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 DFW07CA037Accident · No injuriesData collectionFinal reportHughes 269B · Houma, LAA partial loss of engine power as a result of a cracked engine cylinder and broken spark plug which resulted in a hard landing. A factor was that it was not possible to attain proper rotor RPM.NTSB LAX06LA290Accident · No injuriesLimited investigationFinal reportSchweizer 269C-1 · Van Nuys, CAInadequate maintenance adjustment and missing mixture spring, which resulted in a loss of engine power during approach.NTSB CHI06CA168Accident · No injuriesData collectionFinal reportSchweizer 269C · Grand Forks, NDThe dual student's failure to maintain rotor speed during the recovery from the intentional autorotation and the flight instructor's delayed remedial action. Contributing factors were the flight crew's intentional autorotation and dual student's misjudged…NTSB CHI06TA148Accident · Minor injuriesFinal reportSchweizer 269C · Schererville, INThe pilot's improper autorotation following an actual loss of engine power during a practice autorotation, which resulted in a hard landing. A factor associated with the accident was the loss of engine power at the beginning of the practice autorotation for…NTSB CHI06LA138Accident · 1 fatalLimited investigationFinal reportHughes 269A · Berlin Center, OHThe pilot flew at a low altitude and failed to maintain clearance from the wire. A factor was the wire.NTSB ATL06LA085Accident · No injuriesLimited investigationFinal reportHughes 269A · Concord, NCThe loss of engine power for undetermined reasons while maneuvering, resulting in a forced landing to uneven terrain and a roll over.NTSB SEA06LA096Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Boise, IDThe reduction of the throttle to idle at a high density altitude during a practice autorotation, which resulted in the engine stoppage. Factors contributing to the accident included the instructor pilot's improper planning by not adhering to the flight…NTSB CHI06CA131Accident · No injuriesData collectionFinal reportSchweizer 269C · Lees Summit, MOThe flight instructor's delay in taking remedial action which led to the hard landing during the practice autorotation. The misjudged glide path, the dual student restricting the throttle control, and the trees were factors in the accident.NTSB NYC06LA106Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Kings Park, NYLoss of engine power due to the failure of the number 3 connecting rod bearing. A contributing factor was the lack of suitable terrain for the emrgency landing.NTSB CHI06TA033Accident · No injuriesFinal reportSchweizer 269C · Manhattan, KSThe binding of the main rotor blade's tachometer cable during cruise flight resulting in an observed split tachometer indication/aural alarm and perceived mechanical emergency and the unsuitable terrain the pilot encountered during the emergency landing. A…NTSB MIA06CA013Accident · No injuriesData collectionFinal reportSchweizer 269C-1 · Titusville, FLThe pilot-in-command's improper flare during a practice autorotative landing, which resulted in a hard landing.NTSB NYC06CA008Accident · No injuriesData collectionFinal reportEnstrom F-28C · Smoketown, PAThe student pilot's failure to maintain aircraft control while performing pedal turns at a hover, resulting in a collision with terrain.NTSB SEA05CA149Accident · Minor injuriesData collectionFinal reportHughes 269A · Laurel, MTthe pilot's failure to maintain rotor rpm while executing a pinnacle approach, which resulted in a loss of control and collision with terrain.NTSB DFW05CA168Accident · No injuriesData collectionFinal reportHughes 269C · Bruceville, TXThe flight instructor's improper flare during autorotation, which resulted in a hard landing. Contributing factor was, the lack of suitable terrain.NTSB DEN05FA080Accident · Serious injuriesField investigationFinal reportSchweizer 269C · Pueblo, COthe flight instructor's failure to maintain control of the helicopter during the attempted autorotation after the loss of engine power for reasons undetermined. Contributing factors include the flight instructor's improper preflight planning, the high density…NTSB IAD05LA075Accident · Minor injuriesLimited investigationFinal reportHughes TH-55 · Paintsville, KYthe pilot's inadvertent encounter with ground resonance which resulted in destruction of the helicopter.NTSB DEN05CA079Accident · No injuriesData collectionFinal reportSchweizer 