NTSB investigations: Lycoming IO-540 series, TX
66 cases on aircraft whose registry engine model is Lycoming IO-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 | 1 |
|---|---|
| 1968 | 1 |
| 1980 | 1 |
| 1982 | 1 |
| 1984 | 2 |
| 1985 | 2 |
| 1986 | 2 |
| 1987 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 1997 | 1 |
| 1998 | 3 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 2 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 3 |
| 2026 | 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.\"eventStateOrRegion\" = 'TX' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
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."eventStateOrRegion" = 'TX' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
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 CEN26LA148Accident · Serious injuriesClass 3 · LimitedPreliminary reportRobinson Helicopter R44 II · Stonewall, TXOn March 24, 2026, about 0930 central daylight time, a Robinson R44 II helicopter, N233JD, was substantially damaged when it was involved in an accident near Stonewall, Texas. The pilot and passenger were seriously injured. The helicopter was operated as a…NTSB CEN25LA059Accident · No injuriesClass 3 · LimitedFinal reportCessna 182T · Pearland, TXThe AA-5 pilot’s failure to maintain separation from the 182T during approach and landing, which resulted in a ground collision during the landing roll. Contributing to the accident was the failure of the AA-5’s electrical system, which prevented the AA-5…NTSB CEN25FA019Accident · 4 fatalClass 2 · FieldFinal reportRobinson R44 · Houston, TXThe pilot’s failure to maintain clearance from a lighted radio tower during a visual night flight. Contributing to the accident was the air traffic controller’s failure to issue a safety alert notifying the pilot of the flight’s unsafe proximity to the tower.NTSB CEN25LA018Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32R-301 · Van, TXThe mechanic’s improper maintenance of the engine’s air induction scat duct, which collapsed during the flight and resulted in a loss of engine power.NTSB CEN24LA081Accident · No injuriesClass 4 · LimitedFinal reportMaule M-6-235 · Beaumont, TXThe pilot’s failure to maintain directional control during landing in crosswind conditions, which resulted in a ground loop on the runway.NTSB CEN23LA380Accident · No injuriesClass 4 · LimitedFinal reportCessna 182T · Klein, TXThe pilot’s failure to maintain directional control during the crosswind landing.NTSB WPR23LA263Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Marble Falls, TXA total loss of engine power due to fuel contamination from an unknown source.NTSB CEN23FA125Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 · Port O'Connor, TXThe pilot’s initiation of the visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of helicopter control. Contributing to the accident was the pilot’s flicker vertigo during the flight.NTSB CEN22LA429Accident · No injuriesClass 3 · LimitedFinal reportCommander 114TC · Savoy, TXA loss of engine power for reasons that could not be determined.NTSB CEN21LA273Accident · No injuriesClass 3 · LimitedFinal reportTony Dubeansky RV10 · Fort Worth, TXA partial loss of engine power due to a separated electronic ignition system connector. Contributing to the accident was the location of the ignition boxes, which provided limited access to the connectors for visual inspection.NTSB CEN19FA004Accident · 2 fatalField investigationFinal reportPiper PA32RT · Poolville, TXThe pilot's loss of airplane control as a result of spatial disorientation and the exceedance of the structural capabilities of the airplane. Contributing to the accident was the pilot's limited experience in instrument conditions.NTSB CEN18LA382Accident · Minor injuriesLimited investigationFinal reportCessna 206 · Sugar Land, TXFatigue failure of the No. 1 cylinder intake valve, which resulted in the loss of engine power.NTSB GAA18CA111Accident · Minor injuriesData collectionFinal reportMaule M 6 · Boerne, TXThe ground vehicle driver’s decision to drive on an active taxiway at night and failure to yield to taxiing aircraft, resulting in a collision with a taxiing aircraft.NTSB CEN18LA069Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 II · Albany, TXA loss of helicopter control for reasons that could not be determined because postaccident examination did not reveal any evidence of mechanical malfunctions or failures of the main rotor and tail rotor systems that would have precluded normal operation.NTSB