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.
6898784HTAdapter, Splined-Turbine 2nd Stage23055441HTKey, 2nd Stage Turbine Nozzle Assembly6843357HTCage, Bearing-Plain, 2.678 ID X .590 Wide & Oversizes2523139HTPointer, Power Turbine Governor23009572HTE-Seal, 2.742 I.D. Face Type, External Pressure2543133HTCover Assembly2523475HTGasket2522102HTPin, Straight, Headless2523280HTSeat, Valve23073356HTValve-Poppet, Compressor Bleed23059594HTRing, Retaining- Internal, 1.244 OD x .060 Thick23004203HTSeal, Power Turbine Support6854936HTInsert, Screw THD-Flanged, .4375-20x281 I.D.2540601HTSpring, Helical Extension23030978HTSeal Serrated- Balance Piston6895180HTGuide-Valve Bushing953508-8HTPacking, Preformed O Ring6844007HTShaft, Gear-Oil Pump6892287HTCage Bearing-Plain 1.654 I.D. x 0.467 Wide (& Oversize)H250-10001Gearshaft Assy., Spur Adapter23001929HTStud, Shouldered, Stepped 0.375-16x .3125-24x 1.564Lg.6856987HTPoppet Assy., Anti-Icing Valve23039175HTDiaphragm6876294HTTube Assy., Air-Bleed Valve6889316HT_Cage Bearing-Plain 62mmI.D.x 16mm Wide6820651HTConnector- Oil Pump Supply2529242HTSpring, Helical, Extension6859172HTTube Assy., Fuel Control to Pump6859880HTNut, Self-Locking Hex, Thin Forged, .164-36 UNJF2520488HTGasket2538982HTNut951790HTPacking, Preformed O Ring47089HTOuter Air Shroud, Fuel Nozzle2525104HTGasket951394HTPacking, Preformed O Ring953515-5HTPacking, Preformed O Ring6870737HTRing, Piston, Split Seal-2.970 O.D.6848437HTTube Assy., Fuel Control To Pump6871461HTTube Assy., Air-Fuel Control to Regulator Pressure2520569HTBushing566-S-22HTPacking, Preformed O Ring6893483HT0.460 O.D. Bellow Assembly6829641HTNut, Spanner-SPL Lock Flange6843363HTCage, Ball Bearing-1.654 ID X .849 Wide (and Oversizes)6857285HTTube Assy., Scav Oil-Frt Support to Accessory Housing6876872HTSeal Labyrinth-Rear Comp. Bearing (Rotating)2525170HTBushing6889096HTRing, Piston, Split Seal2523282HTSeat, Valve2537568HTRing
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