NTSB investigations: Hughes 269C
292 cases on aircraft the registry lists as Hughes 269C. 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.
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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.aircraft_model_code IN ('4470504'))
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.aircraft_model_code IN ('4470504'))
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 NYC99LA217Accident · No injuriesLimited investigationFinal reportHughes 269C · Utica, NYThe pilot's failure to maintain control of the helicopter while maneuvering, which resulted in a hard landing. A factor in this accident was the pilot's lack of total experience in helicopters.NTSB FTW99TA190Accident · Minor injuriesFinal reportHughes 269C · Houston, TXThe hard landing as a result of the flight instructor's failure to attain the proper airspeed before simulating an engine failure, which resulted in the development of a high sink rate. Factors were the night illumination and the soft ground.NTSB FTW98LA362Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Houston, TXThe pilot's failure to refuel the helicopter which resulted in the loss of engine power due to fuel exhaustion. A factor was the lack of suitable terrain for the forced landing.NTSB FTW98TA104Accident · Minor injuriesFinal reportHughes 269C · Brackettville, TXfailure of splines on the drive shaft coupling after separation of the forward bubber boot and loss of lubrication (grease), which resulted in a disconnect of the rotor drive system and an autorotation/forced landing. Lack of suitable terrain in the forced…NTSB FTW98LA084Accident · No injuriesLimited investigationFinal reportHughes 269C · Riviera, TXThe total loss of engine power due to a fatigue failure of the crankshaft for undetermined reason. A factor was the lack of suitable terrain for the forced landing.NTSB ATL97LA103Accident · No injuriesLimited investigationFinal reportHughes 269C · Johnston, SCfailure of the pilot to maintain the proper rotor RPM during the approach and flare for landing.NTSB SEA97LA065Accident · No injuriesLimited investigationFinal reportHughes 269C · Hood River, ORThe pilot-in-command's misjudgment of altitude and airspeed during a turn.NTSB IAD97LA028Accident · No injuriesLimited investigationFinal reportHughes 269C · Mayfield, KYdisengagement of the main transmission aft pinion nut, allowing the tail rotor splined drive sleeve to disengage from the pinion, which resulted in loss of directional control and an emergency (autorotative) landing.NTSB ATL96TA102Accident · Serious injuriesFinal reportHughes 269B · Tampa, FLThe failure of maintenance personnel to secure the engine oil screen housing during the 50-hour inspection.NTSB SEA96FA130Accident · 1 fatalField investigationFinal reportHughes 269C · Eldon, WAfatigue failure of the connecting rod cap, which resulted in loss of engine power and ditching at sea.NTSB LAX96FA177Accident · 1 fatalField investigationFinal reportHughes 269C · San Diego, CAthe decision of the pilot to fly at low altitude and low airspeed within a hazardous performance area published in the pilot operating handbook. Factors in the accident were tailwinds, lack of operator preventative maintenance impairing engine power,…NTSB ATL96LA063Accident · No injuriesLimited investigationFinal reportCessna 172RG · Gulf Shores, ALThe failure of both pilots to maintain an adequate visual lookout. A factor was the lack of position reports via radio by the pilot of the helicopter.NTSB LAX95LA271Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Redlands, CAThe company's maintenance personnel improper servicing of the landing skid actuators.NTSB SEA95LA097Accident · Serious injuriesLimited investigationFinal reportHughes 269C · Lamont, WAUndetermined loss of engine power and an inadequate autorotation.NTSB FTW95GA090Accident · No injuriesFinal reportHughes 269C · Dumont, TXThe loss of engine power due to overstress fractures of the #3 cylinder connecting rod cap bolts. The origin of the fractures could not be determined.NTSB CHI95LA029Accident · No injuriesLimited investigationFinal reportHughes 269C · Garden City, KSinadvertant engagement of the rotor drive system, while the helicopter had been left unattended by the pilot.NTSB FTW95LA011Accident · No injuriesLimited investigationFinal reportHughes 269C · Livingston, TXThe improper flare resulting in an undershoot of the intended landing area. A factor was the bird strike.NTSB LAX94LA306Accident · No injuriesLimited investigationFinal reportHughes 269C · Puunene, Maui, HIthe improper overhaul of the red blade main rotor damper, and the inadequate maintenance condition of the other rotor dampers and the landing gear dampers, which led to an uncorrectable ground resonance vibration and a subsequent rollover.NTSB FTW94GA204Accident · Minor injuriesFinal reportHughes 269C · London, TXThe partial power loss due to a sticking valve. Factors were the remaining worn lobes on the camshaft and the lack of suitable terrain onto which a successful forced landing could be executed.NTSB LAX94LA146Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Merced, CAthe pilot's misjudgement of the descent rate and his delayed throttle application.NTSB ATL94GA038Accident · Serious injuriesFinal reportHughes 269C · Atlanta, GAThe inadvertent closing of the fuel shutoff valve by the pilot. A factor in the accident was the failure of the pilot to maintain rotor RPM during the autorotation.NTSB LAX93LA227Accident · No injuriesLimited investigationFinal reportHughes 269C · Van Nuys, CAthe student pilot's failure to maintain the altitude while maneuvering toward the parking area. The student pilot's lack of total experience was a factor in this accident.NTSB BFO93FA019Accident · 2 fatalField investigationFinal reportHughes 269C · Tonawanda, NYImproper inflight planning/decision by the pilot and his failure to maintain clearance from an obstacle during flight. Factors related to the accident include poor visibility and weather conditions at dusk, and the pilot's excessive airspeed for the…NTSB LAX93LA087Accident · Serious injuriesLimited investigationFinal reportHughes 269C · Folsom, CAThe pilot failing to maintain an adequate visual lookout resulting in the helicopter colliding with electrical transmission wires.NTSB SEA93LA001Accident · No injuriesLimited investigationFinal reportHughes 269C · Hillsboro, ORThe pilot in command's failure to maintain proper altitude during the hover. Factors contributing to the accident were the pilot in command's lack of total experience in rotorcraft and his diversion of attention while hovering.NTSB BFO92FA144Accident · 2 fatalField investigationFinal reportHughes 269C · East Bernstadt, KYInadequate maintenance inspection involving failure to detect wear of the clutch spring assembly, resulting in the uncoupling of engine power to the main transmission.NTSB LAX92LA383Accident · No injuriesLimited investigationFinal reportHughes 269C · Rialto, CAThe pilot/passenger's failure to maintain adequate rotor RPM and the pilot-in-command's inadequate supervision of the flight.NTSB LAX92LA354Accident · No injuriesLimited investigationFinal reportHughes 269C · Corona, CAThe flight instructor's improper supervision of the flight; the dual student pilot's failure to use carburetor heat; and the flight instructor's improper use of the tail rotor pedals. Contributing to this accident was the engine failure due to carburetor…NTSB CHI92LA222Accident · No injuriesLimited investigationFinal reportHughes 269C · Aurora, ILFatigue fracture of the engine crankshaft resulting in loss of power. Factors were the pilot's excessive descent and his lack of total experience.NTSB MIA92T#A02Accident · No injuriesClass 3Final reportHughes 269C · Jacksonville, FLNTSB LAX92FA154Accident · 1 fatalField investigationFinal reportHughes 269C · Hesperia, CAA failure of the student pilot to maintain adequate rotor RPM. Contributing to the accident was a failure of the instructor pilot to adequately supervise the training flight and a delay in correcting a low rotor RPM condition.NTSB NYC91LA227Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Galloway, OHImproper supervision by the flight instructor which resulted in an inadvertent ground contact and a dynamic rollover. A factor related to the accident was improper use of the flight controls by the non-rated student pilot.NTSB CHI91LA207Accident · No injuriesLimited investigationFinal reportHughes 300C · Whitehall, MIThe pilot's failure to maintain adequate clearance from the water. A factor