Fatal NTSB investigations: Lycoming 0-540 series
406 cases on aircraft whose registry engine model is Lycoming 0-540 series. 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
| 1964 | 5 |
|---|---|
| 1965 | 4 |
| 1966 | 2 |
| 1967 | 7 |
| 1968 | 7 |
| 1969 | 6 |
| 1970 | 10 |
| 1971 | 3 |
| 1972 | 5 |
| 1973 | 2 |
| 1974 | 4 |
| 1975 | 3 |
| 1976 | 4 |
| 1977 | 7 |
| 1978 | 8 |
| 1979 | 8 |
| 1980 | 11 |
| 1981 | 8 |
| 1982 | 12 |
| 1983 | 8 |
| 1984 | 7 |
| 1985 | 12 |
| 1986 | 5 |
| 1987 | 7 |
| 1988 | 6 |
| 1989 | 9 |
| 1990 | 5 |
| 1991 | 7 |
| 1992 | 7 |
| 1993 | 6 |
| 1994 | 8 |
| 1995 | 7 |
| 1996 | 5 |
| 1997 | 4 |
| 1998 | 8 |
| 1999 | 1 |
| 2000 | 6 |
| 2001 | 9 |
| 2002 | 7 |
| 2003 | 10 |
| 2004 | 10 |
| 2005 | 8 |
| 2006 | 11 |
| 2007 | 7 |
| 2008 | 7 |
| 2009 | 10 |
| 2010 | 8 |
| 2011 | 11 |
| 2012 | 5 |
| 2013 | 2 |
| 2014 | 3 |
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 5 |
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.\"highestInjuryLevel\" = 'Fatal'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532'))
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."highestInjuryLevel" = 'Fatal'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532'))
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 ERA26FA252Accident · 1 fatalClass 3 · FieldPreliminary reportPiper PA24 · Hazen, NDOn June 28, 2026, about 1317 central daylight time, a Piper PA-24-250, N6852P, was destroyed when it was involved in an accident near Hazen, North Dakota. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part…NTSB WPR26FA224Accident · 3 fatalClass 3 · FieldPreliminary reportPiper PA-24-250 · Middlefield, OHOn June 20, 2026, about 1535 eastern daylight time, a Piper PA-24-250, N6403P, was substantially damaged when it was involved in an accident near Middlefield, Ohio. The pilot and two passengers sustained fatal injuries. The airplane was operated as a Title 14…NTSB ERA26FA214Accident · 1 fatalClass 3 · FieldPreliminary reportPiper PA-25-235 · Saratoga Springs, NYOn May 26, 2026, about 1347 eastern daylight time, a Piper PA-25-235 airplane, N8656L, was substantially damaged when it was involved in an accident near Saratoga Springs, New York. The pilot was fatally injured. The airplane was operated as a Title 14 Code…NTSB WPR26FA151Accident · 2 fatalClass 3 · FieldPreliminary reportPiper PA-32R-301T · Marana, AZOn April 08, 2026 at 1710 mountain standard time, a Piper PA-32R-301T, N4190E, sustained substantial damage when it was involved in an accident near Marana, AZ. The pilot and passenger sustained fatal injuries. The airplane was operated as a Title 14 Code of…NTSB ANC26FA021Accident · 2 fatalClass 3 · FieldPreliminary reportRobinson Helicopter R44 · Boynton Beach, FLOn March 23, 2026, about 1221 eastern daylight time, a Robinson R44 Raven I helicopter, N478AT, was destroyed when it was involved in an accident near Boynton Beach, Florida. The flight instructor and the pilot receiving instruction were fatally injured. The…NTSB WPR26FA069Accident · 1 fatalClass 3 · FieldPreliminary reportPiper PA-32-260 · Rio Linda, CAOn December 24, 2025, at approximately 1230 Pacific standard time, a Piper PA-32-260, N2785Q, was substantially damaged when it was involved in an accident near Rio Linda, California. The pilot sustained serious injuries, and the pilot-rated passenger was…NTSB CEN25FA308Accident · 1 fatalClass 3 · FieldPreliminary reportCessna T182T · Augusta, AROn August 7, 2025, at 1037 central daylight time, a Cessna T182T airplane, N35370, was substantially damaged when it was involved in an accident near Augusta, Arkansas. The pilot was fatally injured and the passenger received minor injuries. The airplane was…NTSB CEN25FA124Accident · 1 fatalClass 3 · FieldPreliminary reportRobinson Helicopter R44 · Danville, VAOn March 15, 2025, about 1500 eastern daylight time, a Robinson R44 helicopter, N331ES, was destroyed when it was involved in an accident near Danville, Virginia. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal…NTSB WPR25FA079Accident · 1 fatalClass 3 · FieldPreliminary reportPiper PA-24-250 · Rock Springs, WYOn January 14, 2025, about 0622 mountain standard time, a Piper PA-24-250, N6502P, was destroyed when it was involved in an accident near Rock Springs, Wyoming. