# STCs that may be installed: N254DM

A list on [N254DM](https://openairdocs.org/aircraft/N254DM.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 · 78 STCs

- [STC SR09502RC](https://openairdocs.org/stc/SR09502RC.md): Installation of Air Methods Corporation Emergency Medical System and Avionics Package · Air Methods LLC
- [STC SR04464NY](https://openairdocs.org/stc/SR04464NY.md): Installation of the iPad Mount · Avio Design Group Inc.
- [STC SR02301SE](https://openairdocs.org/stc/SR02301SE.md): Installation of Geneva Aviation 28 - 14 VDC Power Converter · AEM USA Inc.
- [STC SR02445SE](https://openairdocs.org/stc/SR02445SE.md): Installation of P178 Failsafe Audio Mixer · AEM USA Inc.
- [STC SR03029NY](https://openairdocs.org/stc/SR03029NY.md): The installation of a SkyTrac ISAT-200 Airborne Position/Data Communicator upgrade · SkyTrac Systems Ltd.
- [STC SR12092IB](https://openairdocs.org/stc/SR12092IB.md): Manufacturing and Installation of Cargo Hold Nets · ICARUS AERO INC.
- [STC SR11944WI](https://openairdocs.org/stc/SR11944WI.md): Installation of a Garmin GFC 600H Helicopter Flight Control System · Garmin International Inc.
- [STC SR00115IB](https://openairdocs.org/stc/SR00115IB.md): Installation of the Advanced Lithium Ion Battery Replacement of Ni-Cad Battery · Vertical Flight Solutions Inc.
- [STC SR04711NY](https://openairdocs.org/stc/SR04711NY.md): Replacement of Luminator LS400 LED searchlight (steerable landing light) · Sterling Helicopter
- [STC SR04641CH](https://openairdocs.org/stc/SR04641CH.md): Installation of a Helitak FT1400 Liquid Dispensing System · U.S. Technical Consultants Inc.
- [STC SR11839IB](https://openairdocs.org/stc/SR11839IB.md): Manufacture and Installation of Seat Refurbishment · Icarus Aero Inc.
- [STC SR00216IB](https://openairdocs.org/stc/SR00216IB.md): Installation and Configuration of the Standard Interior Modification · Airbus Helicopters Canada Limited
- [STC SR04610NY](https://openairdocs.org/stc/SR04610NY.md): Installation of Outerlink IRIS SATCOM, Flight Data Monitoring and Tracking System · Outerlink Corporation
- [STC SR09909AC](https://openairdocs.org/stc/SR09909AC.md): Installation of Emergency Medical Service (EMS) Interior · Kilroy Aviation LLC
- [STC SR00182IB](https://openairdocs.org/stc/SR00182IB.md): Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s) · Horizon Design Services Ltd.
- [STC SR02345LA](https://openairdocs.org/stc/SR02345LA.md): Installation of HeliSAS stability augmentation system and autopilot · S-TEC Corporation
- [STC SR04637CH](https://openairdocs.org/stc/SR04637CH.md): Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel · Airwolf Aerospace LLC
- [STC SR00154IB](https://openairdocs.org/stc/SR00154IB.md): Installation of Quick Removal System · SAFRAN AEROSYSTEMS
- [STC SR02120SE](https://openairdocs.org/stc/SR02120SE.md): Installation of Garmin GTN 6XX/7XX Navigation System · Garmin International Inc.
- [STC SR04535NY](https://openairdocs.org/stc/SR04535NY.md): Installation of the Astronics (Max-Viz) 1200 or 1400 EVS · Avio Design Group Inc
- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM.md): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system, · Precise Flight Inc
- [STC SR04557NY](https://openairdocs.org/stc/SR04557NY.md): Installation of the Fuel Cap Replacement · Avio Design Group Inc
- [STC SR00059IB](https://openairdocs.org/stc/SR00059IB.md): Installation of Garmin GRA Radar Altimeter System · Maxcraft Avionics Ltd.
- [STC SR03512AT](https://openairdocs.org/stc/SR03512AT.md): Installation of HID Landing and Taxi Lights · Whelen Aerospace Technologies
- [STC SR02073LA](https://openairdocs.org/stc/SR02073LA.md): Installation of Concorde RG350 Sealed Lead Acid Battery. · Rotorcraft Support Inc
- [STC SR09500RC-D](https://openairdocs.org/stc/SR09500RC-D.md): Installation of L-3 Trilogy ESI-2000 or ESI-500 Electronic Standby Indicator · Airbus Helicopters Inc.
- [STC SR03640AT](https://openairdocs.org/stc/SR03640AT.md): Installation of miscellaneous windows · Tech-Tool Plastics Inc
