# STCs that may be installed: N80NH

A list on [N80NH](https://openairdocs.org/aircraft/N80NH.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 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 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 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 SR00713SE](https://openairdocs.org/stc/SR00713SE.md): Installation of Onboard Systems International Cargo Hook Kit · Onboard Systems International
- [STC SH5707NM](https://openairdocs.org/stc/SH5707NM.md): Fabrication of Onboard Systems Model 200-088-03 or 200-088-04 (without Load Weight) or 200-089-03, -04, -05 or -06 (with Load Weight) cargo hook suspension systems · Onboard Systems International
- [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 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 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

## 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 = '9640002'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41557')
  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/N80NH/stcs

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