N985B
STCs that may be installed · 107
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 = '1181011'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '27033')
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 = '1181011'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '27033')
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 · Bell 47H-1
STC SA800EAInstallation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power suppliesSTC SA5581SWInstallation of ALCOR true-flow/ totalizer systemSTC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the
Landing /Taxi Recognition Visual Control Light system,STC SR09066RCFabricate the HAC-47-3 Tail Rotor Blade.STC SR02704SEInstallation and maintenance of the Sunspot 36 and 46 series lightsSTC SA02268CHInstallation of Airwolf Filter Corp. Air Oil SeparatorSTC SA615EAInstallation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights.STC SR00359BOInstallation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.STC SR00408NYInstallation of Airwolf remote mounted engine oil filter model AFC-600.STC SR02487AKInstallation of L-3 Communications Avionics Systems ESI-500 Standby Instrument SystemSTC SR02470AKInstallation of the L-3 Communications NGT -1000/2000/2500 ADS-B SystemSTC SR02471AKInstallation of the L-3 Communications NGT -9000/9000R ADS-B SystemSTC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSTC SH279SWModification of dual control cyclic stick into quick removable stick similar to Bell 47A stick by cutting off the stick and making an insert of 4130 steel tube to fit insideSTC SH382SWEligible only on Bell 47 series with open tail booms. Installation of sign per Kitz Kopter's Drawing KK-101 dated 10/14/64.STC SR09321RCInstallation of Improved Main Rotor Grips and Matching Adapter NutSTC SR09341RCInstallation of the main rotor grips with integral drag brace clevis, new drag brace, and matching adapter nut for wood blade configurationsSTC SH909SWInstallation of Franklin 6V-350-A engine, derated to 200 HP. Limited to installation on serial number 1355 ONLY.STC SA00068SEInstallation of fuel flow/pressure instruments. (W/TSIO-360-MB1)STC SA2693NMInstallation of Electronics International digital volt/amp gauges and accessories.STC SA4172NMInstallation of Aviation Development oil filter.STC SA02033ATModification to install an air-oil separator to prevent oil from being aspirated from the engine breather line.STC SA00680SEInstallation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.STC SA489EAInstallation of ARP Inc. carburetor ice detection systemSTC SA02520ATInstallation of M-20 Oil Separator, model 600-WP.STC SA2687NMInstallation of Truboplus/ Electronics Int'l gauges and switches.STC SA1626NM PAGE 1Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series)STC SA2350NM PAGE 1Installation of Electronics International Inc digital carburetor/outside air temperature gaugesSTC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.STC SA3862NM PAGE 1Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.STC SA4173NMInstallation of Simplex Model 7600 modular electrical system. (47G-5 WITH 12 VOLT SYSTEM)STC SH4173NMInstallation of Simplex Model 7600 modular electrical system. (US ARMY OH-13E M74A)STC SH2945NMAddition of a twist grip on the cyclic pitch stick to provide hand operated yaw controlSTC SH3351NMAddition of a twist grip on the cyclic pitch stick to provide a hand operated yaw control.STC SA2190NM PAGE 1Installation of electronics International Digital Volt/Amp Gauges and Accessories.STC SH2231NMInstallation of Pheromone aerial application system. (47H-1 Restricted cat.)STC SH506GLInstallation of modified tail rotor gearbox using original installation hardware and components.STC SH25SWTransceivers KY90, KY90E, KY90H, KY95, KY95E, and KY95H.STC SH828NWInstallation of weighing system. (AS MODIFIED BY STC SH657NW)STC SH95WEInstallation of low profile spray system.STC SH200WEInstallation of stirrup assemblies to directional control pedals for operation by handicapped pilot.STC SH214NWInstallation of Simplex Model 4100 Aerial Dust System.STC SH169WEInstallation of exhaust muffler assembly.STC SH252SWBendix 100-ampere generator30E16-11C.STC SH5-25Installation of tundra snow shoes.STC SH4-1512Installation of adapter assembly for bomb shackel, or cargo hook.STC SH101WEReplacement of existing 50 ampere generator with 100 ampere RWS-985-1340 generator.STC SH48WEInstallation of turbosupercharged Lycoming TVO-435-B1A engine.STC SH176EAStewart-Warner heater.STC SH479SW6V350A engine.