NTSB investigations: Lycoming HIO-360 series
390 cases on aircraft whose registry engine model is Lycoming HIO-360 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41524'))
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.engine_model_code IN ('41524'))
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 LAX02LA169Accident · Serious injuriesLimited investigationFinal reportEnstrom F-28C · Stockton, CAThe pilot's failure to maintain an adequate clearance from the water tower during takeoff. Also causal was the pilot's selection of a confined area for the landing and subsequent takeoff.NTSB LAX02LA161Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Phoenix, AZthe CFI's failure to maintain an adequate airspeed resulted in a settling with power, and the CFI's failure to take remedial action. A factor in the accident was the high density altitude.NTSB SEA02LA075Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Hot Springs, MTThe pilot's failure to adequately compensate for unfavorable wind conditions. Factors include unfavorable/shifting winds, and a tailwind gust.NTSB LAX02LA137Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Scottsdale, AZThe flight instructor's inadequate remedial action following the onset of ground resonance.NTSB FTW02LA104Accident · No injuriesLimited investigationFinal reportHughes 269A-1 · Fort Collins, COthe flight instructor's failure to maintain control of the helicopter while hovering. Contributing factors were the tailwind and gusty wind conditions.NTSB MIA02LA070Accident · No injuriesLimited investigationFinal reportHughes 269C · Bessemer, ALThe failure of the flight instructor to adequately monitor the student's rotorcraft control, resulting in an abrupt cyclic input causing a tail rotor strike of the terrain while entering a hover, and the resulting rollover during an uncontrolled descent.NTSB NYC01LA206Accident · Minor injuriesLimited investigationFinal reportSchweizer 300C · Cicero, NYThe pilot's failure to maintain directional control while hovering, and the CFI's delayed remedial action.NTSB IAD01LA095Accident · No injuriesLimited investigationFinal reportHughes 269C · Lewiston, NYThe pilot's failure to maintain rotor rpm during the simulated forced landing. Also causal in the accident was the failure of both pilots to recognize the total loss of engine power and the CFI's inadequate remedial actions. A factor in the accident was the…NTSB CHI01FA257Accident · 2 fatalField investigationFinal reportSchweizer 269C · Waterloo, INAircraft control not maintained for undetermined reasons.NTSB CHI01LA215Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Walker, MNthe loss of engine power for undetermined reasons during takeoff. Factors were the vehicles, the unsuitable terrain the pilot encountered, and the low altitude of the helicopter at the time of the loss of engine power.NTSB NYC01LA167Accident · Minor injuriesLimited investigationFinal reportHughes 269A · Clay, NYFailure of the left aft cluster fitting due to a fatigue crack. Factors in the accident were the mechanic's failure to identify the crack at the last annual inspection, and the pilot's failure to identify the crack during the last daily inspectionNTSB MIA01LA153Accident · Minor injuriesLimited investigationFinal reportEnstrom F28A · Double Springs, ALThe failure of the pilot to maintain clearance between the skid and trailer while attempting to lift from a trailer resulting in dynamic roll-over.NTSB FTW01LA103Accident · Serious injuriesLimited investigationFinal reportJoe Underwood Lazer Z · Bossier City, LAthe pilot's failure to maintain control during the low level maneuver. A contribiting factor was the windshear.NTSB LAX01LA121Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Ojai, CAA loss of engine power for undetermined reasons.NTSB LAX01LA120Accident · Minor injuriesLimited investigationFinal reportEnstrom F-28C · Hollister, CAthe pilot's inadequate use of the antitorque controls and subsequent failure to maintain directional control of the helicopter during the takeoff initial climb.NTSB MIA01LA097Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Orlando, FLa fire due to a broken and separated turbocharger exhaust which allowed hot exhaust to ignite the engine shroud.NTSB LAX01LA053Accident · No injuriesLimited investigationFinal reportHughes 269C · Carlsbad, CAThe CFI's inadequate supervision and failure to maintain control of the helicopter during a practice autorotation. A contributing factor was the student's improper in-flight planning/decision.NTSB SEA01LA003Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Twin Falls, IDThe pilot's failure to maintain adequate rotor rpm. Unsuitable terrain was selected for the maintenance test flight operation.NTSB LAX00TA355Accident · No injuriesFinal reportHughes TH-55A · Phoenix, AZthe flight instructor's misjudged flare during a simulated autorotation, which led to a hard landing.NTSB LAX00LA276Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Cave Creek, AZThe pilot's inadequate in-flight planning/decision to attempt a hover in atmospheric conditions and over terrain that would require maximum helicopter performance, and which would leave no viable alternate actions in the event of difficulties.NTSB IAD00LA056Accident · Minor injuriesLimited investigationFinal reportEnstrom F28C · Ravenna, OHthe student pilot's loss of helicopter control after suffering a stroke in flight.NTSB IAD00LA052Accident · Minor injuriesLimited investigationFinal reportHughes 269A · Mansfield, NJThe pilot's failure to comply with published emergency procedures. A factor in the accident was the pilot's inadequate preflight planning which resulted in a take-off with the inadequate amount of fuel for the flight.NTSB LAX00LA226Accident · No injuriesLimited investigationFinal reportHughes 269C · Santa Clarita, CASettling with power precipitated by a wind direction change during the approach to land sequence and the check pilot's delayed remedial action to correct the event. Factors in the accident were crew resource management coordination concerning flight control…NTSB