Lycoming IO-540-U1A5D
PMA parts · 1,117
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 ('1E4')
AND len(list_intersect(tcds_models, ['IO-540-U1A5D'])) > 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 ('1E4')
AND len(list_intersect(tcds_models, ['IO-540-U1A5D'])) > 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.
AEL75287Housing, Oil PumpAEL66224Gasket, Fuel InjectorAEL54002Cylinder BarrelAEL72343StabilizerAEL11797Spring, Inner ValveAEL75151StabilizerAEL10442Gear, Prop Governor DriveAEL11750Connecting Rod AssemblyAEL16740Valve, ExhaustAEL11958Guide, Exhaust149NLAircraft Starter Assembly149NL/ECAircraft Starter AssemblySL36006W-A20PCylinder Complete Assy.SIM6L6 Cylinder Lycoming IgnitionES10-682000-4HousingAEL10442Gear, Prop Governor DriveAEL16740Valve, ExhaustAEL23274Impeller, Oil Pump DrivingAEL66224Gasket, Fuel InjectorAEL11956Guide, IntakeAEL12949Valve, IntakeAEL75287Housing, Oil PumpAEL11797Spring, Inner ValveAEL75151StabilizerAEL72343StabilizerAEL11750Connecting Rod AssemblyAEL11796Spring, Outer ValveAEL54002Cylinder BarrelAEL11958Guide, ExhaustAELW10208PistonAEL13622Valve, IntakeCFRA8987GasketCFRA9099TagCFRB10896Data TagCFRA7654Thrust WasherCFRA8297SpringCFRB8935CouplingCFRB9085Rotor10-349310-1Magneto, Ignition, Type S6LN-12092576624Flow Divider2524232Flow Divider2576564Flow Divider2524864Air Bleed Nozzle2576532Flow Divider2576544Fuel Injection Servo (RSA-5AD1)2524859Servo Fuel Injector (RSA-10ED1)CFRA9099TagCFRB10896Data TagCFRA8297SpringCFRB9085Rotor
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