Final NTSB investigations: Lycoming IO-540 series
1,015 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, newest first
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.\"completionStatus\" = 'Completed'
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."completionStatus" = 'Completed'
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 ERA23LA148Accident · Serious injuriesClass 3 · LimitedFinal reportVelocity Velocity SE · Bahia Key, FLA total loss of engine power for undetermined reasons.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 ERA23LA134Accident · No injuriesClass 4 · LimitedFinal reportCessna 182S · Labelle, FLA malfunction of the airplane’s right main wheel brake, which resulted in a loss of control and runway excursion during landing.NTSB WPR23LA108Accident · No injuriesClass 4 · LimitedFinal reportMaule M-7-260C · Lander, WYThe pilot’s failure to maintain directional control during landing.NTSB ERA23FA108Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-32R-301 · Dayton, VAThe pilot’s controlled flight into terrain while descending over mountainous terrain at night.NTSB ERA23LA062Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32 · Perry, GAThe pilot’s failure to maintain directional control during touchdown in a crosswind, which resulted in a runway excursion.NTSB CEN23LA022Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-32R-300 · Evansville, INThe total loss of engine power for reasons that could not be determined based on the available evidence.NTSB ERA23LA030Accident · No injuriesClass 4 · LimitedFinal reportCessna 182 · Factoryville, PAThe pilot's failure to maintain directional control while practicing a soft-field takeoff maneuver, which resulted in a runway excursion and impact with a hangar.NTSB CEN22LA429Accident · No injuriesClass 3 · LimitedFinal reportCommander 114TC · Savoy, TXA loss of engine power for reasons that could not be determined.NTSB ERA22FA368Accident · 3 fatalClass 3 · FieldFinal reportPiper PA32 · Metz, WVThe non-instrument-rated pilot’s intentional visual flight into instrument meteorological conditions based on latent weather information, which resulted in the airplane entering extreme precipitation, a loss of aircraft control, and in-flight break-up.NTSB CEN22LA366Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Maynard, IAAn impact with a powerline as a result of an unexpected wind gust.NTSB CEN22LA345Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Ithaca, NEThe pilot’s failure to maintain clearance from power lines during low level aerial application operations due to a distraction.NTSB WPR22LA271Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-32-301 · San Jose, CAThe pilot’s inadequate preflight inspection and fuel management, which resulted in fuel starvation, a total loss of engine power, and an impact with terrain.NTSB CEN22LA333Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Waterloo, ILThe malfunction of the flight controls for undetermined reasons.NTSB WPR22LA272Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-60-601P · Scappoose, WAThe pilot’s failure to extend the landing gear before landing. Contributing to the accident was the pilot’s failure to utilize a prelanding checklist.NTSB CEN22LA318Accident · Serious injuriesClass 3 · LimitedFinal reportHiller UH12E · Becker, MNThe in-flight failure of the main rotor mast hub due to several undetected fatigue fractures.NTSB ERA22LA366Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32RT · Wilmington, NCA partial loss of engine power during initial climb for reasons that could not be determined.NTSB WPR22LA232Accident · No injuriesClass 4 · LimitedFinal reportMaule MX-7-235 · Copperopolis, CAThe pilot’s failure to maintain lateral control of the airplane during takeoff in gusting wind.NTSB CEN22LA247Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32R-301 · Olla, LAThe partial loss of engine power for undetermined reasons.NTSB CEN22LA243Accident · Minor injuriesClass 4 · LimitedFinal reportMaule MT-7-235 · Flasher, NDThe pilot’s loss of control during a takeoff from a narrow gravel road, resulting in a collision with a fixed obstacle.NTSB ERA22LA259Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32R-301 · Spencer, VAThe pilot’s failure to extend the landing gear before landing. Contributing to the accident was the pilot’s failure to use the landing checklist.NTSB ERA22LA236Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Nashua, NHThe flight instructor’s failure to maintain control of the helicopter during the takeoff, which resulted in a dynamic rollover.NTSB WPR22LA187Accident · Minor injuriesClass 4 · LimitedFinal reportTwenty Second Street Backcountry Boss · Douglas, WYThe pilot’s inadequate flare and subsequent loss of airplane control during landing.NTSB ERA22LA202Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32 · Fountain Inn, SCThe pilot’s failure to obtain the proper touchdown point during landing, which resulted in a runway overrun and collision with a fence.NTSB WPR22LA127Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-32R-300 · St. George, UTThe total loss of engine