# STCs approved under this data sheet: TCDS H7SO

A list on [TCDS H7SO](https://openairdocs.org/tcds/H7SO.md).

Current certificates first, most recently changed first.

- [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 SR02796SE](https://openairdocs.org/stc/SR02796SE.md): Installation of Human External Cargo (HEC) system · Boost Systems LLC
- [STC SR00266SE](https://openairdocs.org/stc/SR00266SE.md): Replacement of the Lycoming Model T53-L-13B engine with a Lycoming Model T53-L-703 engine flat rated to the same power settings specified in Type Certificate Data Sheet (TCDS) H15NM · Overseas Aircraft Support Inc.
- [STC SH8609SW](https://openairdocs.org/stc/SH8609SW.md): Fabrication of Isolair Eliminator II Model 4600-205 fire fighting system. · Isolair Inc.
- [STC SR01776SE](https://openairdocs.org/stc/SR01776SE.md): Fabrication, installation, and maintenance of the Isolair Helicopters, Inc., Model 9002 High Cross tubes · Isolair Inc.
- [STC SH3744NM](https://openairdocs.org/stc/SH3744NM.md): Dual Battery Installation · WSH, LLC
- [STC SR00026DE](https://openairdocs.org/stc/SR00026DE.md): Installation of tailboom 24 inch plug extension, commercial style main rotor blades, and rotorhead. · Midwest Aerospace TC LLC
- [STC SR00073DE](https://openairdocs.org/stc/SR00073DE.md): Replacement of Lycoming T53-L-13 series powerplant · Midwest Aerospace TC LLC
- [STC SR00119DE](https://openairdocs.org/stc/SR00119DE.md): Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables · Midwest Aerospace TC LLC
- [STC SR00143DE](https://openairdocs.org/stc/SR00143DE.md): Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003 · Midwest Aerospace TC LLC
- [STC SR09177RC](https://openairdocs.org/stc/SR09177RC.md): Modification of the vertical fin spar · Midwest Aerospace TC LLC
- [STC SR02761LA](https://openairdocs.org/stc/SR02761LA.md): Installation of UH-1H composite main rotor blades on the UH-1B helicopters · Northern X-Treme Helicopters
- [STC SR00713SE](https://openairdocs.org/stc/SR00713SE.md): Installation of Onboard Systems International Cargo Hook Kit · Onboard Systems International
- [STC SH5690NM](https://openairdocs.org/stc/SH5690NM.md): Installation of Advanced Technology Aircraft Co. engine barrier filter. · WSH, LLC
- [STC SR02475SE](https://openairdocs.org/stc/SR02475SE.md): Installation of a Tailboom Motion Detection System · Aircraft Structural Repair Inc.
- [STC SR02492LA](https://openairdocs.org/stc/SR02492LA.md): Installation of a Helicopter Technology Company main rotor blade assembly · Helicopter Technology Co
- [STC SR02641SE](https://openairdocs.org/stc/SR02641SE.md): Installation of a Service Deck · Northwest Heli-Structures Inc
- [STC SR02070SE](https://openairdocs.org/stc/SR02070SE.md): Fabrication of Dart D205-770-011 Replacement Engine Mount Kit · Dart Aerospace USA Inc.
- [STC SR00929SE](https://openairdocs.org/stc/SR00929SE.md): Fabrication of tail boom mounted strakes. · BLR Aerospace LLC.
- [STC SR01039SE](https://openairdocs.org/stc/SR01039SE.md): Fabrication of tail boom mounted strakes in accordance with Master Drawing List Number BL-UH1H-01, Revision D, dated September 10, 2001, or later Federal Aviation Administration (FAA)-approved revision; and installation of this strake system · BLR Aerospace LLC.
- [STC SR01470SE](https://openairdocs.org/stc/SR01470SE.md): Fabrication and Installation of Fast Fin System. · BLR Aerospace LLC.
- [STC SR03408CH](https://openairdocs.org/stc/SR03408CH.md): Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103 · Airwolf Aerospace LLC
- [STC SR02413LA](https://openairdocs.org/stc/SR02413LA.md): Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000 · AKV Inc.
- [STC ST04270AT](https://openairdocs.org/stc/ST04270AT.md): Install the VTOL ASSALT V3 Windscreen Laminate Kit · VTOL LLC
- [STC SR00767SE](https://openairdocs.org/stc/SR00767SE.md): Fabrication of Helipro spar replacement system · Vector Aerospace Helicopter Services USA Inc.
- [STC SR00267SE](https://openairdocs.org/stc/SR00267SE.md): Fabrication and Installation of a Bell Model 212 vertical tail fin and rotor, 42 and 90 gearboxes, and 212 push rod anti-torque control system · Vector Aerospace Helicopter Services USA Inc.
- [STC SR01742NY](https://openairdocs.org/stc/SR01742NY.md): Installation of extended height landing gear. · Dart Aerospace Limited
- [STC SR01196LA](https://openairdocs.org/stc/SR01196LA.md): Installation of Honeywell (Lycoming) T53-L-703 engine to replace Honeywell (Lycoming) T53-L-13/13B/-13BA engine. Responsible ACO is Los Angeles, NM-L. · Minuteman Aviation Inc.
- [STC SR02051LA](https://openairdocs.org/stc/SR02051LA.md): Installation of a VAn Horn Aviation Tail Rotor Blade. · Van Horn Aviation LLC
- [STC SR01946SE](https://openairdocs.org/stc/SR01946SE.md): Installation of the Mechanical Specialties, Model UH606 · Mechanical Specialties Inc
- [STC SR09257RC](https://openairdocs.org/stc/SR09257RC.md): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-800, Revision D, dated March 26, 2001, or later FAA approved revision. · Global Spar LLC
- [STC SR09316RC](https://openairdocs.org/stc/SR09316RC.md): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-801, Revision B, dated April 5, 2001, or later FAA approved revision. · Global Spar LLC
- [STC SR02204LA](https://openairdocs.org/stc/SR02204LA.md): Installation of an AKV, INC. N1/N2 Cycle Counter, PN UH1T53CC · AKV Inc.
- [STC SR00103SE](https://openairdocs.org/stc/SR00103SE.md): Installation of Aviation Development Corporation oil filter · Aviation Development Corporation
- [STC SR01298NY](https://openairdocs.org/stc/SR01298NY.md): Installation of replacement crosstubes P/N D212-664. · Dart Aerospace Limited
- [STC SR00563NY](https://openairdocs.org/stc/SR00563NY.md): Installation of Skidtubes and associated saddles · Dart Aerospace Limited
- [STC SR00332NY](https://openairdocs.org/stc/SR00332NY.md): Installation of Avionics Specialties power analyzer and recorder no. SL17009 and SL17061. · Aerosonic Corporation
- [STC SR01395NY](https://openairdocs.org/stc/SR01395NY.md): Installation of adjustable engine mount. · Dart Aerospace Limited

## 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 = 'H7SO')
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/tcds/H7SO/stcs

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