# STCs approved under this data sheet: TCDS H4SW A list on [TCDS H4SW](https://openairdocs.org/tcds/H4SW.md). Current certificates first, most recently changed first. Page 1 of 11 · 522 STCs - [STC SR12508IB](https://openairdocs.org/stc/SR12508IB.md): Installation of Personnel Carrying Devices (PCDs) for Human External Cargo (HEC) · Ascent Aerospace Ltd. - [STC SR01928NY](https://openairdocs.org/stc/SR01928NY.md): Installation of emergency float system · Leonardo Helicopters US Corporation - [STC SR12427IB](https://openairdocs.org/stc/SR12427IB.md): Installation of an AEM MTP136D Panel Mount FM Transceiver · Anodyne Electronics Manufacturing Corporation - [STC SR02736NY](https://openairdocs.org/stc/SR02736NY.md): Installation of Utility Basket on the right hand side · Alpine Aerotech Ltd - [STC SR02270SE](https://openairdocs.org/stc/SR02270SE.md): Fabrication and installation of Geneva Aviation Audio System · AEM USA Inc. - [STC SR02444SE](https://openairdocs.org/stc/SR02444SE.md): Installation of P178 Failsafe Audio Mixer · AEM USA Inc. - [STC SR12332SE](https://openairdocs.org/stc/SR12332SE.md): Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System · Mechanical Specialties, LLC - [STC SH3261SO](https://openairdocs.org/stc/SH3261SO.md): Installation of replacement skid tubes. · Bell Helicopter Textron Inc. - [STC SR12148LA](https://openairdocs.org/stc/SR12148LA.md): Installation of modified configurations of the Bell Helicopter Textron (BHT) Model 412 “Arm and Bearing Assembly” · Extex Engineered Products - [STC SR04465NY](https://openairdocs.org/stc/SR04465NY.md): Installation of the iPad Mount · Avio Design Group Inc - [STC SR00258DE](https://openairdocs.org/stc/SR00258DE.md): Installation of an articulating patient loading system. · Air Methods LLC - [STC SR09922AC](https://openairdocs.org/stc/SR09922AC.md): Installation of a Foresight MX Condition Monitoring System · GPMS International Inc. - [STC SR12068IB](https://openairdocs.org/stc/SR12068IB.md): Installation of the AFI4700 Electronic Flight Instrument · Alpine Aerotech LP - [STC SR12072IB](https://openairdocs.org/stc/SR12072IB.md): Manufacturing and Installation of Cargo Hold Nets; Maintenance must be in accordance with ICARUS Aero Inc. Instructions for Continued Airworthiness as shown on the attached FAA AML No. SR12072IB. · Icarus Aero Inc. - [STC SR00256DE](https://openairdocs.org/stc/SR00256DE.md): Installation of a medical oxygen system. MSN 36128 only · Air Methods LLC - [STC SR11922AC](https://openairdocs.org/stc/SR11922AC.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 SH8610SW](https://openairdocs.org/stc/SH8610SW.md): Fabrication of Isolair Eliminator II Model 4600-212/412 Fire Fighting System · Isolair Inc. - [STC SR02590AK](https://openairdocs.org/stc/SR02590AK.md): Installation of Bell Lightweight Tailboom Modification · StandardAero Atlantic USA Inc. - [STC SR00032DE-D](https://openairdocs.org/stc/SR00032DE-D.md): Installation of an Air Methods Corporation Emergency Medical System Interior that provides (3) three patient locations to be configured one of two ways using an Intensive Care Transport Litter (ICTL) and Ferno stretchers · Air Methods LLC - [STC SR00107DE-D](https://openairdocs.org/stc/SR00107DE-D.md): Installation of an Air Methods, LLC, Emergency Medical System interior · Air Methods LLC - [STC SR00113DE-D](https://openairdocs.org/stc/SR00113DE-D.md): lnstallation of an Air Methods, LLC, Emergency Medical System interior · Air Methods LLC - [STC SR00118DE-D](https://openairdocs.org/stc/SR00118DE-D.md): Installation of a standby attitude indicator battery annunciator system. · Air Methods LLC - [STC SR00855DE](https://openairdocs.org/stc/SR00855DE.md): Installation of Tracking Patient Loading System · Air Methods LLC - [STC SR04132CH](https://openairdocs.org/stc/SR04132CH.md): Installation of Heli-Preheat Kit, p/n TA3132-1 for 115 volt application in accordance with Heli-Preheat Kit drawing TA3132-1 Revision G, dated December 11, 2023 or later FAA approved revisions and Preheat Kit Installation Instruction TNH3132 