- Manufacturer (registry)
- LYCOMING
- Model
- O-290-D2
- Registry code
- 42090
- Installed in
- 58 registered aircraft
- Type
- Reciprocating
- Power
- 140 hp
- Data sheet
- TCDSE-229
- Holder
- Lycoming Division AVCO Corporation
Model codes come from the FAA registry’s reference file.
On this page
Airworthiness directives that may apply · 10
ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.
| 1969 | 1 |
|---|---|
| 1977 | 1 |
| 1982 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1998 | 2 |
| 2004 | 1 |
| 2012 | 1 |
| 2026 | 1 |
Engine · Lycoming O-290-D2
AD 2026-04-11Engine (Reciprocating)AD 2012-03-07CarburetorAD 2004-10-14Crankshaft gearAD 98-17-11CrankshaftsAD 98-01-06CarburetorsAD 93-19-04CarburetorsAD 90-04-06 R1Propeller Governor External Oil LineAD 75-08-09Oil Pump Drive ShaftAD 66-06-03Connecting Rod AssembliesAD 54-02-01Magneto TimingSuperseded and historical ADs · 1
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('42090'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number 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 d.ad_number, d.status, d.subject, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('42090'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number 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.
Registered aircraft · 58
N10CFUrwin Keith · Warren, ORN10DDFrasca Air Museum Inc · Urbana, ILN1230AHlavnicka Ruth M · Big Sandy, MT
See all 58 registered aircraftQuery with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
WHERE engine_model_code IN ('42090')
ORDER BY n_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 n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
WHERE engine_model_code IN ('42090')
ORDER BY n_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.
NTSB investigations · 13
Aircraft matched to this engine model through the registry, by N-number and event date, checked against the reported serial number, make and model.
Of 8 cases NTSB coded with a defining event. All defining events
Findings NTSB made part of the probable cause. A case can have several. All findings
Of 5 cases with NTSB’s older coding, defined in its coding manual.
NTSB WPR26FA217Accident · 1 fatalClass 3 · FieldPreliminary reportLancair 235 · Hillsboro, OROn June 12, 2026, at about 1508 Pacific daylight time, a Lancair 235, N10CF, was destroyed when it was involved in an accident near Hillsboro, Oregon. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91…NTSB ERA22LA372Accident · Minor injuriesClass 3 · LimitedFinal reportThomas Wayne L THOMAS' Flyer · Searsmont, MEA total loss of engine power during the initial climb for reasons that could not be determined.NTSB WPR22LA170Accident · No injuriesClass 4 · LimitedFinal reportPiper PA22/135 · Mesa, AZThe pilot's failure to maintain directional control during landing, which resulted in a ground loop.NTSB CEN20CA254Accident · Minor injuriesClass 4 · Data collectionFinal reportVolmer VJ22 · Erie, MIThe pilot's failure to ensure that the amphibious airplane’s wheels were retracted before attempting a water landing, resulting in a nose over during touch down. Contributing to the accident was the lack of a checklist available to the pilot.NTSB GAA15CA084Accident · No injuriesData collectionFinal reportFaunce PA-11 · Morrisville, VTThe pilot's failure to maintain directional control during the landing roll and his deliberate application of excessive braking pressure.NTSB WPR12CA397Accident · No injuriesData collectionFinal reportChampion 7GC · Spanish Fork, UTThe pilot’s failure to maintain directional control during the landing roll.NTSB WPR10LA457Accident · No injuriesLimited investigationFinal reportMyers THORP-18 · Jerome, IDThe pilot's failure to maintain directional control during the landing roll in gusty crosswinds.NTSB CHI08CA261Accident · Minor injuriesData collectionFinal reportNtbk Wag Aero Sport · Oxford, IAThe pilot misjudged his approach path which resulted in insufficient altitude and the subsequent failure to maintain clearance with the trees. Contributing to the accident were the trees and the dusk lighting conditions.NTSB LAX03LA115Accident · No injuriesLimited investigationFinal reportPiper PA-18-135 · Chandler, AZThe student pilot's improper flare and his failure to maintain directional control. A contributing factor is the student pilot's improper recovery from a bounced landing.NTSB NYC88DFA01Accident · No injuriesFinal reportLloyd Feary VJ-22 · Kingston, NYThe aircraft was substantially damaged when it swerved off the side of the runway during landing roll on the first flight by the new owner. The homebuilt amphibian had been inspected by a mechanic, who signed off an annual inspection for the engine but noted…NTSB SEA87LA161Accident · No injuriesLimited investigationFinal reportGrumman AA1B · Ocean Shores, WAThe plt landed his acft onto a golf course which had been the previous site for the airport. The airport had been closed since December 1985 and relocated close by. The pavement at the old airport had been replaced by sod. During landing roll, the aircraft…NTSB ANC85LA096Accident · No injuriesLimited investigationFinal reportPiper PA-18 · Mulchatna River, AKPlt reported that left wheel axle broke during aborted takeoff from gravel bar, causing acft to ground loop. Plt failed to provide complete info & broken axle for analysis.NTSB ANC83LA050Accident · No injuriesLimited investigationFinal reportPiper PA-18 · Northway, AKThe plt reported that while he was flying in a canyon, up cub creek, he encountered unanticipated turbulence. He decided to make a 180 deg turn & leave the canyon. However, while making a left turn, the right wing of the acft struck a tree. Subsequently, the…
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
WHERE a.engine_model_code IN ('42090')
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" 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 c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey
WHERE a.engine_model_code IN ('42090')
ORDER BY c."eventDate" DESC, c."ntsbNumber" 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.
