Lockheed 18
STCs that may be installed · 177
In force first, then newest. The registry doesn’t record which STCs an aircraft has.
Query with SQL
duckdb -csv -c "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_aircraft_model_stc.parquet'
WHERE aircraft_model_code IN ('5261602')
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"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 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_aircraft_model_stc.parquet'
WHERE aircraft_model_code IN ('5261602')
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_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.
STC SA2-1129Hydraulic system pressure increase to 1050 p.s.i.STC SA2-1132Installation of picture windows and/or emergency exit.STC SA2-1133Installation of integrated alcohol system.STC SA2-1136Installed a Lear rotary electric actuator No. 164EK in carburetor air control valve linkageSTC SA2-1148Installation of VOR antenna on vertical finSTC SA2-1158Fuel tank access port cover wing centersection L-18STC SA2-1159Installation of anti-ice systemSTC SA2-1165Modification to hydraulic system.STC SA2-1166Installation of fuel system.STC SA2-1167Installation of Dual Jato.STC SA2-1170Installation of de-icer boot vacuum system.STC SA2-118Installation of short horizontal stabilizer tips and related equipment.STC SA2-1181Installation of flap speed restricting system L-18.STC SA2-128Increase incidence of horizontal stabilizer.STC SA2-129Exhaust system revised.STC SA2-130Fuel system installed.STC SA2-1517Centersection structural rework.STC SA2-1518Rudder and aileron interconnect installation.STC SA2-1521Installation of fuel dump systems.STC SA2-1522Modification of powerplant installation.STC SA2-1523Propeller autofeathering system installation.STC SA2-1532Installation of stall warning system.STC SA2-154Installation of L712006-502 or503 Airspeed System.STC SA2-1553Stall warning system.STC SA2-1554Increase gross weight to 22,050 pounds takeoff and 20,500 pounds landing.STC SA2-1571Installation of PV-1 oil tank modified to 20 US gallons.STC SA2-163Installation of airspeed systemSTC SA2-164Installation of Grimes rotating beacon P/N G5-790B or G-6965-2.STC SA2-201A section of the forward spar inside fuselage altered.STC SA2-220Cockpit side windows enlarged and structure altered.STC SA2-238The anti-icer system altered to incorporate all anti-icer fluid into one tank rather than the original four-tank systemSTC SA2-248Installation of 200 amp generator systemSTC SA2-249Alter cabin windows on R.H. side of fuselage.STC SA2-250Alter cabin windows on R.H. side of fuselage.STC SA2-251Warren McArthur chair model 225 installed in cockpit for pilot and co-pilot chairs.STC SA2-274Installation of propeller spinner.STC SA2-277Installation of radar antenna, radome nose and fairing.STC SA2-303Installation of Sperry A-12 autopilot.STC SA2-306Installation of L-18 radome kit.STC SA2-307Installation of exhaust trough and short stack using standard nacelle.STC SA2-310Installation of auxiliary electric hydraulic pump.STC SA2-313Installation of 100,000 BTU Janitrol Heater in nose. (LOCKHEED 18 S/N 2477; 2309 only)STC SA2-316Installation of flush loop antenna.STC SA2-320Installation of Surface Combustion Corporation Janitrol heater Model S100, 100,000 BTU output.STC SA2-327Installation of extended tail cone fairing.STC SA2-346Modification of flap and trailing edge.STC SA2-354Installation of new engine nacelle cowling and related equipment.STC SA2-357Installation of right and left cockpit dome windows.STC SA2-382Revised exhaust system.STC SA2-400Revision of flap mechanism.
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