Allison 250 SER 250HP
NTSB investigations · 267
Matched to the registry by N-number and event date, 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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
WHERE a.engine_model_code IN ('03002', '03003')
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_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey
WHERE a.engine_model_code IN ('03002', '03003')
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 WPR26LA277Accident · Serious injuriesClass 4 · LimitedFinal reportBell 206B III · Stonewall, OKThe pilot’s failure to maintain clearance from power lines while conducting a low-altitude aerial application.NTSB WPR26FA082Accident · Serious injuriesClass 3 · FieldPreliminary reportBell Helicopter Textron 206L-1 · Kamas, UTOn January 18, 2026, about 1510 mountain standard time, a Bell 206L-1, N138DD, was substantially damaged when it was involved in an accident near Kamas, Utah. The pilot and three passengers received minor injuries. The helicopter was operated as a Title 14…NTSB CEN25LA298Accident · No injuriesClass 4 · LimitedFinal reportBell 47G · Assumption, MNA total loss of engine power due to fuel starvation, which resulted from attitude-inducing unporting of the fuel.NTSB WPR25LA134Accident · No injuriesClass 3 · LimitedPreliminary reportBell 206B · Amboy, WAOn April 14, 2025, about 1800 Pacific daylight time, a Bell 206B, N16671, was substantially damaged when it was involved in an accident near Amboy, Washington. The pilot was not injured. The helicopter was operated as a Title 14 Code of Federal Regulations,…NTSB ERA25LA156Accident · Serious injuriesClass 4 · LimitedFinal reportBell 206 · Chamblee, GAThe pilot’s inadequate fuel planning, which resulted in a total loss of engine power during approach due to fuel exhaustion.NTSB WPR25LA078Accident · No injuriesClass 4 · LimitedFinal reportBell 206A · Lemoore, CAThe pilot’s failure to maintain clearance from power lines while maneuvering at a low altitude.NTSB ERA25LA059Accident · No injuriesClass 4 · LimitedFinal reportBell 206B · Lakeland, FLThe pilot’s failure to maintain yaw control during a tailwind approach, which resulted in a loss of tail rotor effectiveness, an uncommanded spin, and subsequent hard landing.NTSB ERA25LA027Accident · No injuriesClass 4 · LimitedFinal reportBell Helicopter Textron 206L-1 · Canal Winchester, OHAn in-flight collision with a bird while in cruise flight.NTSB CEN24LA368Accident · Serious injuriesClass 4 · LimitedFinal reportBell 206 · Lexington, NEThe pilot’s failure to maintain proper clearance from powerlines.NTSB ERA24LA148Accident · Serious injuriesClass 3 · LimitedFinal reportHughes 369D · Belleville, WVThe ingestion of foreign object debris into the engine, which resulted in a sudden loss of engine power and a subsequent collision with trees and terrain during the forced landing.NTSB CEN24FA049Accident · 2 fatalClass 3 · FieldFinal reportMD Helicopters 600 · Sterling City, TXThe pilot’s failure to maintain clearance from a power line pole’s static arm during forecasted gusting wind conditions, un-forecasted light turbulence, and un-forecasted low-level wind shear conditions, resulting in main rotor blade contact with the static…NTSB CEN23LA048Accident · No injuriesClass 4 · LimitedFinal reportHughes 369HS · Oxford, COThe designated pilot examiner’s failure to maintain a proper descent during a practice 180° autorotation which resulted in a hard landing.NTSB CEN23LA025Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Greenville, ILThe mechanic’s failure to inspect and clean the entire fuel nozzle assembly in accordance with the engine maintenance manual, which resulted in fuel starvation and a partial loss of engine power, an autorotation, and a hard landing.NTSB CEN22LA009Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Gonzales, LAThe student pilot’s failure to compensate for an unanticipated right yaw, which resulted in a loss of tail rotor effectiveness and helicopter control.NTSB WPR21LA333Accident · Serious injuriesClass 4 · LimitedFinal reportBell Helicopter Textron 206L-1 · Glide, ORThe pilot’s failure to maintain clearance from a tree during an aerial application.NTSB CEN21LA139Accident · No injuriesClass 4 · LimitedFinal reportHughes 369 · Kaufman, TXThe pilot’s failure to maintain clearance from a power line during