NTSB investigations: Hughes Helicopters HUGHES 369D
272 cases on aircraft the registry lists as Hughes Helicopters HUGHES 369D. 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 ('4470706'))
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 ('4470706'))
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 WPR13CA057Accident · Minor injuriesData collectionFinal reportHughes 369D · Sheridan, ORThe pilot’s failure to prevent the helicopter from entering a vortex ring state (settling with power) condition during an external load operation, which resulted in the helicopter’s main rotor blades impacting the truck.NTSB CEN13FA075Accident · 1 fatalField investigationFinal reportHughes 369 · Childress, TXThe improper maintenance of the helicopter fuel system that resulted in erroneous fuel gauge indications and the pilot’s inadequate fuel management, both of which resulted in fuel exhaustion during a long-line hover. Also causal was the lack of company…NTSB ERA13LA057Accident · 2 fatalLimited investigationFinal reportHughes 369D · Corning, NYThe pilot’s failure to maintain adequate altitude while conducting a power line aerial observation flight, which resulted in an in-flight collision with wires. Contributing to the accident was the pilot’s lack of total experience in the type of operation.NTSB ERA12LA260Accident · Minor injuriesLimited investigationFinal reportHughes 369D · McCormick, SCThe pilot's decision to use automotive fuel instead of the approved alternate fuel, which resulted in a total loss of engine power.NTSB ERA12CA119Accident · No injuriesData collectionFinal reportHughes 369D · Fall Branch, TNThe pilot's improper decision to continue a visual flight into instrument meteorological conditions, which resulted in a wire strike.NTSB WPR12LA022Accident · Minor injuriesLimited investigationFinal reportMcdonnell Douglas 500D · Colusa, CAA total loss of engine power while maneuvering at low altitude for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation. Contributing to the accident severity was the…NTSB ANC11IA059Incident · No injuriesIncident investigationFinal reportHughes 500D · McGrath, AKA fatigue fracture of the governor-to-fuel control Pc line, which resulted in a partial loss of engine power.NTSB CEN11GA218Accident · Minor injuriesFinal reportHughes 369D · Meeker, COMain rotor contact with the tail boom resulting in tail boom separation.NTSB CEN11LA200Accident · No injuriesLimited investigationFinal reportHughes 369D · Henryetta, OKFailure of the cyclic control system for reasons undetermined.NTSB WPR11LA048Accident · Serious injuriesLimited investigationFinal reportMD Helicopter 369D · Salem, ORThe pilot’s failure to maintain clearance between the longline and trees, which resulted in the longline snagging a tree and then recoiling into the main rotor blades and a subsequent loss of helicopter control.NTSB WPR10GA102Accident · Serious injuriesFinal reportHughes 369D · Kooskia, IDA complete loss of engine power due to the failure of the No. 2 bearing, which was precipitated by electrical arcing that occurred at an unknown time prior to the accident flight.NTSB ERA10LA053Accident · No injuriesLimited investigationFinal reportHughes 369 · Baxley, GAA loss of engine power due to fuel starvation resulting from the pilot’s inadequate preflight inspection of the main fuel valve position.NTSB ERA09FA414Accident · 1 fatalField investigationFinal reportHughes 369 · Franklin, PAA loss of engine power due to fuel exhaustion as a result of the pilot's fuel mismanagement.NTSB ERA09LA317Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Greenville, VAThe inadequate design of the fourth-stage turbine wheel, resulting in the fatigue failure of one airfoil and a subsequent loss of engine power.NTSB ERA09LA194Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Lee, MAThe pilot's failure to maintain clearance from the overhead wire.NTSB WPR09LA144Accident · Minor injuriesLimited investigationFinal reportMD Helicopter 369D · Trona, CAThe pilot's failure to maintain control while landing in a high density altitude environment due to a loss of tail rotor effectiveness.NTSB ERA09LA031Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Carroll Township, PAA total loss of engine power due to the improper assembly of the compressor discharge tubes to the combustion liner.NTSB SEA08TA188Accident · No injuriesFinal reportHughes 369D · Bonners Ferry, IDThe pilot's inadequate preflight planning