N239CH
STCs that may be installed · 20
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 = '1385051'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '33903')
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 = '1385051'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '33903')
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 · Boeing-Vertol 234
STC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the
Landing /Taxi Recognition Visual Control Light system,STC SR00925DEInstallation of Garmin GTX 335/335R and GTX345/345R transponders to provide ADS-B Out and In functionalitySTC SR02670SEInstallation of Simplex Model 347 Fire Fighting Tank System (FFTS); Serial Number MJ022STC SH5762NMInstallation of Advanced Technology Aircraft Company engine barrier filter in accordance with Advanced Technology Aircraft Company Master Drawing List No. 234, Revision C, dated August 17, 1992, or later FAA approved revisions. This STC is issued for use in the restricted category only, and the rotorcraft must be operated accordingly with the ATAC engine barrier filter installed.STC SH5685NMInstallation of an improved N2 Control System in accordance with Columbia Helicopters, Inc. (CHI) Master Drawing List 93-AVI-0304, Revision H, dated August 12, 2011, or later FAA-approved revision.STC SR01041SEModification and installation of the Columbia Helicopters, Inc. C34E2057 Utility Interior Configuration, 1-19 Passengers, in accordance with Columbia Helicopters, Inc. (CHI) Master Drawing List No. 01-RDE-0602, Revision A, dated January 14, 2002, or later FAA approved revision. The modified interior will be maintained in accordance with Columbia Helicopter's FAA approved Model 234 manual, Continuous Airworthiness Maintenance Program.STC SH2928NMInstallation of an improved engine electrical wiring harness on Boeing Vertol 234 with Lycoming AL5512 enginesSTC SR01674SEFabrication of Columbia Helicopters, Inc. (CHI) Support Assembly, part number C34D6001-9.STC SR01392SEFabrication and Installation of "Provisional Hardpoints" per Columbia Helicopter Master Drawing List, Document No. 04-RDE-0208, revision B, dated March 17, 2004, or later FAA approved revision and maintained in accordance with Instructions for Continued Airworthiness WAI0204-04, Revision 0, dated May 6, 2003, or later FAA approved revision.STC SR00811NYInstallation of Technisonic Industries Limited TFM-138 series transceiver models.STC SR01834NYInstallation of Globalstar Satellite Telephone System.STC SH2720SOInstallation of Aero Aire Model 234 Environmental Control System (ECS) in accordance with Aero Aire Master Drawing List Document No. A234R002, Revision B, dated March 7, 1990, or later FAA Approved Revision.STC SR00955SEReplacement of the pilot and co-pilot cockpit doors with bubble doors in accordance with McClenahan Engineering Master Drawing List No. DM0116-3, dated June 2, 2001, or later FAA approved revision. (S/N's MJ017 and MJ022)STC SR00956SEInstallation of offset cyclic and collective control sticks in accordance with McClenahan Engineering Master Drawing List No. DM0118-3, Revision A, dated July 13, 2001, or later FAA approved revision. For serial numbers MJ017 and MJ022 only.STC SR00875SEInstallation of Honeywell Solid State Flight Data Recorder (SSFDR) and Teledyne Digital Flight Data Acquisition Unit (DFDAU) per Columbia Helicopters, Inc., Master Drawing List 99-AVI-0221, Revision B, dated February 14, 2001, or later FAA approved revision.STC SR00841SEReplacement of Boeing forward (P/N's 114D1245-7 or -8) and aft (P/N's 114D1350-1, -2, or -3) main rotor masts with Columbia Helicopter main rotor mast P/N's C34D5003-1 and C34D6002-9, respectivelySTC SR00516SEReceiving inspection and modification of amilitary surplused CH-47 transmission housing P/N 114D6241-1 for replacement of the commercial Boeing transmission housing assemby P/N 234D6241-1.STC SR00288SEModification of internal auxiliary fuel tank from a dry-cell type to a wet-cell type.STC SH5973NMApprove increased altitude and weight capability when operated in Category And B operations.STC SH2930NMInstallation of an electronic weighting system.