SEA00LA103Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Kennewick, WAThe pilot's exceedance of the helicopter's hovering capabilities in a downwind hover. Factors included tailwind conditions, the pilot's lack of experience in the type of operation being conducted, and trees in the area where the helicopter settled.NTSB DEN00LA083Accident · No injuriesLimited investigationFinal reportHughes 269C · Loveland, COThe pilot misjudged the run on landing during a full autorotation. Factors were a total loss of power for unknown reasons and soft terrain.NTSB LAX00LA181Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Rialto, CAThe student's misjudged altitude and failure to maintain rotor rpm while practicing an autorotation, and, the instructor's delayed remedial corrective action and inadequate supervision of the flight.NTSB MIA00GA121Accident · 2 fatalFinal reportHughes 269C · Del Rio, TXAn in-flight loss of control while maneuvering for undetermined reasons resulting in an in-flight collision with terrain. A factor in the accident was the in-flight loss of engine power and rotor rpm.NTSB FTW00LA105Accident · No injuriesLimited investigationFinal reportSchweizer 300C · New Ulm, TXThe pilot's inadequate in-flight evaluation of the landing area, which resulted in the separation of the main rotor system as a result of foreign object damage.NTSB MIA00GA057Accident · Serious injuriesFinal reportHughes OH-6A · Fort Myers, FLimproper maintenance inspection of the helicopter by unknown maintenance personnel, resulting in a worn control rod bearing being continued in service, and subsequent separation, resulting in an in-flight loss of control and a crash.NTSB SEA00FA014Accident · 1 fatalField investigationFinal reportEnstrom F28C · Pendleton, ORFailure to maintain clearance from the runway surface while maneuvering at low altitude, and inadequate remedial action after the tail rotor struck the surface.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 SEA99FA168Accident · 1 fatalField investigationFinal reportSchweizer 269C · Westport, ORThe pilot's failure to maintain clearance from terrain. Factors include low clouds and visibility and near-night light conditions.NTSB DEN99LA092Accident · Minor injuriesLimited investigationFinal reportHughes 269A · Parkman, WYThe pilot's inadequate in-flight planning by exceeding the helicopter's performance climb capability. Factors were the downdraft encountered during initial climb following takeoff, and the high density altitude.NTSB SEA99LA048Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Pendleton, ORA loss of power due to water contamination of the fuel. Factors include the inability of the helicopter to perform a successful autorotation immediately after takeoff.NTSB NYC99LA082Accident · Serious injuriesLimited investigationFinal reportSchweizer 269C · Westerville, OHThe failure of the pilot to maintain control of the helicopter.NTSB CHI99LA006Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Oshkosh, NEthe pilot's failure to maintain control of the helicopter. Factors associated with the accident were the high winds, low altitude at which the pilot was maneuvering and the uneven terrain which the helicopter contacted.NTSB CHI98LA332Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Decker, INThe pilot's failure to maintain obstacle clearance resulting in a collision with a fence.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 MIA98LA221Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Marco Island, FLThe pilot's inadequate fuel management which led to fuel exhaustion. A related factor was the pilot's improper use of the flight controls during autorotation.NTSB ANC98LA109Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Skwentna, AKA loss of engine power due to a fractured number three cylinder intake manifold flange, and the pilot's inability to maintain the proper rate of descent during the autorotation flare. A contributing factor associated with the accident was the downwind…NTSB FTW98LA279Accident · No injuriesLimited investigationFinal reportSchweizer 269C · San Angelo, TXThe improper touchdown executed by the flight instructor, which resulted in the tail rotor impacting the ground.NTSB CHI98LA166Accident · No injuriesLimited investigationFinal reportEnstrom F28 · West Chicago, ILthe student pilot attempting a tailwind landing and improper compensation for the wind resulting in too high of a sink rate and the hard landing.NTSB ATL98LA065Accident · No injuriesLimited investigationFinal reportSchweizer 269C · San Juan, PRThe pilot's failure to adequately secure the cargo strap which became entangled in the tail rotor, leading to a loss of the tail rotor control. This was followed by an improperly executed emergency procedure and an in-flight collision with the ground. A…NTSB ANC98LA037Accident · Minor injuriesLimited investigationFinal reportEnstrom F-28F · Haines, AKThe pilot flaring too low during an improper practice autorotation.NTSB MIA98LA127Accident · No injuriesLimited investigationFinal reportSchweizer 269-C · Ormond Beach, FLThe CFI's inadequate supervision and poor communication which led the rated student pilot to roll the throttle off, and the CFI's subsequent failure to apply forward cyclic to increase airspeed which resulted in the subsequent hard landing and roll over.NTSB SEA98FA055Accident · No injuriesField investigationFinal reportEnstrom F28F · Baker, ORFatigue failure of the steel tubing pylon structure. Factors include inadequate inspection by maintenance personnel of damage after a previous accident.NTSB FTW98LA129Accident · No injuriesLimited investigationFinal reportEnstrom F-28C-2 · Broomfield, COwater contamination in the fuel, which resulted in loss of engine power and a forced (autorotative) landing. Factors relating to the accident were: darkness; and a high obstruction in the emergency landing area.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 ATL98LA021Accident · No injuriesLimited investigationFinal reportHughes TH-55 · Bushnell, FLThe pilot's failure to maintain clearance from the trees during a hover. A factor was the pilot's diverted attention.