N400KB
STCs that may be installed · 253
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 = '21101PL'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41508')
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.
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 = '21101PL'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41508')
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_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Engine · Lycoming 0-320 series
STC SE4408SWMiscellaneous engine cylinder replacement parts.STC SE8776SWInstallation of coated cylinders and piston rings.STC SE00218NYReplacement of Lycoming starter with SKY-TEC 12 volt starter installed.STC SE00226NYReplacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter.STC SE00357NYReplacement of Lycoming starter with SKY-TEC 24-volt starter installed.STC SE2901NMLycoming valve cover gasketSTC SE00590DEInstallation of modified Lubricated CamshaftSTC SE01524CHReplace Slick 6000, 6100, 6200, 6300, 4000, 4100, 4200, and 4300 series magnetos and TCM/Bendix S6-20, S6-200, S6-1200, S-20, S-200, and S-1200 series magnetos with Champion Limited Authority Spark Advance Regulator (LASAR ) Model 4755 and 6755 bush kit ignition systems.STC SE419CHReplace Slick 4000, 4100, 4200, and 4300 series magnetos and TCM/Bendix S-20, S-200, and S-1200 series magnetos with the Champion Limited Authority Spark Advance Regulator (LASAR ) ignition systemSTC SE524CHReplace Slick 4000, 4100, 4200, and 4300 series magnetos and TCM/Bendix S-20, S-200, and S-1200 series magnetos with the Champion Limited Authority Spark Advance Regulator (LASAR )STC SE862GLReplacement of Bendix S4LN-20, -21, -1209, or -1227 model magnetos with Slick model4250 or 4251 magnetos.STC SE3692SW-DIncrease 5 minute takeoff maximum power rating to 160 horsepower.STC SE8193SWGrind nitriden high compression cylinder barrles to plus .010 oversize and install SL75089 P10 piston, SL74242 P10 compression ring, and SL73857 P10 oil ring.STC SE1931CEAdd the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index, (RON+MON)/2.STC SE2587CEAdd unleaded and leaded automotive gasoline, 91 minimum antiknock index per ASTM specification D-439.STC SE8987SWModify engine IAW RAM Aircraft Corp Drawing No. 1724. Minimum fuel grade is 100/100LL.STC SE925GLInstallation of Shadin Co. fuel flow transducer.STC SE01930NYInstallation of Casper Labs 90 degree oil filter housing adapter.STC SE02157NYInstallation and maintenance of new roller-bearing lifters and camshaft.STC SE1779NMInstallation of Precise Flight, Inc. Standby Vacuum System SVS IIISTC SE02207AKLimited to installation on model O-320-E2D, serial number 24305-27A ONLY.STC SE5743NMIntallation of adapter for externally mounted oil filter.STC SE2315NMModification of Lycoming 0-320-A2B engine to 160 HP configuration.STC SE1-201Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D))STC SE682NEConversion of Model 0-320-E2G engine to high compression.STC SE09492SCInstallation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.STC SE00590LAInstallation of Nickson's cylinder barrels on Lycoming reciprocating engine models.STC SE00350SEInstallation of sump mounted chip detector.STC SE1226CEModify engines for a 160 horsepower rating on 100/130 minimum grade fuel.STC SE00252SEModification for a 160 hp rating on 100/100LL minimum grade fuel.STC SE8023SWInstallation and usage of AEROSHELLSTC SE702NEModification of crankcase tappet bores to accommodate large tappets.STC SE4634NMInstallation of oil filter adapter fabricated.STC SE732NEInstallation of 'Auto-Vac-4' primary vacuum system.STC SE3647SWEngine replacement parts.STC SE3513NMInstallation of a Mitsubishi 35 amp automotive alternator with alternator mounted Transpo Electronics solid-state voltage regulator.STC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.STC SE5879SWUse of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP.STC SE399NEInstallation of autovac-2 instrument vacuum system.STC SE388NEInstallation of Bendix magnetoes Model S4LN-21 and S4LN-20.STC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.STC SE336NEAdd the following approved fuel: unleaded automotive gas 87 min. antiknock index.STC SE244NEInstallation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines.STC 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.STC SE1445SOUse of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines.STC SE128NEUse of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.STC SE508ALAddition of crankcase relief valve.STC SE2392SWConversion to fuel injection configuration equivalent IO-320-E2A.STC SE2-7Carburetor air temperature bulb in Marvel-Schebler MA-4-5 carburetor.STC SE5CEPrestolite ALK-5001 alternator.