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations…NTSB WPR24FA105Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Madras, ORThe pilot’s continued visual flight rules flight into instrument meteorological conditions, which resulted in an encounter with turbulence and structural icing conditions, loss of control, and subsequent impact with terrain.NTSB GAA24WA049Accident · 5 fatalClass 5 · ForeignPiper PA-32-260 · Terre-de-Haut, GuadeloupeNTSB GAA24WA033Accident · 2 fatalClass 5 · ForeignPiper PA-24-250 · San Juan de la Costa, MexicoNTSB WPR23FA225Accident · 1 fatalClass 3 · FieldFinal reportCessna R182 · McCall, IDMaintenance personnel's failure to properly torque and inspect the magneto hardware, which resulted in a partial loss of engine power.NTSB ERA23FA266Accident · 1 fatalClass 3 · FieldFinal reportWonder Michael S Harmon Rocket · Porter, NYThe pilot’s failure to maintain control of the airplane while initiating a low-altitude aerobatic maneuver, which resulted in impact with trees and terrain. Contributing to the accident was the pilot’s high-risk behavior.NTSB ERA23LA240Accident · 1 fatalClass 3 · LimitedFinal reportCessna R182 · Macon, NCThe pilot’s failure to properly set the elevator trim before takeoff, which resulted in a loss of control during takeoff.NTSB ERA23FA239Accident · 1 fatalClass 3 · FieldFinal reportCommander 114TC · Palm City, FLA loss of engine power for undetermined reasons, and the pilot’s subsequent loss of control, which resulted in impact with terrain.NTSB ERA23FA234Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-25-235 · Hollywood, FLThe pilot’s exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and loss of aircraft control.NTSB ERA23FA185Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Sebastian, FLThe pilot’s failure to maintain airplane control during recovery from a bounced landing, which resulted in the exceedance of the airplane’s critical angle of attack and an aerodynamic stall.NTSB ERA23FA070Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 · Charlotte, NCThe inadequate inspections of the forward left control rod end attachment hardware to the stationary swashplate by the pilot and by maintenance personnel, resulting in an eventual loosening and backing out of the hardware and subsequent loss of helicopter…NTSB ANC23LA002Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA-32-260 · Cordova, AKThe pilot’s improper decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain.NTSB WPR22FA264Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-28-235 · Seguin, TXThe pilot’s failure to maintain adequate airspeed while maneuvering at a low altitude after being distracted when the engine cowling opened during flight, which led to a loss of control and subsequent impact with terrain. Contributing to the accident was the…NTSB CEN22FA298Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-24-250 · St. Jacob, ILThe inadequate maintenance of the airplane fuel system that resulted in fuel exhaustion and a loss of engine power.NTSB CEN22FA208Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Broomfield, COThe pilot’s failure to abort the takeoff due to degraded engine performance. Contributing to the accident was the reduced performance of the engine, the reason for which could not be determined.NTSB ERA22FA223Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-24-250 · Athens, GAA total loss of engine power for reasons that could not be determined based on the available information.NTSB CEN22FA131Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Fostoria, OHThe pilot’s loss of airplane control in night instrument meteorological conditions during the procedure turn of an instrument approach due to spatial disorientation, which resulted in a collision with terrain.NTSB GAA22WA067Accident · 2 fatalClass 5 · ForeignPiper PA-32-260 · Chame, PanamaNTSB CEN22FA031Accident · 4 fatalClass 3 · FieldFinal reportBritten-Norman BN-2A · Beaver Island, MIThe pilot's exceedance of the airplane's critical angle of attack during final approach, which resulted in an aerodynamic stall and loss of control at an altitude too low to recover.NTSB ANC22FA005Accident · 1 fatalClass 3 · FieldFinal reportGerald Jones 2+2 · Kodiak, AKThe pilot's failure to maintain adequate airspeed while maneuvering, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall.NTSB