# STCs that may be installed: N623SF

A list on [N623SF](https://openairdocs.org/aircraft/N623SF.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 SE00825WI](https://openairdocs.org/stc/SE00825WI.md): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. · B & C Specialty Products Inc.
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH.md): Installation of SureFly electronic ignition · SureFly Partners Ltd.
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE.md): Installation of engine crankcase seal. · Ly-Con Rebuilding Company
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH.md): Installation of Challenger cleanable oil filter assembly · Challenger Aviation Products Inc.
- [STC SE00939WI](https://openairdocs.org/stc/SE00939WI.md): Installation of B&C Specialty Products Model BC 315-() Starter on Lycoming engines. · B & C Specialty Products Inc.
- [STC SE2387CE](https://openairdocs.org/stc/SE2387CE.md): Installation of B & C Speciality Products lightweight (10.2 pounds) engine starter P/N BC 315-100-1(12 volt) or P/N BC 315-100-3(24 volt). · B & C Specialty Products Inc. · Lists AEIO-540 Series
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH.md): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application · Hartzell Propeller Inc.
- [STC SE01436LA](https://openairdocs.org/stc/SE01436LA.md): Installation of Firewall Forward Technologies LLC modified camshaft · Centri-lube Technologies LLC
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH.md): Install an electronic engine ignition system · Electroair Acquisition Corp
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI.md): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines · General Aviation Modifications Inc.
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC.md): Installation of fuel injector nozzles. · General Aviation Modifications Inc.
- [STC SE7582SW](https://openairdocs.org/stc/SE7582SW.md): Grinding of high compression NITRIDED Cylinders to.010 oversize, as an alternative to chrome plating or rebarreling, and the installation of SL10207 P10 Piston, SL74241 P10 Top and second compression ring, and SL 73857 P10 oil control ring · Superior Air Parts, Inc
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY.md): Installation of Casper Labs 90 degree oil filter housing adapter. · Casper Labs Inc
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM.md): Intallation of adapter for externally mounted oil filter. · Aviation Development Corporation
- [STC SE09492SC](https://openairdocs.org/stc/SE09492SC.md): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. · Exxon Company USA · Lists AEIO-540 Series
- [STC SE128NE](https://openairdocs.org/stc/SE128NE.md): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. · AMS/OIL · Lists AEIO-540 Series
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE.md): Installation of Firewall Forward Technologies, LLC modified camshaft. · Centri-Lube Technologies LLC

## 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 = '8680601'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41791')
  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/N623SF/stcs

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