAS) Global Positioning System (GPS) sensor and Flight Stream 210 Bluetooth Connectivity installed for ADS-B (Out) compliance · Butler National Corporation
- [STC ST01905LA](https://openairdocs.org/stc/ST01905LA.md): Installation of a Patient Loading and Utility System · 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 SA4999NM](https://openairdocs.org/stc/SA4999NM.md): Installation of lifeport patient loading and support system. · LifePort LLC
- [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 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 ST00373BO](https://openairdocs.org/stc/ST00373BO.md): Installation of Rockwell Collins TDR-94D Transponders with ADS-B Out · Pro Star Aviation, LLC
- [STC ST00820DE](https://openairdocs.org/stc/ST00820DE.md): Installation of a Datalink Communications System supporting Air Traffic Services (ATS) using a Universal Unilink UL-801 Communications Management Unit (CMU) · West Star Aviation 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 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 ST01794WI](https://openairdocs.org/stc/ST01794WI.md): Modification of Rockwell Collins TCAS II System Installation · Rockwell Collins Inc
- [STC ST02500SE](https://openairdocs.org/stc/ST02500SE.md): The installation of the Garmin GDL-88 with the Flight Stream 210 to allow ADS-B(In) Flight Information Service Broadcast (FIS-B), independent of the ADS-B(Out) solution compliance. · Butler National Corporation
- [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 ST01795WI](https://openairdocs.org/stc/ST01795WI.md): Installation of an ADS-B Out TDR-94D Transponder · Learjet Inc
- [STC SA8105NM-D](https://openairdocs.org/stc/SA8105NM-D.md): Installation of dual universal UNS-1C flight management system. · Learjet Inc.
- [STC SA8106NM-D](https://openairdocs.org/stc/SA8106NM-D.md): Installation of Universal Avionics UL-600/UL-601 Unilink System · Learjet Inc.
- [STC ST01596LA-D](https://openairdocs.org/stc/ST01596LA-D.md): Software Upgrade to the Honeywell Mark V Enhanced Ground Proximity Warning System (EGPWS) for the Runway Awareness and Advisory System (RAAS). · Learjet Inc.
- [STC ST02022LA-D](https://openairdocs.org/stc/ST02022LA-D.md): Installation of an AirCell Axxess II Satcom System. · Learjet 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 ST04233AT](https://openairdocs.org/stc/ST04233AT.md): Replacement of the inner aluminum barrel of the engine inlet cowl, with an inlet barrel of carbon graphite sandwich construction, to provide a solution for in-service corrosion · Quiet Technology Aerospace
- [STC ST01791WI](https://openairdocs.org/stc/ST01791WI.md): Installation of a Collins AHC-3000A Series Attitude Heading Computer · Butler Avionics, Inc

Next page: https://openairdocs.org/aircraft/N425GS/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 = '5170707'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52190')
  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/N425GS/stcs

---
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