ERA22LA043Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA-28-236 · Orleans, MAThe pilot’s spatial disorientation and subsequent loss of airplane control while maneuvering over water in dark night conditions.NTSB ERA21FA333Accident · 2 fatalClass 3 · FieldFinal reportPiper PA24 · Wadesboro, NCA partial loss of engine power during takeoff for reasons that could not be determined. Contributing was the pilot’s loss of airplane control, resulting in an aerodynamic stall and impact with trees and terrain.NTSB GAA21WA163Accident · 6 fatalClass 5 · ForeignPiper PA-32-260 · Leogane, HaitiNTSB CEN21FA263Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Madisonville, TXThe pilot’s failure to maintain a proper glidepath during final approach for landing, which resulted in impact with trees and terrain.NTSB GAA21WA099Accident · 6 fatalClass 5 · ForeignPiper PA-32-260 · Monterrey, MexicoNTSB GAA21WA076Accident · 1 fatalClass 4 · ForeignPiper PA-31-350 · South Bimini, BahamasNTSB ERA21FA140Accident · 3 fatalClass 3 · FieldFinal reportCessna R182 · Gainesville, GAThe pilot’s loss of control due to spatial disorientation. Contributing to the accident was the pilot’s decision to depart into low instrument meteorological conditions.NTSB WPR21FA114Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-32-260 · Los Angeles, CAThe total loss of engine power due to the failure of the No. 6 exhaust valve for reasons that could not be determined based on available evidence.NTSB CEN20LA374Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA28 · Walker, MNThe pilot’s impairment from the effects of an undiagnosed brain tumor.NTSB CEN20LA373Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA24 · Midland, MIThe loss of engine power due to fuel starvation.NTSB CEN20LA370Accident · 3 fatalClass 3 · LimitedFinal reportPiper PA24 · Bryan, TXA total loss of engine power on takeoff due to fuel starvation.NTSB CEN20LA201Accident · 4 fatalClass 3 · LimitedFinal reportPiper PA28 · Carlinville, ILThe pilot’s attempted recovery from a steep descent which inadvertently exceeded the ultimate load factor of the airframe and resulted in a low-level inflight breakup.NTSB ERA20FA085Accident · 1 fatalClass 3 · FieldFinal reportPiper PA32 · Lake City, FLThe pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and subsequent loss of control at low altitude.NTSB WPR20FA063Accident · 4 fatalClass 3 · FieldFinal reportCessna TR182 · Billings, MTThe pilot’s failure to maintain clearance due to poor decision making in selecting an unsafe altitude during cruise flight.NTSB CEN20WA024Accident · 7 fatalForeign investigationPiper PA32 · Kingston, CanadaNTSB ANC19FA026Accident · 3 fatalField investigationFinal reportHelio H 250 · Seward, AKThe pilot's failure to maintain clearance from trees during takeoff, which resulted in an in-flight collision, a loss of control, and impact with terrain.NTSB ERA19FA179Accident · 1 fatalField investigationFinal reportCessna TR182 · St. Simons Island, GAThe pilot's loss of airplane control during approach for undetermined reasons.NTSB CEN19RA145Accident · 5 fatalForeign investigationPiper PA32 · Roatán, HondurasimportNTSB ERA19FA112Accident · 1 fatalClass 3 · FieldFinal reportPiper PA25 · Fort Lauderdale, FLThe pilot’s failure to maintain proper altitude and clearance while maneuvering during a banner tow flight, which resulted in an in-flight collision with a 19-story building in a heavily congested area. Contributing to the accident were the easterly wind…NTSB WPR19FA042Accident · 1 fatalClass 2 · FieldFinal reportPiper PA-24-250 · Aberdeen, IDThe pilot's diverted attention during the takeoff climb due to a loss of engine power, which resulted in the airplane’s exceedance of the critical angle of attack and subsequent stall/spin.NTSB CEN19FA044Accident · 1 fatalField investigationFinal reportPiper PA24 · Valparaiso, INThe pilot's failure to maintain adequate airspeed during the initial climb after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall and spin.NTSB WPR19FA022Accident · 4 fatalClass 2 · FieldFinal reportPiper PA28 · Guthrie Center, IAPilot incapacitation due to carbon monoxide poisoning as a result of an undetected crack in an engine exhaust muffler, which permitted entry of exhaust gasses into the cabin via the cabin heat system.