# STCs that may be installed: N174DB

A list on [N174DB](https://openairdocs.org/aircraft/N174DB.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 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 SR02704SE](https://openairdocs.org/stc/SR02704SE.md): Installation and maintenance of the Sunspot 36 and 46 series lights · AeroLED's Holdings LLC
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO.md): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · Whelen Aerospace Technologies
- [STC SH4672SW](https://openairdocs.org/stc/SH4672SW.md): Installation of P3180-9/10 upper sliding window assembly and -11/-12 lower sliding window assembly in the passenger door. · The NORDAM Group LLC
- [STC SR02394AK](https://openairdocs.org/stc/SR02394AK.md): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system · Seaplanes North LLC
- [STC SR00811NY](https://openairdocs.org/stc/SR00811NY.md): Installation of Technisonic Industries Limited TFM-138 series transceiver models. · Technisonic Industries Limited
- [STC SR01834NY](https://openairdocs.org/stc/SR01834NY.md): Installation of Globalstar Satellite Telephone System. · Atlantic Avionics Inc.
- [STC SH1913SW-D](https://openairdocs.org/stc/SH1913SW-D.md): Installation of external cargo carrier. · American Eurocopter Corporation
- [STC SH4266SW-D](https://openairdocs.org/stc/SH4266SW-D.md): Alternate parts for installation of Modification AMS 2195. · American Eurocopter Corporation
- [STC SH1913SW](https://openairdocs.org/stc/SH1913SW.md): Installation of external cargo carrier. · American Eurocopter Corporation
- [STC SR09001RC](https://openairdocs.org/stc/SR09001RC.md): Installation of Eurocopter window. · Tech-Tool Plastics Inc
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM.md): Installation of Electronics Int'l digital automatic engine analyzer. · Electronics International
- [STC SH155WE](https://openairdocs.org/stc/SH155WE.md): Installation of battery temperature monitor system. · K S Avionics, Inc
- [STC SH1870SW](https://openairdocs.org/stc/SH1870SW.md): Install 315A-22-11-200 protection assembly for tail drive shaft. · Thales Avionics, Inc.
- [STC SH1-175](https://openairdocs.org/stc/SH1-175.md): American type rate of climb, altimeter, air speed and outside air temperature indicators. · Republic Aviaiton Corp
- [STC SH1-253](https://openairdocs.org/stc/SH1-253.md): Goodyear floats and United States hardware. · Republic Aviaiton Corp
- [STC SH1-315](https://openairdocs.org/stc/SH1-315.md): Modification of rotor swash plate. · Republic Aviaiton Corp
- [STC SH1-461](https://openairdocs.org/stc/SH1-461.md): Engine air inlet duct screens. · Republic Aviaiton Corp
- [STC SH1-475](https://openairdocs.org/stc/SH1-475.md): Purolator fuel filter element type EP-173 P/N 6656561 and gasket 6656574. · Republic Aviaiton Corp
- [STC SH1-504](https://openairdocs.org/stc/SH1-504.md): Cabin heating system utilizing Stewart-Warner 940F24 heater. · Republic Aviaiton Corp
- [STC SH1-527](https://openairdocs.org/stc/SH1-527.md): Transmission gears in transmission box assembly SE 3130 62-30-00; 81P740009 first stage sun gear, one; 81P740006 second stage sun gear, one; 81P740007 satellite gear, twelve. · Republic Aviaiton Corp
- [STC SH1-563](https://openairdocs.org/stc/SH1-563.md): Tail light modification. · Republic Aviaiton Corp
- [STC SH1-592](https://openairdocs.org/stc/SH1-592.md): American manufactured instrument panel and cabin dome lighting. · Republic Aviaiton Corp
- [STC SH1-614](https://openairdocs.org/stc/SH1-614.md): Anti-collision rotating beacon light. · Republic Aviaiton Corp
- [STC SH1-616](https://openairdocs.org/stc/SH1-616.md): Marginal weather instrument group consisting of directional gyro, gyro horizon and turn-slip indicators. · Republic Aviaiton Corp
- [STC SH1-617](https://openairdocs.org/stc/SH1-617.md): Grimes eyebrow instrument lights. · Republic Aviaiton Corp
- [STC SH1-618](https://openairdocs.org/stc/SH1-618.md): Shoulder harness for pilot and copilot. · Republic Aviaiton Corp
- [STC SH1-623](https://openairdocs.org/stc/SH1-623.md): American type folding 3-man troop seat. · Republic Aviaiton Corp
- [STC SH159EA](https://openairdocs.org/stc/SH159EA.md): Raybestos-Manhatten Ray-Bond (R) R8001 adhesive as an alternate bond for bonding of Alouette. · Republic Aviaiton Corp

## 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 = '8680502'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '60002')
  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/N174DB/stcs

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