269C · Pueblo, COthe student pilot's failure to maintain control of the helicopter during the landing. Contributing to the accident was the flight instructor's inadequate supervision of the student pilot.NTSB SEA05CA083Accident · No injuriesData collectionFinal reportHughes 269A · Whitefish, MTThe student pilot's failure to maintain control of the helicopter while hovering resulting in an in-flight collision with terrain. Gusting winds and the student pilot's inadequate compensation for the wind conditions were contributing factors.NTSB DEN05LA068Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Morrison, COthe pilot's failure to maintain rotor RPM during the approach which resulted in a landing short of the helipad.NTSB IAD05LA046Accident · Serious injuriesLimited investigationFinal reportSchweizer 269C · Leet, WVA fatigue fracture of the main transmission drive pinion. Also causal was the manufacturer's failure to remove the affected pinions from service during the period that transpired between the initial failures and the accident flight.NTSB LAX05LA050Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Ontario, CAa loss of engine power due to the Designated Pilot Examiner's failure to follow the flight manual procedures and directives regarding throttle settings to be used for practice autorotations.NTSB LAX05LA039Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Rialto, CAthe pilot's failure to maintain adequate rotor rpm and altitude/clearance during the takeoff initial climb.NTSB MIA05CA006Accident · No injuriesData collectionFinal reportSchweizer 269C · Diamond Head, MSThe pilot's inadvertent loss of tail rotor effectiveness during takeoff to a hover and aborted landing in a grass area resulting in the grass catching fire from the engine exhaust and the helicopter being consumed by fire.NTSB NYC05CA008Accident · No injuriesData collectionFinal reportHughes 269C · Minerva, OHThe pilot's failure to maintain control of the helicopter during liftoff.NTSB FTW04LA212Accident · Minor injuriesLimited investigationFinal reportEnstrom F-28F · De Leon, TXThe pilot's failure to properly secure a fuel line, which resulted in a loss of engine power due to leakage and subsequent fuel starvation.NTSB SEA04LA128Accident · No injuriesLimited investigationFinal reportHughes 269C · Arlington, WAA significant power loss for undetermined reasons while in cruise flight, leading to a full autorotational landing. Factors include no suitable terrain in the area, and soft swampy terrain at the point where the pilot found it necessary to perform the forced…NTSB DEN04CA092Accident · No injuriesData collectionFinal reportSchweizer 269C · Englewood, COthe settling with power situation encountered by the pilot. Contributing to the accident was the high density altitude.NTSB IAD04LA013Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Media, PAA lack of previous lubrication to the tail rotor drive shaft forward fitting teeth, which resulted in their gradual wear, the eventual slippage of the shaft, and the subsequent loss of tailrotor thrust and forced landing.NTSB NYC04LA051Accident · Serious injuriesLimited investigationFinal reportSchweizer 269C-1 · Byron, NYThe pilot's improper use of the collective, and failure to maintain main rotor rpm, which resulted in low main rotor rpm and a hard landing.NTSB CHI04LA032Accident · Serious injuriesLimited investigationFinal reportHughes TH-55A · West Lafayette, INThe fractured cluster fitting resulting in a loss of directional control during initial climb and the improper repair of cluster fitting by unknown personnel. The night conditions were a contributing factor.NTSB CHI04LA030Accident · Minor injuriesLimited investigationFinal reportHughes 269B · Louisville, KYThe pilot's improper in-flight decision to allow the passenger to manipulate the aircraft flight controls, his failure to maintain altitude/clearance from the river, and his inadequate remedial action. A related factor was the low altitude.NTSB CHI04IA018Incident · No injuriesIncident investigationFinal reportEnstrom F-28C · Lapeer, MIComplete failure of the right anti-torque cable while on final approach for landing. A factor was the diminished tail rotor control resulting from the broken cable.NTSB CHI04LA015Accident · 1 fatalLimited investigationFinal reportSchweizer 269C · Fenton, MIThe intentional low altitude flight maneuvering and the ostentatious display by the pilot. The water