# STCs that may be installed: Lycoming IVO-540-A1A

A list on [Lycoming IVO-540-A1A](https://openairdocs.org/engine/lycoming-ivo-540-a1a.md).

In force first, then newest. The registry doesn’t record which STCs an aircraft has.

- [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 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 SE8628SW](https://openairdocs.org/stc/SE8628SW.md): Installation of oil nozzles for lubrication of cam and filters. · Cygnet Aerospace Corp
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC.md): Installation of fuel injector nozzles. · General Aviation Modifications Inc.
- [STC SE1339SW](https://openairdocs.org/stc/SE1339SW.md): Modify pistons to Drawings 11007 and 11015; piston rings · Continental Motors, Inc.
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW.md): Miscellaneous engine cylinder replacement parts. · Continental Motors, Inc. · Lists IVO-540 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW.md): Installation of coated cylinders and piston rings. · Continental Motors, Inc. · Lists IVO-540 Series
- [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 SE00890LA](https://openairdocs.org/stc/SE00890LA.md): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models. · Nickson's Machine Shop Inc · Lists IVO-540 Series
- [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 IVO-540 Series
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW.md): Installation and usage of AEROSHELL · Shell Development Co · Lists IVO-540 Series
- [STC SE452NE](https://openairdocs.org/stc/SE452NE.md): Installation and usage of 'Mobil AV 1' aviation oil. · Mobil Research & Development Corp · Lists IVO-540 Series
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW.md): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. · Phillips Petroleum Co · Lists IVO-540 Series
- [STC SE5924SW](https://openairdocs.org/stc/SE5924SW.md): Installation of stainless steel replacement exhaust studs on AVCO engines. · Perrigo & Steele Aircraft Engr Company · Lists IVO-540 Series
- [STC SE80NE](https://openairdocs.org/stc/SE80NE.md): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. · Bel-Ray Company, Inc · Lists IVO-540 Series

## 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, m.matched_model
FROM (
  SELECT stc_number, min(matched_model) AS matched_model
  FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
  WHERE engine_model_code IN ('41965')
  GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/engine/lycoming-ivo-540-a1a/stcs

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