for the takeoff and the helicopter loading that exceeded the lift performance capability of the helicopter.NTSB LAX08FA233Accident · 3 fatalField investigationFinal reportHughes 369D · Price, UTThe pilot's inadequate preflight performance planning for the takeoff and the loading that exceeded the lift performance capability of the helicopter.NTSB LAX07LA270Accident · 1 fatalLimited investigationFinal reportHughes 369D · Ellensburg, WAThe passenger's inadequate visual lookout and failure to maintain clearance from the rotating main rotor disc while the helicopter was hovering. An uphill terrain condition was a factorNTSB SEA07TA212Accident · No injuriesFinal reportHughes 369D · Omak, WAThe pilot's failure to maintain clearance from the surface of a pond that he was using as a water bucket refill site, which resulted in a tail rotor strike to the water's surface and a torsional overload failure of the tail rotor drive shaft.NTSB CHI07LA193Accident · No injuriesLimited investigationFinal reportHughes 369D · Comfrey, MNThe loss of engine power due to the loose pressure line during aerial application maneuvers which resulted in a hard forced landing.NTSB SEA07LA147Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Troy, ORThe inadvertent entanglement of the crewmemeber's helmet's communication cord with the structure of the helicopter during the helicopter's ascent, which resulted in the crewmember being elevated above ground level before the helmet's cord separated, resulting…NTSB SEA07CA139Accident · No injuriesData collectionFinal reportHughes 369D · Torrance, CAThe pilot's loss of helicopter control while maneuvering at low altitude, which resulted in a hard landing. The wind gusts were a contributing factor.NTSB SEA07LA135Accident · 1 fatalLimited investigationFinal reportHughes 369D · Columbus, MTThe fatigue failure of a turbine blade due to a localized over-temperature of the turbine section as result of a non-uniform fuel distribution by the fuel nozzle. Contributing to the accident was the close proximity of a power line support structure which…NTSB ATL07LA079Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Whiteville, NCA partial loss of engine power due to fatigue fracture of the power turbine governor spring, causing a false pneumatic signal to the fuel control and a corresponding reduction in fuel flow.NTSB SEA07LA108Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Kahuku, HIFatigue cracking of the oil line from the engine gearbox to the oil pressure gauge, which resulted in loss of engine lubricating oil, leading to seizure of the power turbine.NTSB ANC07LA022Accident · No injuriesLimited investigationFinal reportHughes 369D · Gustavus, AKThe inadequate clearance from a tranquilized moose while hovering in ground effect, and the operator's inadequate procedures for such operations, which resulted in an in-flight collision with the moose. Factors associated with the accident were the moose, a…NTSB LAX06LA288Accident · 2 fatalLimited investigationFinal reportHughes 369D · Somis, CAThe pilot's inadequate visual lookout, which resulted in a collision with wires.NTSB LAX06TA259Accident · No injuriesFinal reportHughes 369D · Lahaina, HIthe pilot's failure to shut down the engine prior to exiting the helicopter resulting in the tail rotor contacting the ground. A contributing factor was the gusting wind conditions present at the accident site.NTSB SEA06LA135Accident · No injuriesLimited investigationFinal reportHughes 369D · Moab, UTThe failure of the collective bungee support bracket due to non-compliance with a service information notice, which resulted in the pilot executing a precautionary autorotative landing. A contributing factor was the lack of suitable terrain for the landing.NTSB SEA06LA124Accident · No injuriesLimited investigationFinal reportHughes 369D · Salt Lake City, UTA loss of rotor rpm for undetermined reasons, resulting in a hard landing on top of the commercial building over which the helicopter was working.NTSB LAX06LA015Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Avalon, CAthe pilot's failure to maintain an adequate visual lookout and obstacle clearance altitude, which resulted in a collision with power lines. Factors in the accident were the position of the sun relative to the helicopter's flight path, which lessoned the…NTSB LAX06IA011Incident · No injuriesIncident investigationFinal reportHughes 369D · Kahului, HIThe fatigue cracking and failure