Revision C, dated November 7, 2023 or later FAA approved revisions. · HARTZELL PROPELLER LLC - [STC SH1253SO](https://openairdocs.org/stc/SH1253SO.md): Installation of a wire strike protection system. · Magellan Aerospace - [STC SR01779LA](https://openairdocs.org/stc/SR01779LA.md): Installation of the Emergency Float Kits · Dart Aerospace ULC - [STC SH1415SO](https://openairdocs.org/stc/SH1415SO.md): Installation of Wire Strike Protection system; Configuration #1 - Installation P/N 364-83300-5 (Standard Skid Gear) or P/N 364-83300-7 (High Skid Gear) · Magellan Aerospace - [STC SR00169IB](https://openairdocs.org/stc/SR00169IB.md): Installation of the Garmin G500H TXi Flight Display System · Eagle Copters Maintenance Ltd. - [STC SH3894SW](https://openairdocs.org/stc/SH3894SW.md): Installation of 9-place forward facing airline seats. · Bell Textron Inc. - [STC SR09343RC](https://openairdocs.org/stc/SR09343RC.md): Installation of Aero Seats and Systems, Inc., Life Raft Deployment System (LRDS) · Bell Textron Inc. - [STC SR09453RC](https://openairdocs.org/stc/SR09453RC.md): Installation of cabin seats · Bell Textron Inc. - [STC SR00145IB](https://openairdocs.org/stc/SR00145IB.md): Installation of LH and RH Vertical Reference Door(s) · Transwest Helicopters Ltd. - [STC SR00142IB](https://openairdocs.org/stc/SR00142IB.md): Installation of the Integrated Health and Usage Monitoring System (HUMS) · RMCI Canada Inc. - [STC SR00141IB](https://openairdocs.org/stc/SR00141IB.md): Installation of the Aft Pedestal Stowage Compartment · Alpine Aerotech LP - [STC SH4056NM](https://openairdocs.org/stc/SH4056NM.md): Installation of pneumatic door actuators. · Dart Aerospace USA Inc. - [STC SR00131IB](https://openairdocs.org/stc/SR00131IB.md): Installation of an Artex Emergency Locator Transmitter (ELT) 4000 HM System · Eagle Copters Maintenance Ltd. - [STC SR11252DS](https://openairdocs.org/stc/SR11252DS.md): Installation of additional Hoist Cable Cut Switches · Bell Textron Inc. - [STC SR01865SE](https://openairdocs.org/stc/SR01865SE.md): Fabrication and installation of FastFin System · BLR Aerospace LLC. - [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 SR00871LA](https://openairdocs.org/stc/SR00871LA.md): Installation of the Modular Seating System · LifePort LLC - [STC SR00094IB](https://openairdocs.org/stc/SR00094IB.md): Installation of Extended Port Seat Rail · Ascent Aerospace Ltd. - [STC SR00080IB](https://openairdocs.org/stc/SR00080IB.md): Installation of the Garmin GRA 55 Radar Altimeter · Alpine Aerotech LP - [STC SR00077IB](https://openairdocs.org/stc/SR00077IB.md): Installation of the Two Place Seat Assembly · Ascent Aerospace Ltd. - [STC SR00075IB](https://openairdocs.org/stc/SR00075IB.md): Installation of Cabin Furnishings · Ascent Aerospace Ltd. - [STC SH400NW](https://openairdocs.org/stc/SH400NW.md): Installation of left hand bubble door with or without duplicate engine instruments · WSH, LLC - [STC SR03832NY](https://openairdocs.org/stc/SR03832NY.md): Installation of Full Vertical Reference Door P/N D412-761 for Left Hand Vertical Reference Operations · Dart Aerospace Limited - [STC SH1543GL](https://openairdocs.org/stc/SH1543GL.md): Remove skid landing gear replacing same with a fixed (non-retracting), wheeled, tricycle landing gear. · Kaman Corporation Aircraft Wheel and Brake LLC - [STC SH1651GL](https://openairdocs.org/stc/SH1651GL.md): Remove skid landing gear replacing same with a fixed (non-retracting), wheeled, tricycle landing gear. · Kaman Corporation Aircraft Wheel and Brake LLC - [STC SR04782NY](https://openairdocs.org/stc/SR04782NY.md): Installation of PCDs and HEC System · Ascent Aerospace Ltd. - [STC SR00058IB](https://openairdocs.org/stc/SR00058IB.md): Installation of J301A Audio Controller · Alpine Aerotech LP Next page: https://openairdocs.org/tcds/H4SW/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 = 'H4SW') ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number ``` This list as a web page: https://openairdocs.org/tcds/H4SW/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.