# STCs that may be installed: N53SD

A list on [N53SD](https://openairdocs.org/aircraft/N53SD.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 SR11256DS](https://openairdocs.org/stc/SR11256DS.md): Installation of 2nd GIA · Bell Textron Inc.
- [STC SR04842NY](https://openairdocs.org/stc/SR04842NY.md): Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS) · Sterling Helicopter
- [STC SR11896AC](https://openairdocs.org/stc/SR11896AC.md): Installation of EMS equipment sled and equipment mount provision · HELIFAB
- [STC SR11253DS](https://openairdocs.org/stc/SR11253DS.md): Installation of Auxiliary Fuel System · Bell Textron Inc.
- [STC SR00147IB](https://openairdocs.org/stc/SR00147IB.md): Installation of the Heli-Utility-Basket · Dart Aerospace
- [STC SR02774SE](https://openairdocs.org/stc/SR02774SE.md): Installation of a Supplemental Lighting System · Aviation Specialties Unlimited Inc.
- [STC SR04567AT](https://openairdocs.org/stc/SR04567AT.md): Installation of Crew and Cabin Floor Protectors · Helifab East LLC
- [STC SR02804LA](https://openairdocs.org/stc/SR02804LA.md): Installation of Airfilm Utility Mount · Airfilm Camera Systems
- [STC SR04522NY](https://openairdocs.org/stc/SR04522NY.md): Installation of an Accessory Fitting · AeroBrigham LLC
- [STC SR04691NY](https://openairdocs.org/stc/SR04691NY.md): Installation of the Cabin Floor Protection Kit · Alpine Aerotech LP
- [STC SR01961WI](https://openairdocs.org/stc/SR01961WI.md): Installation of a Garmin GFC 600H Flight Control System · Garmin International Inc
- [STC SR11249DS](https://openairdocs.org/stc/SR11249DS.md): Installation of Flitestep · Bell Helicopter Textron Inc.
- [STC SR11244DS](https://openairdocs.org/stc/SR11244DS.md): Installation of Expanded Instrument Panel · Bell Helicopter Textron Inc.
- [STC SR11246DS](https://openairdocs.org/stc/SR11246DS.md): Installation of Accessories Package · Bell Helicopter Textron Inc.
- [STC SR09758DS](https://openairdocs.org/stc/SR09758DS.md): Installation of an S-TEC HeliSAS Stability Augmentation System / Autopilot · S-TEC Corporation
- [STC SR11243DS](https://openairdocs.org/stc/SR11243DS.md): Installation of Expanded Avionics Shelf · Bell Helicopter Textron Inc.
- [STC SR04387NY](https://openairdocs.org/stc/SR04387NY.md): Installation of the Skidtubes · Dart Aerospace Ltd.
- [STC SR11242DS](https://openairdocs.org/stc/SR11242DS.md): Installation of Avionics Rain Shield · Bell Helicopter Textron Inc.
- [STC SR09899AC](https://openairdocs.org/stc/SR09899AC.md): Installation of Night Vision Goggle (NVG) Compatible Lighting System · Aero Dynamix Inc.
- [STC SR04355CH](https://openairdocs.org/stc/SR04355CH.md): Installation of Med-Pac 505 EMS-Lite RC505 Medical Unit · Med-Pac Inc.
- [STC SR11239DS](https://openairdocs.org/stc/SR11239DS.md): Installation of High Skid Landing Gear · Bell Helicopter Textron Inc.
- [STC SR11238DS](https://openairdocs.org/stc/SR11238DS.md): Installation of Nightscanner · Bell Helicopter Textron Inc.
- [STC SR09618RC](https://openairdocs.org/stc/SR09618RC.md): Installation of Headliner · Bell Helicopter Textron Inc.
- [STC SR11237DS](https://openairdocs.org/stc/SR11237DS.md): Installation of Tinted Windows · Bell Helicopter Textron Inc.
- [STC SR04158NY](https://openairdocs.org/stc/SR04158NY.md): Upgrade for Bell 505 VIP interiors P/N 685J0000X001001 · Mecaer Aviation Group S.p.A.
- [STC SR04133NY](https://openairdocs.org/stc/SR04133NY.md): Installation of Emergency Float System · Dart Aerospace Ltd.
- [STC SR04124NY](https://openairdocs.org/stc/SR04124NY.md): Installation of Bear Paw kits · Alpine Aerotech LP
- [STC SR04120NY](https://openairdocs.org/stc/SR04120NY.md): Installation of the Bearpaws · Dart Aerospace Ltd.
- [STC SR09616RC](https://openairdocs.org/stc/SR09616RC.md): Installation of Floor Protectors · Bell Helicopter Textron Inc.
- [STC SR09615RC](https://openairdocs.org/stc/SR09615RC.md): Installation of Cargo Mirror Kit · Bell Helicopter Textron Inc.
- [STC SR09612RC](https://openairdocs.org/stc/SR09612RC.md): Installation of a Cowling Access Door Kit · Bell Helicopter Textron Inc.
- [STC SR09613RC](https://openairdocs.org/stc/SR09613RC.md): Installation of an Automatic Door Opener Kit · Bell Helicopter Textron Inc.

## 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 = '1182166'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '59992')
  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/N53SD/stcs

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