low-level maneuvering.NTSB WPR21LA084Accident · No injuriesClass 4 · LimitedFinal reportHughes 369D · Winthrop, WAThe pilot’s failure to adequately monitor the environment which resulted in a collision with a snowbank and subsequent loss of control.NTSB ERA21LA040Accident · No injuriesClass 4 · LimitedFinal reportBell 206 · Raleigh, NCThe pilot's loss of helicopter control after entry into vortex ring state, which resulted in main rotor blade contact with the tailboom, and impact with the ground.NTSB ERA21LA023Accident · No injuriesClass 3 · LimitedFinal reportBell 206 · Zephyrhills, FLImproper torquing of the “B” nut at the fuel control unit, which led to a total loss of engine power and subsequent autorotation that resulted in substantial damage.NTSB CEN20LA328Accident · 3 fatalClass 3 · LimitedFinal reportBell 206 · Marathon, TXThe in-flight loss of helicopter control for reasons that could not be determined based on the available evidence.NTSB CEN20LA113Accident · No injuriesClass 3 · LimitedFinal reportBell 206 · Clark, MOThe fatigue failure of the pneumatic line for reasons that could not be determined, which resulted in a loss of engine power and subsequent hard landing.NTSB WPR19LA194Accident · Serious injuriesClass 3 · LimitedFinal reportBell 47G 3B 1 · Mosby, MTThe pilot’s failure to account for environmental conditions conducive to a loss of tail rotor effectiveness, which resulted in a loss of tail rotor effectiveness and subsequent loss of control. Contributing to the accident was the pilot’s inappropriate…NTSB ERA18LA020Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Union City, TNThe pilot’s inadvertent slope landing and attempted recovery, which resulted in an incipient dynamic rollover, mast bumping, and separation of the main rotor.NTSB CEN17LA174Accident · No injuriesLimited investigationFinal reportBell 407 · Venice, LAAn in-flight separation of the tip block from the tail rotor blade due to an inadequate blade repair, which resulted in a rotor imbalance sufficient to crack the gearbox attachment studs and gearbox support assembly, and inadequate postrepair test procedures,…NTSB WPR17FA021Accident · 2 fatalField investigationFinal reportHughes 369 · Pukoo, HIThe pilot's decision to continue visual flight into an area of instrument meteorological conditions at night in rain, which resulted in his geographic disorientation and controlled flight into terrain.NTSB WPR17LA019Accident · Serious injuriesLimited investigationFinal reportBell 206B · Yuma, AZThe pilot’s inability to maintain helicopter control after its skid got caught on the landing pad while he was maneuvering the helicopter to land on it, which resulted in a dynamic roll-over.NTSB WPR16LA125Accident · No injuriesLimited investigationFinal reportBell 206 · Bishop, CAThe pilot’s improper preflight weather planning, fuel planning, and fuel management, which resulted in fuel starvation and a loss of engine power. Contributing to the severity of the accident was the pilot's initiation of the landing flare at a high altitude,…NTSB CEN16FA171Accident · 1 fatalField investigationFinal reportMcdonnell Douglas Helicopter 369E · Reedsville, WIThe failure of the power turbine governor's dual-spool bearing due to a lack of lubrication, which resulted in a complete loss of engine power and subsequent impact with terrain.NTSB CEN15LA370Accident · No injuriesLimited investigationFinal reportBell 206B · Cresco, IAThe loss of engine power due to the high-cycle fatigue failure of the third-stage turbine wheel.NTSB ERA15LA060Accident · No injuriesLimited investigationFinal reportBell 206B · West Palm Beach, FLA hard landing for reasons that could not be determined based on the available evidence.NTSB WPR14CA373Accident · Minor injuriesData collectionFinal reportBell 407 · Moab, UTThe pilot's failure to ensure adequate clearance from terrain while landing on sloped terrain.NTSB WPR14FA310Accident · 1 fatalField investigationFinal reportBell 206A · Wenatchee, WAThe pilot's failure to maintain a proper decent rate and path, which resulted in a hard landing and dynamic rollover. Contributing to the accident was the pilot's impairment by a sedating medication.NTSB WPR13LA390Accident · Serious injuriesLimited investigationFinal reportBell Helicopter Textron 206L-1 · Payson, AZA partial loss of engine power due to an overtemperature