power for undetermined reasons.NTSB WPR22LA132Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Howe, IDThe pilot’s failure to maintain adequate rotor rpm while descending with a gusting tailwind condition, which resulted in a loss of helicopter control.NTSB CEN22FA113Accident · 1 fatalClass 3 · FieldFinal reportCessna 182T · Heath, OHThe pilot’s failure to maintain altitude after takeoff, which resulted in collision with trees and terrain.NTSB ERA22FA096Accident · 1 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 II · Cosby, TNThe pilot’s intentional, continued flight into instrument meteorological conditions in a helicopter that was not certified for instrument conditions, which resulted in a loss of helicopter control and a collision with trees and terrain.NTSB ERA22LA090Accident · 2 fatalClass 3 · LimitedFinal reportAerofab Lake LA-4-250 · Auburndale, FLA bird strike, which resulted in a loss of control while flying at low altitude over a lake.NTSB CEN22LA065Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-250 · Delta, COFuel starvation resulting in a loss of engine power.NTSB ANC22LA010Accident · No injuriesClass 4 · LimitedFinal reportFound Acft Canada FBA-2C1 · Kenai, AKThe pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion.NTSB ERA22LA077Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32-301 · Orlando, FLThe pilot’s inadequate compensation for winds during the landing roll.NTSB WPR22LA046Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV10 · Hurricane, UTThe total loss of engine power due to a loose fuel line at the fuel servo outlet port.NTSB WPR22FA044Accident · 1 fatalClass 3 · FieldFinal reportJahnke Lionel G Glasair III · Big Bear City, CAThe pilot’s failure to maintain clearance from mountainous terrain for reasons that could not be determined based on the available information, which resulted in controlled flight into terrain.NTSB WPR21LA359Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Phoenix, AZThe student pilot's failure to maintain helicopter control while making a clearing turn which resulted in a hard landing.NTSB WPR21LA357Accident · Serious injuriesClass 3 · LimitedFinal reportFonville Swearingen SX300 · Buckeye, AZThe total loss of engine power due to the failure of the left magneto.NTSB WPR21LA347Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32R-301 · Stanley, IDThe pilot’s failure to maintain airplane control during landing with a gusting crosswind which, resulted in a hard landing and collision with terrain.NTSB ANC21LA080Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Pelican, AKThe pilot’s loss of control while landing on a remote helipad.NTSB ANC21LA079Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Pelican, AKThe pilot’s improper preflight planning to ensure adequate power to hover out-of-ground effect while conducting external load operations.NTSB WPR21LA341Accident · No injuriesClass 4 · LimitedFinal reportRobinson R44 · Camp Verde, AZThe pilot's inadequate preflight performance calculations which resulted in an aborted takeoff and collision with trees.NTSB CEN21LA378Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Gonzales, LAThe pilot’s inadvertent collision with a tree while landing at night which resulted in a hard landing.NTSB CEN21LA358Accident · No injuriesClass 3 · LimitedFinal reportCessna 182 · Patterson, LAThe mechanic’s failure to properly secure the throttle arm rendering it loose and inoperable after takeoff, which resulted in a total loss of engine power.NTSB CEN21LA321Accident · No injuriesClass 4 · LimitedFinal reportSwann Lynn J Seawind 3000 · Charlevoix, MIThe loss of engine power for undetermined reasons based on available evidence.NTSB CEN21LA302Accident · Minor injuriesClass 3 · LimitedFinal reportPiper Aerostar 600A · Wichita, KSThe pilot’s improper fuel planning and management, which resulted in a total loss of engine power due to fuel exhaustion.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 ERA21LA252Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Sylva, NCThe pilot’s intentional departure from the procedures published in the manufacturer’s flight training guide, and his subsequent loss of engine rpm, rotor rpm, and aircraft control.NTSB ERA21LA241Accident · Serious injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Robbinsville, NJThe pilot’s mismanagement of fuel, which resulted in a total loss of engine power.NTSB WPR21LA204Accident · Serious injuriesClass 3 · LimitedFinal reportMcclure B J Glasair III · Eugene, ORThe pilot’s loss of airplane control during the approach to landing due to an asymmetrical flap deployment for reasons that could not be determined based on the available evidence.NTSB ERA21LA186Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-32R-301 · Troy, ALAn unanticipated encounter with a deer shortly after touchdown, resulting in a collision and substantial damage to the airframe.NTSB WPR21LA362Accident · No injuriesClass 3 · LimitedFinal reportMaule MX-7-235 · Ontario, ORA loss of hydraulic fluid and failure of the right brake for reasons that could not be determined due to a lack of available evidence.