was a factor to the accident.NTSB LAX03CA264Accident · No injuriesData collectionFinal reportHughes 269C · Columbia, CAthe student pilot's improper execution of the autorotation. Also causal, was the CFI's delayed remedial action and supervision of the flight.NTSB FTW03TA190Accident · Minor injuriesFinal reportHughes 269A · Freer, TXLoss of engine power for undetermined reasons.NTSB SEA03LA151Accident · No injuriesLimited investigationFinal reportHughes 269C · Snohomish, WAThe dual students failure to maintain clearance from the terrain during the go-around from a simulated autorotational flare, and the instructor pilot's failure to take adequate remedial action to keep the dual student from allowing the aircraft to impact the…NTSB CHI03LA217Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Waverly, IAThe main rotor blade push-pull rods being corroded, sustaining fatigue, and separating in cruise and the main rotor blade contacting the tail boom during the emergency landing. Factors were the diminished aircraft control and the vibrations encountered during…NTSB DEN03LA115Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Bountiful, UTthe pilot not maintaining aircraft control during the aerial taxi. Factors contributing to the accident were the oscillating cyclic, the pilot's diverted attention, and the gusting crosswind.NTSB DEN03FA090Accident · 1 fatalField investigationFinal reportHughes 269C · Watkins, COfailure of both pilots to initiate a timely recovery from a practice autorotation. A contributing factor was the instructor's inadequate supervision of the pilot receiving instruction.NTSB NYC03LA106Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · New Canaan, CTThe inadequate annual inspection performed by maintenance facility personnel, which resulted in a failure of a fuel system bellcrank. Factors were the subsequent inadequate inspections by other maintenance personnel and the pilot.NTSB LAX03FA134Accident · 2 fatalField investigationFinal reportHughes 269B · Auburn, CAthe misjudged flare maneuver by an unknown crewmember during a likely practice autorotation that resulted in an in-flight collision with terrain.NTSB FTW03LA122Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Monroe, LAThe pilot's failure to maintain control of the helicopter. A contributing factor was the crosswind.NTSB LAX03FA060Accident · 1 fatalField investigationFinal reportSchweizer 269C · Collinsville, CAA loss of engine power for undetermined reasons, and the pilot's failure to maintain main rotor rpm during the subsequent autorotation. A factor in the accident was the unsuitable nature of the terrain for a forced landing.NTSB LAX03LA052Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Los Banos, CAThe improper engine overhaul by other maintenance personnel, which resulted in an exhaust valve failure and a total loss of engine power while in maneuvering flight.NTSB DEN03LA018Accident · Minor injuriesLimited investigationFinal reportEnstrom F-28C · Morrison, COthe pilot not maintaining clearance from the telephone lines during landing. Factors contributing to the accident were the pilot not being able to see the telephone lines, the low altitude, and the dark night.NTSB CHI02LA293Accident · No injuriesLimited investigationFinal reportHughes 269A · Council Bluffs, IAThe premature fracture of the cyclic/mixture bracket resulting in the inability to conduct a landing flare.NTSB DEN02LA098Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Broomfield, COmaintenance personnel's failure to secure the landing skid oleo strut bolt during the last 50-hour inspection, causing the left rear skid to collapse and the tail rotor to strike the ground.NTSB ATL02LA159Accident · Serious injuriesLimited investigationFinal reportSchweizer 300C · Haleyville, ALThe failure of maintenance personnel to perform an adequate inspection of loose intake components, which resulted in a total loss of engine power and subsequent emergency descent, forced landing, and collision with terrain in dark night conditions.NTSB SEA02LA150Accident · No injuriesLimited investigationFinal reportHughes 269A · Covington, WAAircraft control not maintained while hovering.NTSB ATL02LA141Accident · No injuriesLimited investigationFinal reportHughes HU-269-A · Hamilton, ALThe pilot's improper use of flight controls that resulted in an improper flare and a hard landing during a practice autorotation. A factor was the loss of rotor rpm.