CEN17LA202Accident · Serious injuriesLimited investigationFinal reportPiper PA36 · El Campo, TXFoam contamination in the fuel injector nozzles from deteriorated foam baffles and water in the fuel flow divider, the combination of which resulted in the loss of engine power.NTSB CEN17FA075Accident · 1 fatalField investigationFinal reportFields Steen Skybolt · Era, TXThe pilot’s loss of airplane control while conducting aerobatic flight maneuvers with insufficient altitude to recover.NTSB CEN16FA261Accident · 4 fatalField investigationFinal reportPiper PA 32R-300 · Houston, TXThe pilot's failure to maintain adequate airspeed after becoming distracted by the open baggage door while operating in the airport traffic pattern, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at…NTSB GAA16CA385Accident · No injuriesData collectionFinal reportRockwell International 114 · Munday, TXThe pilot's failure to maintain directional control during takeoff, which resulted in an aborted takeoff, runway excursion, collision with a fence, and substantial damage.NTSB CEN15FA305Accident · 2 fatalField investigationFinal reportPiper PA 32-300 · Brazoria, TXThe student pilot's failure to arrest the descent in a timely manner and the flight instructor's failure to safely intervene in the routine training maneuver for reasons that could not be determined based on the information available.NTSB CEN14LA497Accident · Serious injuriesLimited investigationFinal reportDarney Glasair III · Austin, TXThe pilot’s use of an improper attitude and airspeed during landing followed by excessive braking, which resulted in the airplane wheelbarrowing on the runway and a subsequent loss of directional control.NTSB CEN14CA142Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Bonham, TXThe pilot's inadequate recovery from a loss of tail rotor effectiveness during a low altitude downwind hover in a gusty wind condition resulting in the helicopter contacting the ground and rolling over.NTSB CEN13LA233Accident · No injuriesLimited investigationFinal reportPiper PA-32-301 · Paris, TXThe improper installation of the connecting rod bolts, which resulted in an engine failure.NTSB CEN12LA529Accident · No injuriesLimited investigationFinal reportPiper PA32RT · Palo Pinto, TXThe pilot's failure to maintain directional control and a proper pitch attitude and airspeed while performing a go-around.NTSB CEN12CA303Accident · No injuriesData collectionFinal reportCessna 182S · Houston, TXThe student pilot’s failure to maintain directional control during the landing roll. Contributing to the accident was the student pilot’s interference with the flight instructor’s attempted remedial actions.NTSB CEN12CA202Accident · No injuriesData collectionFinal reportSmith Aerostar 601P · Casterville, TXThe pilot did not maintain control of the airplane while circling to land.NTSB CEN11LA558Accident · No injuriesLimited investigationFinal reportPiper Aerostar 601P · Alpine, TXThe pilot’s improper flare which resulted in a hard landing. Contributing to the accident was the pilot’s improper decision to fly the airplane with a known mechanical deficiency.NTSB CEN10CA369Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Austin, TXThe pilot's failure to maintain directional control of the helicopter, resulting in impact with trees. Contributing to the accident was the pilot's failure to ensure the door was properly secured prior to flight.NTSB CEN10CA082Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Abilene, TXThe pilot's failure to maintain directional control during the air taxi with shifting winds.NTSB DFW08LA122Accident · 1 fatalLimited investigationFinal reportRobinson R44 · Bartlett, TXThe pilot's failure to maintain tail rotor clearance from terrain (embankment) during takeoff.NTSB DFW08CA054Accident · No injuriesData collectionFinal reportMicco MAC-145B · Arcola, TXThe pilot's failure to maintain directional control. A contributing factor was the prevailing crosswind.NTSB DFW07FA149Accident · 1 fatalField investigationFinal reportSocata TB-20 · Groesbeck, TXThe pilot's loss of control due to spatial disorientation. Contributing factors were the pilot's perceived need to fly to home station and his lack of flight experience in actual instrument meteorological conditions.NTSB DFW07CA126Accident · Minor injuriesData collectionFinal reportGray Jack Tean Rocket F1 · Seabrook, TXThe loss of engine power for undetermined reason. A contributing factor was the lack of suitable terrain for the precautionary landing.NTSB