NTSB investigations: Lycoming AEIO-540 series
11 cases on aircraft whose registry engine model is Lycoming AEIO-540 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
| 2008 | 2 |
|---|---|
| 2011 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2019 | 1 |
| 2022 | 2 |
| 2024 | 1 |
| 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 ('41568')
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 ('41568')
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 ERA25FA231Accident · 2 fatalClass 3 · FieldPreliminary reportPitts S2 · Broadway, NCOn June 20, 2025, at 0900 eastern daylight time, a Pitts Aerobatics S-2B, N79AV, was destroyed when it was involved in an accident near Broadway, North Carolina. The private pilot and the commercial pilot-rated passenger were fatally injured. The airplane was…NTSB ERA24FA391Accident · 1 fatalClass 3 · FieldFinal reportAviat S-1-11B · Chapmansboro, TNThe pilot’s loss of airplane control while performing an aerobatic maneuver, which resulted in the airplane entering an inverted flat spin at an altitude too low for recovery.NTSB GAA22WA259Accident · No injuriesClass 5 · ForeignMXR Technologies MXS · Hajdúszoboszló, HungaryNTSB WPR22LA153Accident · No injuriesClass 4 · LimitedFinal reportStoddard Hamilton Glasair Super II · Oxnard, CAThe pilot’s failure to maintain airplane control while on final approach, which resulted in a collision with a runway approach light.NTSB CEN19FA270Accident · 2 fatalClass 3 · FieldFinal reportPitts S2 · New Orleans, LAA loss of control for undetermined reasons.NTSB CEN15FA282Accident · 1 fatalField investigationFinal reportChristen Industries Pitts S-2B · Cameron, MOThe pilot’s failure to maintain airplane control during a low-level aerobatic flight maneuver.NTSB CEN14CA533Accident · No injuriesData collectionFinal reportAviat Pitts S 2B · Grants, NMThe pilot's failure to maintain control of the airplane during landing in gusty wind conditions.NTSB WPR14LA065Accident · No injuriesLimited investigationFinal reportAviat S 2C · Chandler, AZThe pilot’s failure to maintain airplane control during landing, which resulted in impact with a runway identifier sign, and the flight instructor’s delayed remedial action to take the controls and initiate a go-around.NTSB WPR11LA458Accident · Serious injuriesLimited investigationFinal reportAviat Pitts S-2B · Redlands, CAThe pilot’s failure to maintain airspeed while maneuvering, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s impairment from alcohol.NTSB DEN08FA100Accident · 1 fatalField investigationFinal reportExtra Flugzeugbau EA 300/L · Gothenburg, NEThe pilot's failure to maintain aircraft control after encountering instrument meteorological conditions. Contributing to the accident were the pilot's recent usage of Marihuana, his impaired judgement and decision making, and the low visibility weather…NTSB LAX08FA134Accident · 2 fatalField investigationFinal reportExtra Flugzeugproduktions-GMBH EA-300/L · Queen Creek, AZThe loss of aircraft control due to an undetermined rudder malfunction.