N28
STCs that may be installed · 45
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 = '835018X'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41505')
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 = '835018X'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41505')
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 0-235 series
STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22STC SE00825WIInstallation of Specialty Products Spin-on oil filter on Lycoming Engines.STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.STC SE208SOInstallation of ice indicator in the carburetor.STC SE04349CHInstallation of SureFly electronic ignitionSTC SE02352CHInstallation of Challenger cleanable oil filter assemblySTC SE00939WIInstallation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines.STC SE2393CEInstallation of B&C Speciality Products lightweight (10.2 pounds) engine starter, part number BC-315-100-1 (12 volts)
or part number BC-315-100-3 (24 volts)STC SE03232CHInstallation of Engine Preheat Kit p/n TA2925-1 for 115 volt applicationSTC SE04577CHInstall an electronic engine ignition systemSTC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft enginesSTC SE8628SWInstallation of oil nozzles for lubrication of cam and filters.STC SE792NWModification of a Lycoming0-235-L2C, or 0-235-L2A engine to increase HP rating from 115-HP at 2700 rpm to a continuous125 HP at 2800 rpm.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 SE888GLReplacement of Bendix S4LN-20, -21, -1209, or -1227 model magnetos with Slick model 4250 and 4251 magnetos.STC SE3877NMModification of a Lycoming O-235-L2C engine to increase the horsepower rating from 115 HP @ 2700 RPM to a continuous 125 HP @ 2800 RPMSTC SE8707SWAlteration of Lycoming O-235 engine to allow use of ethanol fuel.STC SE01930NYInstallation of Casper Labs 90 degree oil filter housing adapter.STC SE01943CHAdd the following approved fuels: unleaded automotive gasoline 87 minimum antiknock index, per ASTM Specification D-439 or D-4814 of any volatility class, A through E, or 82UL AVGAS per ASTM D-6227.STC SE790GLSuperseded by STC SE01943CH. Replace Lycoming piston number LW-13623 with Lycoming piston number 73851.STC SE1779NMInstallation of Precise Flight, Inc. Standby Vacuum System SVS IIISTC SE5743NMIntallation of adapter for externally mounted oil filter.STC SE00988CHModify Lycoming aircraft engine Model O-235-C2C rated at maximum continuous 108 hp at 2600 rpm and 6.75:1 compression ratio to maximum continuous 115 at 2700 rpm and 8.5:1 compression ratio.STC SE09492SCInstallation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.STC SE00350SEInstallation of sump mounted chip detector.STC SE5173NMInstallation of a replacement oil cooler adaptor, P/N ADC-310.STC SE2203NMInstallation of high compression pistons.STC SE8023SWInstallation and usage of AEROSHELLSTC SE2606CEAdd unleaded and leaded automotive gasoline, 91 minimum antiknock index(RON+MON)/2 per ASTM Specification D-439.STC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.STC SE2035CEAdd the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approvedSTC 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 SE5945SWGrind mitrided choked engine cylinders .010-inch oversize and install .010-inch oversize pistons and rings.STC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.STC SE1976SWManufacture of new cylinder barrels and rebarreling with original cylinder head.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 SE5791SWInstallation of any or all engine components parts or modifications on Avco 0-235 series engines.STC SE2364NMModification to lower horsepower rating from 118 H.P. at 2800 RPM to 115 H.P. at 2800 RPM for takeoff and 115 H.P. at 2700 RPM to 108 H.P. at 2600 RPM for maximum continuous.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 SE5CEPrestolite ALK-5001 alternator.