DFW06CA203Accident · No injuriesData collectionFinal reportPiper 601P · Lubbock, TXThe pilot's failure to extend the landing gear while on final approach.NTSB DFW06LA172Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Midland, TXThe partial loss of engine power as result of the maintenance personnel's failure to comply with a manufacture's Service Bulletin (SB). A contributing factor was the lack of suitable terrain for the forced landing.NTSB DFW06FA102Accident · 2 fatalField investigationFinal reportRobinson R44 II · Fredericksburg, TXThe pilot's failure to maintain clearance with the power lines. Contributing factors were the dusk light condition and the pilot's non-compliance with standard taxi and takeoff procedures.NTSB DFW05CA250Accident · No injuriesData collectionFinal reportRobinson R44 · Batesville, TXThe pilot's failure to maintain rotor rpm and his subsequent encounter with settling with power.NTSB DFW05LA193Accident · 1 fatalLimited investigationFinal reportZivko Aeronautics Edge 540-T · Denison, TXThe pilot's failure to maintain control of the airplane while performing aerobatics. A contributing factor was the low altitude.NTSB FTW04LA169Accident · No injuriesLimited investigationFinal reportPiper PA-32R-300 · Dalhart, TXloss of engine power due to a corroded magneto for undetermined reasons.NTSB FTW04LA100Accident · Minor injuriesLimited investigationFinal reportMurphy Glasair III · Weatherford, TXThe pilot's misjudgment of the runway distance due to his misperception of his location point on the runway.NTSB FTW04LA001Accident · Serious injuriesLimited investigationFinal reportBratton Experimental Homebuilt Swearingen SX300 · Floresville, TXThe separation of one propeller blade while in cruise flight. A factor contributing to the accident was the lack of suitable terrain for the forced landing.NTSB FTW03LA181Accident · Minor injuriesLimited investigationFinal reportPiper PA-36-300 · Gruver, TXThe loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW03LA077Accident · No injuriesLimited investigationFinal reportCarlisle Comp Air 6 · Groesbeck, TXThe pilot's improper fuel selector position which resulted in the loss of engine power due to fuel starvation. A contributing factor was the soft terrain for the forced landing.NTSB FTW03LA061Accident · 1 fatalLimited investigationFinal reportCreekmore Team Rocket F-1 · Rosenberg, TXThe in-flight separation of the vertical stabilizer as a result of the builder's failure to install the upper attachment fitting for the vertical fin aft spar.NTSB FTW02FA192Accident · 4 fatalField investigationFinal reportPiper PA-24-260 · Gorman, TXThe pilot's loss of control and the exceedence of the design limits of the airplane which resulted in an in-flight break-up. A factor was inadvertent VFR flight into IMC.NTSB FTW01LA208Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301 · Waco, TXthe mechanic's failure to perform an airworthiness directive, which resulted in the loss of engine oil through a partially failed oil filter converter plate gasket, and subsequent engine failure during takeoff climb. A contributing factor was the lack of…NTSB FTW01LA016Accident · Serious injuriesLimited investigationFinal reportSteven R. Jackson Harmon Rocket 2 · Houston, TXThe collapsing of the inner liner of the induction air hose, resulting in a restriction of airflow to the engine and subsequent loss of engine power. A factor was the lack of suitable terrain for the forced landing.NTSB FTW99LA034Accident · Serious injuriesLimited investigationFinal reportStanton Staros SA 260 · Marion, TXThe fuel leak for an undetermined reason which resulted in an in-flight fire.NTSB FTW98LA396Accident · Serious injuriesLimited investigationFinal reportDempsey Skybolt TD8 · Dundee, TXHard landing due to the pilot's improper landing flare. Factor were the fuel exhaustion due to the pilot's failure to refuel, and his lack of familiarity with the airplane.NTSB FTW98LA303Accident · Serious injuriesLimited investigationFinal reportPiper PA-60-602P · Beaumont, TXThe pilot's failure to maintain control of the airplane while attempting to return to the airport. Factors were the open baggage compartment door and the pilot's diverted attention to the open door.NTSB FTW97LA263Accident · Serious injuriesLimited investigationFinal reportBronner Steen Skybolt · Brazoria, TXa fuel leak at a wobble pump fuel hose clamp, which resulted in loss of fuel and fuel exhaustion. A related factor was the lack of suitable terrain for a forced landing.