was the dark night light condition.NTSB ATL91FA120Accident · 1 fatalField investigationFinal reportHughes 269C · Blakely, GALoss of engine power for an undetermined reason, and failure of the instructor pilot (CFI) to follow procedures and maintain rotor RPM.NTSB MIA91LA148Accident · No injuriesLimited investigationFinal reportHughes 269C · Tarpon Springs, FLDelay by the pilot-in-command to apply adequate throttle & collective during transition off a dock for a takeoff over a lake. Contributing to the accident was his lack of total experience in the type operation.NTSB LAX91LA152Accident · No injuriesLimited investigationFinal reportHughes 269C · Honolulu, HIThe instructor's improperly planned approach. A factor was the pilot's failure to observe performance data for the helicopter.NTSB CHI91LA097Accident · Serious injuriesLimited investigationFinal reportHughes 269C · North Mankato, MNThe fatique failure of the tail boom support strut attachment cluster and the improper inspection of the cluster attachment.NTSB FTW91LA041Accident · No injuriesLimited investigationFinal reportHughes 269C · Knowles, OKThe pilot's failure to maintain a proper descent rate during the maneuver and his delay in initiating the go-around.NTSB MIA91LA060Accident · No injuriesLimited investigationFinal reportHughes 269C · Deland, FLFailure of the commercial pilot applicant to pull collective pitch and delay by the check airman to pull collective and apply power to recover, resulting in a hard landing.NTSB BFO91LA014Accident · No injuriesLimited investigationFinal reportHughes 269C · Louisville, KYFatigue failure of the number 1 cylinder connecting rod.NTSB BFO90FA079Accident · 1 fatalField investigationFinal reportHughes 269C · Jefferson, MDThe failure of the tail rotor drive transmission system due to a worn tail rotor splined drive sleeve, and inadequate maintenance and/or inspection by the operator. Contributing to the loss of control was the student pilot's failure to maintain adequate rotor…NTSB FTW90FA164Accident · Serious injuriesField investigationFinal reportHughes 269C · Shreveport, LAThe pilot's failure to maintain clearance from the obstruction. Factors related to the accident were: the lack of visual ques due to the light conditions at dusk, the ground observer's lack of assistance and lack of experience in the type of operation, and…NTSB LAX90LA234Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Carlsbad, CAFailure of the pilot to maintain directional control at a hover.NTSB ATL90LA134Accident · No injuriesLimited investigationFinal reportHughes 269C · Saluda, SCPilot's failure to properly plan for high density altitude operations, which resulted in settling with power to the ground.NTSB LAX90LA187Accident · No injuriesLimited investigationFinal reportHughes 269C · Rialto, CAImproper maintenance procedure by maintenance personnel to troubleshoot a reported deficiency and the pilot's decision to demonstrate the vibration, exceeding the design limits of the helicopter and inducing ground resonance. Contributing to the accident was…NTSB MIA90FA117Accident · Minor injuriesField investigationFinal reportHughes 269C · Fort Pierce, FLImproper touchdown during the autorotation by the dual student (ATP), his failure to maintain runway alignment, inadequate supervision by the CFI, and inadequate crew coordination. A factor related to the accident was the obstruction (taxiway light).NTSB MIA90LA076Accident · No injuriesLimited investigationFinal reportHughes 300C · Vero Beach, FLThe failure of the pilot in command/instructor pilot to maintain adequate rotor RPM after landing from a touchdown autorotation. A factor related to the accident was the gusty wind condition.NTSB FTW90LA074Accident · No injuriesLimited investigationFinal reportHughes 269C · Houma, LALoss of engine power for an unknown reason.NTSB FTW90LA065Accident · No injuriesLimited investigationFinal reportHughes 269C · Encinal, TXThe loss of directional control due to the failure of the tail rotor cable.NTSB LAX90LA065Accident · No injuriesLimited investigationFinal reportHughes 269C · Rialto, CAThe lack of adequate supervision by the instructor pilot during a critical phase of flight when he allowed a student to perform in an unsafe manner without taking immediate corrective action.