- [STC SR04644NY](https://openairdocs.org/stc/SR04644NY.md): Installation of Airframe-Mounted Fuel Filter · Airbus Helicopters Canada Limited
- [STC SR04590NY](https://openairdocs.org/stc/SR04590NY.md): Heavy-Duty Battery Installation must be in accordance with Airbus Helicopters Master Drawing List MDL-17-002, Revision A, Transport Canada Civil Aviation (TCCA) approved December 16, 2019, or later TCCA approved revision. · Airbus Helicopters Canada Limited
- [STC SR04583NY](https://openairdocs.org/stc/SR04583NY.md): Installation of the COVID Barrier · Avio Design Group Inc
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE.md): Installation and maintenance of the Sunspot 36 and 46 series lights · AeroLED's Holdings LLC
- [STC SR01052DE](https://openairdocs.org/stc/SR01052DE.md): Installation of Non-Aviation Band FM Radio Systems · Cert Works LLC
- [STC SR02622SE](https://openairdocs.org/stc/SR02622SE.md): Installation of Garmin G500H TXi Display System (Primary Flight Display (PDF), Multi-Function Display (MFD)) · Garmin International Inc
- [STC SR11198DS](https://openairdocs.org/stc/SR11198DS.md): Installation of Garmin Optional Features · Airbus Helicopters Inc.
- [STC SR09511DS](https://openairdocs.org/stc/SR09511DS.md): Installation of LED Taxi and Landing Lights with Optional Pulse · Airbus Helicopters Inc.
- [STC SR04453CH](https://openairdocs.org/stc/SR04453CH.md): Installation of Appareo Systems LLC Stratus ES & Stratus ESG ADS-B transponder · Appareo Systems LLC
- [STC SR02124SE](https://openairdocs.org/stc/SR02124SE.md): Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality; · Garmin International Inc
- [STC SR02560CH](https://openairdocs.org/stc/SR02560CH.md): Installation of Inlet Barrier Filter system · Donaldson Company Inc.
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO.md): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · Whelen Aerospace Technologies
- [STC SR04169CH](https://openairdocs.org/stc/SR04169CH.md): Installation of a Medical Interior · LifePort LLC
- [STC SR00871DE](https://openairdocs.org/stc/SR00871DE.md): Installation of Garmin GTS 800 Traffic Avoidance System (TAS) · Cert Works LLC
- [STC SR04327NY](https://openairdocs.org/stc/SR04327NY.md): Installation of the Emergency Float System · Dart Aerospace Ltd.
- [STC SR04320NY](https://openairdocs.org/stc/SR04320NY.md): Installation of the Landing Gear kit · Dart Aerospace Ltd.
- [STC SR04318NY](https://openairdocs.org/stc/SR04318NY.md): Installation of the Advance Lithium Ion Battery to replace the Ni-Cad Battery · Vertical Flight Solutions Inc
- [STC SR11192DS](https://openairdocs.org/stc/SR11192DS.md): Installation of a Baggage Compartment Floor Protector · Airbus Helicopters Inc.
- [STC SR04297NY](https://openairdocs.org/stc/SR04297NY.md): Installation of the Alternate Standby Altimeter · Airbus Helicopters Canada Limited
- [STC SR00821DE](https://openairdocs.org/stc/SR00821DE.md): Installation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and in functionality using the BendixKing KT74 Transponder and qualified position sensor and ADS-B In Receiver · Peregrine
- [STC SR00828DE](https://openairdocs.org/stc/SR00828DE.md): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the Garmin G330ES or G33H ES Transponder and qualified position sensor · Peregrine
- [STC SR02609SE](https://openairdocs.org/stc/SR02609SE.md): Installation of Cable Cutters · Dart Aerospace USA Inc.
- [STC SR03077NY](https://openairdocs.org/stc/SR03077NY.md): Installation of a HELICOM V2 NUM System or HELICOM V2+ NUM System for tracking a set of flight and system parameters during operation of the rotorcraft. · International Services Electronique Informatique

Next page: https://openairdocs.org/aircraft/N254DM/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 = '1145302'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '60080')
  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/N254DM/stcs

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