event that thermally damaged the turbine blades and vanes, which resulted in a hard landing.NTSB WPR13CA206Accident · No injuriesData collectionFinal reportBell Helicopter Textron 206L-1 · Grand Canyon, AZThe failure of the flight instructor and the pilot receiving instruction to recognize before entering the flare that the wind had shifted to a tailwind and terminate the practice autorotation.NTSB WPR13FA119Accident · 3 fatalField investigationFinal reportBell 206B · Acton, CAThe pilot's decision to conduct a flight in dark night conditions with an illuminated cockpit light that degraded his visibility and his ability to identify and arrest the helicopter's descent while maneuvering, which resulted in controlled flight into…NTSB CEN13CA145Accident · No injuriesData collectionFinal reportHughes 369HS · London, OHThe pilot's failure to comply with established cold weather operating procedures, which resulted in a total loss of engine power. Contributing to the accident was the pilot's excessive aft cyclic input during the landing flare, which resulted in main rotor…NTSB WPR12LA426Accident · No injuriesLimited investigationFinal reportBell 206 - B · Mammoth Lakes, CAThe pilot’s inability to maintain sufficient main rotor rpm while maneuvering in high density altitude conditions, which resulted in a precautionary landing and subsequent rollover.NTSB WPR12LA408Accident · No injuriesLimited investigationFinal reportBell Helicopter Textron 206L-1 · Grand Canyon, AZA total loss of engine power during descent for reasons that could not be determined because postaccident engine examinations and testing revealed no evidence of an anomaly that would have precluded normal operation.NTSB WPR12LA341Accident · No injuriesLimited investigationFinal reportFairchild Hiller FH-1100 · Cody, WYThe failure of a tail rotor driveshaft coupling due to fatigue.NTSB WPR12CA236Accident · No injuriesData collectionFinal reportBell 206B · Burbank, WAThe failure of maintenance personnel to properly torque an air tube fitting, which resulted in a total loss of engine power.NTSB CEN12LA258Accident · Minor injuriesLimited investigationFinal reportBell 206B · Amarillo, TXThe pilot's failure to maintain helicopter control during landing in gusty wind conditions associated with a thunderstorm, which resulted in a loss of tail rotor effectiveness.NTSB WPR12LA036Accident · Serious injuriesLimited investigationFinal reportBell 206B · Woodburn, ORThe pilot’s failure to maintain ground clearance while maneuvering with an external load line.NTSB CEN11LA646Accident · No injuriesLimited investigationFinal reportBell 206B · Spicewood, TXThe pilot did not maintain adequate rotor rpm during a low-altitude maneuvering flight.NTSB CEN11LA200Accident · No injuriesLimited investigationFinal reportHughes 369D · Henryetta, OKFailure of the cyclic control system for reasons undetermined.NTSB CEN11GA020Accident · 1 fatalFinal reportBell 206B · Clarkson Valley, MOThe total loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate preflight planning and decision-making, and his improper control inputs following the loss of engine power, which resulted in mast bumping and separation of the…NTSB CEN10LA431Accident · 1 fatalLimited investigationFinal reportBell 47G-4A · Rochester, MNThe total loss of engine power due to a high-cycle fatigue fracture of a first-stage compressor blade. The reason for the fracture could not be determined during postaccident examination.NTSB WPR10CA100Accident · No injuriesData collectionFinal reportBell 206B · Kalispell, MTThe pilot's failure to maintain lateral drift control during landing.NTSB ERA09LA194Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Lee, MAThe pilot's failure to maintain clearance from the overhead wire.NTSB ANC08LA127Accident · Serious injuriesLimited investigationFinal reportBell Helicopter Textron 206L-1 · Homer, AKThe pilot's failure to maintain clearance from power lines during an external load lift. Contributing to the accident was the pilot's lack of situational awareness.NTSB NYC08LA287Accident · Serious injuriesLimited investigationFinal reportBell 206A · Barnesville, PAThe pilot's failure to maintain control of the helicopter during the low-speed, low-altitude maneuver which resulted in a loss of tail rotor effectiveness.
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