NTSB investigations: Lycoming IO-320 series
27 cases on aircraft whose registry engine model is Lycoming IO-320 series, where the defining event was Loss of control in flight. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 2009 | 6 |
|---|---|
| 2011 | 1 |
| 2013 | 3 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 1 |
Where
Open the mapLatest cases
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_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
WHERE c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41509')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '240'))
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_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41509')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '240'))
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.
NTSB CEN26FA064Accident · 2 fatalClass 3 · FieldPreliminary reportPiper PA-30 · West Chicago, ILOn December 17, 2025, about 1349 central standard time, a Piper PA-30 airplane, N8693Y, was substantially damaged when it was involved in an accident near West Chicago, Illinois. The pilot and pilot-rated passenger were fatally injured. The airplane was…NTSB WPR23LA348Accident · No injuriesClass 3 · LimitedFinal reportChampion 7KCAB · Benson, AZThe pilots’ failure to maintain control of the aircraft during takeoff.NTSB CEN23FA284Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-30 · Sherman, TXThe pilot’s failure to maintain control during a forced landing following a loss of engine power. Contributing was the pilot’s failure to feather the left propeller following the loss of engine power.NTSB ERA23FA067Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-30 · Winston-Salem, NCContamination and/or misalignment of the regulator section of the right engine’s fuel servo, which resulted in excessive idle fuel flow and a total loss of engine power. Also causal was the pilot's failure to land immediately on the nearest runway at the…NTSB WPR23LA013Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-30 · Tucson, AZThe pilot’s loss of control during landing for reasons that could not be determined based on the available evidence.NTSB CEN22FA145Accident · 3 fatalClass 3 · FieldFinal reportPiper PA-30 · Pond Creek, OKThe pilot’s loss of control of the airplane, resulting in an in-flight breakup.NTSB WPR21LA179Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-30B · Corvallis, ORThe pilot’s failure to maintain airplane control during a simulated engine out landing which resulted in impact with terrain.NTSB CEN20LA399Accident · 2 fatalClass 3 · LimitedFinal reportVans RV9 · Zeeland, MIThe pilot’s failure to maintain airspeed during a visual approach in dark night conditions, which resulted in an aerodynamic stall and loss of airplane control. Contributing to the accident was the pilot’s lack of recent flight experience at night.NTSB ERA20LA272Accident · No injuriesClass 3 · LimitedFinal reportPiper PA 30 · Alabaster, ALA loss of control and lack of climb performance shortly after takeoff for reasons that could not be determined based on available evidence, resulting in a collision with terrain.NTSB WPR18FA237Accident · 2 fatalClass 3 · FieldFinal reportChampion 7KCAB · Descanso, CAThe pilot's decision to enter a spin without sufficient altitude to recover. Also causal to the accident was the pilot's inadequate preflight weight and balance calculations, which placed the airplane outside the normal and acrobatic category flight envelope,…NTSB CEN17FA297Accident · 2 fatalField investigationFinal reportPiper PA30 · Topeka, KSThe failure of the pilot and flight instructor to maintain aircraft control while maneuvering in the traffic pattern.NTSB WPR17LA164Accident · No injuriesLimited investigationFinal reportPiper PA 28R-180 · San Jose, CAMaintenance personnel's incorrect installation of the aileron control cables and subsequent failure to verify proper aileron functionality following the maintenance, which resulted in roll control that was opposite of that commanded by the pilot, and the…NTSB WPR17FA108Accident · 2 fatalField investigationFinal reportPiper PA 30 · Haines, AKThe pilot's decision to turn toward the inoperative engine after conducting a low-level pass, which resulted in an aerodynamic stall at too low an altitude to recover. Contributing to the accident was the pilot's decision to perform the flight and the engine…NTSB CEN16FA276Accident · 1 fatalField investigationFinal reportPiper PA 30 · Plainfield, ILThe pilot's failure to maintain airplane control during an en route climb near convective activity, which resulted in an aerodynamic stall, an uncontrolled descent, and a subsequent in-flight breakup due to an exceedance of the airplane's design load…NTSB CEN16FA014Accident · 2 fatalField investigationFinal reportZidek Vans RV-4 · Cortland, NEThe pilot's decision to intentionally maneuver at a low altitude and his failure to maintain adequate airspeed during the climbing right turn, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.NTSB ERA15FA378Accident · 1 fatalField investigationFinal reportPiper PA 30 · St. Petersburg, FLThe pilot's failure to maintain single-engine minimum controllable airspeed following a loss of right engine power during initial climb. Also causal was the loss of right engine power for reasons that could not be determined because examination of the…NTSB CEN15LA059Accident · 1 fatalLimited investigationFinal reportRoss H/Herriott M Vans Aircraft RV 3 · Las Cruces, NMThe pilot’s failure to maintain airplane control, which resulted in a stall/spin. Contributing to the accident was the pilot’s failure to obtain adequate familiarization in the accident airplane type before the accident.NTSB ERA14FA077Accident · 2 fatalField investigationFinal reportPiper PA-30 · Biglerville, PAThe noninstrument-rated pilot's spatial disorientation after inadvertently encountering instrument meteorological conditions at night and his subsequent loss of airplane control.NTSB CEN13FA420Accident · 2 fatalField investigationFinal reportChampion 7KCAB · Oak Ridge, LAThe private pilot’s and the flight instructor’s failure to maintain airplane control while performing agricultural operations turns low to the ground, which resulted in a stall/spin. Contributing to the accident was the private pilot’s impairment due to his…NTSB WPR13CA164Accident · No injuriesData collectionFinal reportPiper PA-30 · Fullerton, CAThe pilot receiving instruction’s failure to maintain airplane control during takeoff and the flight instructor’s delayed remedial action.NTSB CEN11LA364Accident · Minor injuriesLimited investigationFinal reportPiper PA30 · Phillipsburg, OHThe pilot’s failure to maintain directional control during takeoff following a loss of left engine power for undetermined reasons.NTSB CEN09LA561Accident · Serious injuriesLimited investigationFinal reportChampion 7KCAB · Stacy, MNA partial loss of engine power during initial climb for undetermined reasons.NTSB CEN09LA512Accident · 1 fatalLimited investigationFinal reportHooper James A Bushby MUS · Gladwin, MIThe pilot's failure to maintain aircraft control for undetermined reasons.NTSB ERA09LA398Accident · 2 fatalLimited investigationFinal reportBarber John A Glasair · Switzerland, FLA loss of control in flight for undetermined reasons. Contributing to the accident was the pilot's performance of aerobatic maneuvers at altitudes lower than those recommended by the kit manufacturer, resulting in insufficient terrain clearance to conduct a…NTSB WPR09LA324Accident · Serious injuriesLimited investigationFinal reportPiper PA-30 · Tucson, AZThe pilot’s failure to maintain directional and lateral aircraft control during takeoff. Contributing to the accident was the partial loss of left engine power for undetermined reasons.NTSB ERA09LA158Accident · No injuriesLimited investigationFinal reportPiper PA-30 · Lakeville, NYThe pilot's failure to maintain aircraft control following a loss of engine power on the left engine for undetermined reasons.NTSB ERA09LA147Accident · 1 fatalLimited investigationFinal reportBellanca 8KCAB · Moscow, TNThe pilot's initiation of a low altitude maneuver followed by an uncontrolled descent into terrain.