N326WR

STCs that may be installed · 165

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.

Query with SQL
duckdb -csv -c "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 = '0140302'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '17227')
    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"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Engine · Continental IO-520-A

STC SE400NEInstallation of Auto-vac-2 instrument vacuum system.Raymond IvesSTC SE7422SWInstallation of Performance Engineering roller rocker arms.Performance EngineeringSTC SE938GLInstallation of oil filler tube extension.Rapco, IncSTC SE2197CEAdd the following approved fuel: leaded & unleaded automotive gasoline 91 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved.Petersen Aviation IncSTC SE4020NMInstallation of Ritter and Iverson Cam P/N 32122-1.Ritter & Iverson Co, IncSTC SE3812SWRecontouring and polishing(porting) of intake manifold and exhaust parts and air flow balancing.High Performance Aircraft · Lists IO-520 SeriesSTC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.Mobil Research & Development Corp · Lists IO-520 SeriesSTC SE5879SWUse 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 IO-520 SeriesSTC SE244NEInstallation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines.Mattituck Airbase, Inc · Lists IO-520 SeriesSTC SE80NEInstallation 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 IO-520 SeriesSTC SE1445SOUse of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines.ProTec · Lists IO-520 SeriesSTC SE72WEBG-341 spark plug as eligible for installation on listed Continental engines.Lewis LeibeeSTC SE12GLInstallation of oil filler cap.Ray Whyte Electric Products Co.STC SE44WEUse of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines.Kling Oil CompanySTC SE7325SWInstallation of crankcase modifications.RAM Aircraft Limited Partnership
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