of the tail rotor control rod during cruise flight, which resulted in a hard landing during the precautionary landing.NTSB LAX05CA263Accident · No injuriesData collectionFinal reportHughes 369D · North Las Vegas, NVthe pilot's improper use of the cyclic flight control and the flight instructor's inadequate supervision of the flight.NTSB DFW05FA032Accident · Serious injuriesField investigationFinal reportHughes 369D · Zachary, LAThe loss of engine power as a result of fatigue cracking of the compressor adaptor coupling initiated by fretting on the pilot diameter and subsequent disconnection of the compressor from the turbine assembly. A contributing factor was the low operating…NTSB ATL04LA181Accident · Minor injuriesLimited investigationFinal reportHughes HU-369-D · Waynesboro, GAThe tail rotor assembly failed due to a fatigue fracture of the input gearshaft in the tail rotor gearbox assembly, which resulted in a loss of tail rotor control and subsequent collision with trees.NTSB SEA04LA181Accident · No injuriesLimited investigationFinal reportHughes 369D · Cottage Grove, ORIn-flight loss of engine power during cruise for undetermined reasons.NTSB LAX04LA116Accident · No injuriesLimited investigationFinal reportHughes 369D · Wahiawa, HIThe pilot's failure to properly secure the external sling load, which allowed the load to shift, and subsequently strike and remove the tail rotor.NTSB ANC03LA082Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Ketchikan, AKThe improper installation of a bolt in the gas generator governor linkage by company maintenance personnel, which resulted in a loss of the bolt, a loss of engine power while maneuvering, and subsequent forced landing and collision with trees. Factors…NTSB LAX03LA212Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kualapuu, HIthe total loss of engine power resulting from a fatigue failure of the 3rd stage turbine wheel airfoils. The reason for the airfoil's fatigue failure could not be determined.NTSB SEA03LA058Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Taholah, WAThe entanglement of the fuel quantity sender float in the start pump wiring within the fuel tank as a result of the wiring not being properly secured. This rendered the fuel gauge inaccurate and the low fuel warning light inoperative which led to fuel…NTSB SEA03LA021Accident · No injuriesLimited investigationFinal reportHughes 369D · Boise, IDThe failure of the operator's maintenance personnel to properly rig the left/right seat twistgrip throttles to the engine fuel control, the pilot in command's failure to adhere to the rotorcraft flight manual, and the check pilot's premature flare during the…NTSB LAX03LA017Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kaaawa, Oahu, HIDynamic rollover during an attempted takeoff, due to the combined effects of the soft sloping terrain and the pilot's failure to redistribute the passengers to a more favorable lateral CG condition.NTSB CHI02LA285Accident · Minor injuriesLimited investigationFinal reportHughes 369D · O'Neill, NEA loss of engine power due to turbine blade separation as a result of hot corrosion damage to the turbine blades. Contributing to the accident was the pilot misjudging the flare at the completion of the autorotation resulting in a hard landing. The dark night…NTSB SEA02LA135Accident · Serious injuriesLimited investigationFinal reportMcDonnell Douglas 369D · Medford, ORPower loss during cruise flight for undetermined reasons. Factors include mountainous terrain and trees.NTSB NYC02TA123Accident · No injuriesFinal reportHughes 369D · Jeffersontown, KYThe flight instructor's loss of lateral control when his foot slipped off the rudder pedal during a power-off, running landing.NTSB SEA02TA067Accident · No injuriesFinal reportHughes 369D · Richland, WAFailure of the netting material securing a net weight while maneuvering. The net weight was a factor.NTSB LAX02LA007Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kahoolawe Isle, HIInadequate visual surveillance by the pilot before takeoff resulting in liftoff with a deplaning passenger still partially aboard the helicopter. A factor in the accident was the operator's inadequate procedures.NTSB LAX01LA305Accident · No injuriesLimited investigationFinal reportHughes 369D · Carlsbad, CAA hard landing due to the dual student's failure to maintain main rotor speed, his improper landing flare, and the flight control interference by the flight instructor.