Allison 250-C28C
PMA parts · 455
Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.
Query with SQL
duckdb -csv -c "SELECT drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
WHERE tcds_number IN ('E1GL')
AND len(list_intersect(tcds_models, ['250-C28C'])) > 0
ORDER BY supplement_date DESC, drs_guid DESC"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 drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
WHERE tcds_number IN ('E1GL')
AND len(list_intersect(tcds_models, ['250-C28C'])) > 0
ORDER BY supplement_date DESC, drs_guid DESCRun 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.
2538301HTCover2539533HTBearing, Sintered2537956HTPin, Shoulder, Headless23030978HTSeal Serrated- Balance Piston6825546HTInsert, Screw Thd-Flanged 1/2-20x11/16-166890035HTRing, Nozzle, Turbine 4th Stage6876030HTStud, Shouldered, Stepped-.250-28x.500-16x1.374LG.23059568HTPinion Bearing Cage, Stepped, 90MM I.D.6874818HTNozzle, Compressor Bleed Valve336132HTTapered Pin, Split2540117HTSpline, Drive6843362HTCage, Ball Bearing-1.654 ID X 1.389 Wide (and Oversizes)23003101HTAir Passage Bolt, Compressor Bleed Valve951190HTPin, Sraight, Headless2525173HTBushing2539033HTShaft Assy., Drive23039175HTDiaphragmH250-10113Race, Bearing Inner, 20mm I.D.6840476HTScreen Assy., Pressure, Oil Fitting23055441HTKey, 2nd Stage Turbine Nozzle Assembly6810448HTBushing-Sleeve .625 x .815 x .43747070HTBody, Fuel Nozzle23030978HTSeal Serrated- Balance Piston23009573HTPlug, Positioning-Turbine Nozzle Shield2522105HTSpacer2523280HTSeat, Valve23001929HTStud, Shouldered, Stepped 0.375-16x .3125-24x 1.564Lg.23004204HTRear, Cover- Power Turbine953508-17HTPacking, Preformed O Ring6892287HTCage Bearing-Plain 1.654 I.D. x 0.467 Wide (& Oversize)2523139HTPointer, Power Turbine Governor6876294HTTube Assy., Air-Bleed Valve2520569HTBushing951388HTPacking, Preformed O Ring2523862HTWeight6840111HTPoppet, Valve-Press Regulator6848471HTTube, Assy., Pressure, Oil Check Valve To Fire Shield6856986HTPoppet & Seat Assy. Anti-Icing Valve2538982HTNut6870035HTTube Assy., Air-Power Turbine Governor to control6876878HTNut, Spanner-1.125-32 SPL Lock(LH)23009572HTE-Seal, 2.742 I.D. Face Type, External Pressure6859172HTTube Assy., Fuel Control to Pump2539641HTSpring, Helical, Extension2540248HTShaft23032283HTPinion Bearing Cage Power Turbine6898577HTBushing, Torquemeter Bore Gearbox Cover6876872HTSeal Labyrinth-Rear Comp. Bearing (Rotating)2523333HTNut23033441HTSeal, Ring, No. 1 Bearing
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