N20821
STCs that may be installed · 400
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 = '7101820'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41506')
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 = '7101820'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41506')
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.
Airframe · Piper PA-18-135
STC SA02299AKInstallation of a replacement fuel selector valve.STC SA02295AKInstallation of a high capacity fule gascolator assembly.STC SA4615NMFabrication and installation of welded steel universal aft fuselage float strut attachment fittings.STC SA02294AKInstallation of a fuselage cowl (boot cowl) battery box system.STC SA01516SEReplacement of the Scott Master Brake Cylinder (Non-Vented Diamphram type) with a Steve s Aircraft Model SA6-01 Master Cylinder with a vented reservoir.STC SA1512WEInstallation of exhaust gas temperature monitoring systems Model EGT-1.STC SA01695SEInstallation of an antennaSTC SA00402SEInstallation of a remote spin-on oil filter adapter. (GC-1B w/Lycoming or Cont 360 engine installed)STC SA02280AKInstallation of a Maule Fuel Selector Valve.STC SA02273AKInstallation of Performance Air Motive, Inc. (PAMI) PA-18 MufflerSTC SA1-155McCauley fixed pitch MET-L-PROP1A170/GM7448 with Lycoming O-290-D2 engine.STC SA1-156McCauley fixed pitch MET-L-PROP1A170/GM7446 with Lycoming O-290-D engine.STC SA1-32McCauley fixed pitch MET-L-PROP1A170/GM7450 and 1A170/GM7452 with Lycoming O-290-D2 engine.STC SA1-33McCauley fixed pitch MET-L-PROP1A170/GM7450 and 1A170/GM7452 with Lycoming O-290-D2 engine.STC SA1-41McCauley fixed pitch MET-L-PROP1A170/GM7450, 1A170/GM7452 and1A170/GM7454 propellers with Lycoming O-320-A1A engine.STC SA1-59McCauley fixed pitch MET-L-PROP1A170/GM7448 and 1A170/GM7450 with Lycoming O-290-D engine.STC SA01860NYInstallation of Graphic Engine Monitors (GEM) Models GEM-610 and GEMINI 1200.STC SA2318NMFabrication of North River Aviation model 8400 brake booster assemblies, and modification of Scott Aviation model B-711 brake master cylinders by installation of said assemblies.STC SA4008NMInstallation of removable panels on the battery box slides.STC SA01487SEInstallation of a GDL 69 or GDL 69A XM Satellite Receiver in accordance with Garmin Supplemental Type Certificate Master Data List, P/N 005-C0217-00, Revision A, dated December 20, 2004, or later FAA approved revision.STC SA00680SEInstallation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.STC SA01158WIInstallation of Aero Enhancements UV250-1 Supplemental Instrument Panel Lightning System.STC SA02236AKFabrication and installation of F. Atlee Dodge Heavy Duty Standard Length Main Landing Gear, P/N 3225A, in accordance with F. Atlee Dodge Master Data List No. 3225-1.5, Revision: None dated March 14, 2005, or later FAA approved revisions.STC SA02087CHInstallation of MT-Propeller model MTV-15-C/200-50 or MTV-15-B/210-58 constant speed propellerSTC SA02234AKInstallation of a high Pressure Brake Master Cylinder assembly DCA1248-1260.STC SA02217AKInstallation of Garmin AT Model GDL90 UAT Data Link System, in accordance with Garmin AT, Inc., GDL 90 UAT Master Data List, P/N 560-0278-01, Revision A, dated November 12, 2004, or later FAA approved revision.STC SA02655ATInstallation of JAARS Model F5K Automatic Flight Following System (AFFS) in Helio H-295 type aircraft.STC SA590ALInstall extended baggage compartment.STC SA5-65Installation of Goodyear 25 x 11.0 - 4 Type IV tires with tubes on Goodrich Model 841696 4-inch wheels on main landing gear, using Alaskan Aircraft Equipment Supply Model A-1 rim adaptersSTC SA01944CHModify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index, per ASTM Specification D-439 or D-4818 of any volatility class, A through E, or 82UL AVGAS per ASTM D-6227.STC SA767GLSuperseded by STC SA01944CH. Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index.STC SA8075SWInstallation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER)STC SA2167NMInstallation of the Precise Flight stand-by vacuum system (SVS).STC SA10126SCInstallation of Aero Advantage ADV200 series vacuum pump per Aero Advantage Drawing Number ADVMSI 500 latest FAA approved revision.STC SA01258SEInstallation of the Automatic Flagman Dispenser Models in accordance with Automatic Flagman Master Drawing Lists specified in attached AML, or later FAA approved revision.This STC supercedes several existing STC s as listed in the notes on the attached AML.STC ST01700NYInstallation of the following Aerospace Logic aircraft instruments: EGT-100 Exhaust Gas Temperature Indicator, CHT-100 Cylnder Head Temperature INdicator, FL-100 Dual Fuel Level Indicator, FP-100 Fuel Pressure and Ammeter Indicator, OL-100 Oil Pressure and Temperature Indicator, and VA-100 Voltmeter and Ammeter Indicator.STC SA3282WEInstallation of George M. Adams DGA-2000 or Bodell BMI-2000 wheels and Bodell BMI-252 brakes.STC SA1008WEInstallation of Poly-Fiber covering material.STC SA02204AKFabrication of replacement engine exhaust system assembly. Limited to airplanes equipped with FAA approved installations of Textron Lycoming O-320 model series engines having a compression ratio of 8.5:1 and a rated power of 160 hp for all operations.STC SA489EAInstallation of ARP Inc. carburetor ice detection systemSTC SA1064GLSurrendered and incorporated into STC SA00478CH.STC SA00932SEInstallation of the Stewart wing tip assemblySTC SA02189AKFabrication and installation of p/n 3344 main landing gear safety cable kit for 3-inch extended main landing gear. Applies only to planes modified by installation of 3-inch extended main landing gear per STCs SA02152AK or SA02175AK.STC SA2478WEInstallation of automatic flagman Model 5ASTC SA09470SCInstallation of Starter Indicator light system.STC SA02170AKInstallation of McCauley propellers, Models 1A175-GM8241 through 1A175-GM8244.STC SA2687NMInstallation of Truboplus/ Electronics Int'l gauges and switches.STC SA71GLInstallation of air filtersSTC SA02156AKFabrication and installation of a lightweight battery rack under pilot's seat.STC SA4077NMInstallation of replacement aft fuselage section.