N94DN
STCs that may be installed · 215
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 = '2808005'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52143')
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 = '2808005'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52143')
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 · Dehavilland DHC 2 MK III
STC SA4326NMInstallation of a P&W PT6A-3A engine and a Hartzell HC-B3TN-3BY/ T1017EC + 1 propeller.STC SA02006AKFabrication of stabilizer front spar center section.STC SA5926NMInstallation of manifold pressure instrument.STC SA1284GLModify existing wing struts.STC SA1015NEInstallation of redesigned elevator trim tab pushrod assembly.STC SA1792GLInstallation of S-TEC Model 50 autopilot system Option 1 - autopilot only; Option 2 - autopilot and electric trim; Option 3 - autopilot and yaw trim; Option 4 - autopilot, electric trim and yaw trim; Option 5 - Electric trim only.STC SA2844CEInstallation of a plastic cap enclosure over the anti-collision strobe light system.STC SA1726GLReplacement of P&W PT6A-27 aircraft engine with P&W PT6A-28 aircraft engine and Hartzell propeller model HC-B3TN-3DY/T10282.STC SA1723GLInstallation of flow energizers. (DHC-2 (L-20A) MK.III LANDPLANE AND FLOATPLANE)STC SA4642NMFabrication and installation of replacement cabin floor.STC SA4643NMFabrication and installation of baggage compartment door.STC SA4644NMRelocation of aircraft battery.STC SA4645NMFabrication and installation of additional side windows in aft cabin.STC SA4646NMExtension of cabin aft to fuselage station 104.STC SA4647NMModification of cockpit doors and door windows, and installation of doors thus modified.STC SA4648NMFabrication and installation of replacement pilot and co-pilot seats.STC SA4649NMFabrication and installation of replacement single passenger seats.STC SA4650NMFabrication and installation of replacement dual passsenger bench seat.STC SA1490GLReplacement of P&W PT6A-20A aircraft engine with P&W PT6A-27.STC SA690GLInstall additional cabin windows.STC SA714GLInstall a baggage door and an enlarged baggage compartment.STC SA711GLInstall pilot, copilot, and passenger seats.STC SA660WEInstallation of HRD-type fire extinguishing system. (AND STC SA111WE)STC SA954GLInstallation of an electric driven flap pump system.STC SA255NMInstallation of KS Avionics EGT/CHT-2( ) combined exhaust gas and cylinder head temperature monitoring system.STC SA2625NMInstallation of Pee Kay DeVore Spreader Bar (P/N 35-6048) on EDO WA 4665 Seaplane Floats.STC SA1460NMRelocation of battery from station (+96.5) to station (-41.58) and associated bracketrySTC SA9NWInstallation of Sorm Industries Cargo TankSTC SA646NWModification of main landing gear axles.STC SA416NWInstallation of EDO Model 61-5870 floats.STC SA305NWInstallation of EDO 5250 floatsSTC SA547ALModification of elevator and horizontal stabilizer tips.STC SA2105WEInstallation of Model EGT-3 exhaust gas temperature monitor(with rising temperature alarm). (DC-6B (NAVY R6D-1Z) 680)STC SA3-105L2C automatic pilot with altitude control and approach coupler.STC SA115WEPratt & Whitney R-985-APS4 installation converted under STC SE4-864.STC SA245ALRelocation of wing tip fuel control valve.STC SA263SORemoval of power plant extinguisher system and installation of firewall patches.STC SA37EARemoval of left rear cabin door for parachute jumping operations.STC SA4-322Full-flow oil filter 1050-B-83 with element 1A0094.STC SA622WEFuel injected Pratt & Whitney R-985-AN-1, -2, -3, -4, -6, -6B, -8, -10, -12B, -14B, -14B1 or Wasp Jr. SB-3 engine.STC SA00765DE PAGE 1Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensorSTC SA02153LA-DInstallation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) SystemSTC SA02717NYInstallation of VoiceFlight Systems LLC VFS101 Speech Recognition ModuleSTC SA00281BO PAGE 1Installation of Avidyne Corporation MLX770 MultiLink Broadcast Transceiver P/N 700-00163-( ), Sensor Systems Inc. Antenna P/N S67-1575-109, or equivalent, and optional Avidyne Mounting Tray P/N 700-00165-000STC SA00281BO PAGE 2Installation of Avidyne Corporation MLX770 MultiLink Broadcast Transceiver P/N 700-00163-( ), Sensor Systems Inc. Antenna P/N S67-1575-109, or equivalent, and optional Avidyne Mounting Tray P/N 700-00165-000STC SA01933LAInstallation of Garmin Model 400W / 500W Series GPS-WAAS Navigation SystemSTC SA01229SEInstallation of CNX80 GPS WAAS Navigator with integrated VHF Navigation and Communication radios.
Engine · Pratt & Whitney PT6A-34 series
STC SE00002ENInstructions for Continued Airworthiness for the PT6A-34, -34AG, -34B, -36, -114, -114A, -116, -135, and -135A engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals.STC SE02170ATInstallation of Pc Safety Valve KitSTC SE00014ENInstallation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.