FAA incident reports · 22
Matched to this engine model through the registry, by N-number and event date, checked against the reported make and model.
Accident 20260612006799ACooper John H Lancair 235 · Hillsboro, ORAicraft was unable to gain altitude and descinded into terrain. Prior to impact aircraft contacted several high shrubs. Post crash fire consumed aircraft.Accident 20220813014539AThomas Wayne L THOMAS' Flyer · Searsmont, MEAircraft had not been flown in the last five years and had just come out of a condition inspection. Pilot had never flown the aircraft and this was his first flight. Pilot took off from the grass runway 15 down hill with the fuel selector valve feeding off…Accident 20220502006189APiper PA-22-135 · Mesa, AZOn may 2, 2022, a 1954 Piper PA-22-135, N3390A, [privacy data omitted] lost control shortly after landing. The aircraft was being used training. Visual meteorological conditions prevailed at the time. The aircraft sustained substantial damage. The pilot was…
See all 22 incident reportsQuery with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
WHERE engine_model_code IN ('42090')
ORDER BY event_date DESC, report_number 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 report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
WHERE engine_model_code IN ('42090')
ORDER BY event_date DESC, report_number 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.
Service difficulty reports · 9
SDR 2015FA0000509Switch · shortedON GROUND RUN, AFTER INCIDENT, MAGNETO CHECKED NUMEROUS TIMES, NORMAL. EVENTUALLY, IT FAILED. RECHECKED NUMEROUS TIMES AND FOUND THAT SWITCH WAS GROUNDING INTERMITTENTLY. REPLACE SWITCH ON TIMELY INTERVALS.SDR 2010FA0000503Carburetor · malfunctionedTHE CARBURETOR WAS REBUILT AND YELLOW TAGGED. FLOAT LEVEL WAS SET AT 9/32 INSTEAD OF THE REQUIRED 7/32 CAUSING A LEAN CONDITION THAT BURNED THE TOP END OFF THE MOTOR.SDR 99ZZZX4128Pump · crackedOBSOLETE PUMP BODY. CRACK WAS COMPLETELY THROUGH BODY.SDR 98ZZZX4444Line · corrodedALUMINUM FUEL LINE CORRODED. MANUFACTURER WRAPS FRICTION TAPE ON TUBING FORMING CORROSION TRAP. SUBMITTER SUGGESTED REPLACEMENT WITH CORROSION PROOFED TUBING AND ELIMINATION OF FRICTION TAPE.SDR 98ZZZX4445Line · deterioratedFUEL HOSE INTERNAL DETERIORATION RESULTING IN DECREASED FUEL FLOW TO CARBURETOR. SUBMITTER SUSPECTS AUTOFUEL AND/OR OLD AGE, INADEQUATE INSPECTION AND RECOMMENDED FUEL FLOW CHECK AT ANNUAL INSPECTION.SDR 98ZZZX3457Camshaft · wornENGINE PURCHASED WITH A PARTIALLY ASSEMBLED HOMEBUILT AIRCRAFT. INFORMATION IN LOG INDICATED THE ENGINE HAS BEEN OVERHAULED APPROXIMATELY 6 HRS PRIOR TO AIRCRAFT COMPLETION. ON FIRST FLIGHT, PILOT COMPLAINT WAS LOW POWER. AFTER SEVERAL HOURS OF TROUBLESHOOTSDR 97ZZZX4305Valve · stickingFOUND ENGINE EXHAUST VALVE STICKING. AIRCRAFT HAD BEEN OPERATED ON AVIA GAS. VALVE REQUIRED DISSASSEMBLY, CLEANING, AND LAPPING IN. SMOH: 525 HOURS.SDR 96ZZZX5126Float · failedAN AIRCRAFT EXPERIENCED TOTAL POWER LOSS DURING A PERSONAL FLIGHT. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. INVESTIGATION OF THE ENGINE INCIDENT REVEALED THE FAILURE WAS CAUSED BY A FAULTY METAL FLOAT ON CARBURETOR. THE METAL FLOASDR 96ZZZX4224Support · crackedDURING AN ANNUAL INSPECTION, A CRACK WAS NOTICED ON THE FACE OF THE STARTER RING SUPPORT ASSY. A DYE PENETRANT TEST WAS DONE. THE TEST REVEALED THE CRACK WAS HALF-WAY AROUND THE STARTER RING GEAR SUPPORT, BUT NOT THROUGH THE RING GEAR ITSELF.
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'O290D2' ORDER BY difficulty_date 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 sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'O290D2' ORDER BY difficulty_date DESC
Run 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.
STCs that may be installed · 24
Approved for this engine model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.
STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22STC SE00825WIInstallation of Specialty Products Spin-on oil filter on Lycoming Engines.STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.
See all 24 STCsQuery with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
SELECT stc_number, min(matched_model) AS matched_model
FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
WHERE engine_model_code IN ('42090')
GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY 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 s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
SELECT stc_number, min(matched_model) AS matched_model
FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
WHERE engine_model_code IN ('42090')
GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY 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.