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 per year
| 1964 | 2 |
|---|---|
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 2 |
| 1971 | 3 |
| 1972 | 2 |
| 1973 | 4 |
| 1974 | 3 |
| 1975 | 2 |
| 1976 | 5 |
| 1977 | 6 |
| 1978 | 6 |
| 1979 | 10 |
| 1980 | 12 |
| 1981 | 9 |
| 1982 | 6 |
| 1983 | 6 |
| 1984 | 3 |
| 1985 | 8 |
| 1986 | 9 |
| 1987 | 6 |
| 1988 | 10 |
| 1989 | 14 |
| 1990 | 5 |
| 1991 | 3 |
| 1992 | 3 |
| 1993 | 15 |
| 1994 | 10 |
| 1995 | 4 |
| 1996 | 6 |
| 1997 | 12 |
| 1998 | 14 |
| 1999 | 7 |
| 2000 | 12 |
| 2001 | 10 |
| 2002 | 13 |
| 2003 | 15 |
| 2004 | 8 |
| 2005 | 11 |
| 2006 | 9 |
| 2007 | 9 |
| 2008 | 7 |
| 2009 | 3 |
| 2010 | 5 |
| 2011 | 9 |
| 2012 | 9 |
| 2013 | 9 |
| 2014 | 3 |
| 2015 | 11 |
| 2016 | 6 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 2 |
Where
Open the mapLatest cases
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 WPR26LA270Accident · No injuriesClass 3 · LimitedPreliminary reportEnstrom F-28F · Malad City, IDOn July 21, 2026, about 0815 mountain daylight time, an Enstrom F-28F helicopter, N8624B, was substantially damaged when it was involved in an accident near Malad City, Idaho. The pilot and pilot-rated passenger were not injured. The helicopter was operated…NTSB ERA26LA122Accident · Minor injuriesClass 4 · LimitedFinal reportHughes 269A · Gettysburg, PAThe flight instructor’s failure to identify the excess power required to lift off from soft and muddy ground, which resulted in a loss of control and subsequent collision with a hangar during takeoff.NTSB CEN25LA103Accident · Minor injuriesClass 3 · LimitedPreliminary reportStarduster II · Azle, TXOn February 24, 2025, at 1430 central standard time, a Starduster II airplane, N78WT, was destroyed when it was involved in an accident near Azle, Texas. The private pilot and a passenger received minor injuries. The airplane was operated as a Title 14 Code…NTSB WPR25FA097Accident · 2 fatalClass 3 · FieldPreliminary reportLancair 360 · Marana, AZOn February 19, 2025, about 0828 mountain standard time, a Lancair 360 Mk II, N3602M, was destroyed, and a Cessna 172S, N463ER, sustained minor damage when they were involved in a mid-air collision near Marana Regional Airport (AVQ), Marana, Arizona. The…NTSB CEN25LA003Accident · Minor injuriesClass 3 · LimitedFinal reportSchweizer 269C · Montrose, COA loss of engine power during a demonstrated autorotation due to an improperly adjusted air-fuel mixture or idle setting. Contributing to the accident was the pilot’s failure to perform the required idle check during previous flights in higher elevation areas.NTSB ANC23LA069Accident · No injuriesClass 4 · LimitedFinal reportBellanca 8GCBC · Cordova, AKThe pilot’s exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall and loss of airplane control.NTSB ERA23LA284Accident · Minor injuriesClass 3 · LimitedFinal reportSchweizer 269C · Macclenny, FLThe improper maintenance of the landing gear dampers and main rotor elastomeric dampers, resulting in ground resonance during an unsuccessful takeoff attempt with the helicopter near its maximum gross weight for the density altitude.NTSB ERA23LA289Accident · No injuriesClass 4 · LimitedFinal reportHughes 269A · Anderson, SCThe mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing.NTSB ERA22FA262Accident · 2 fatalClass 3 · FieldFinal reportEnstrom F28 · Greenville, OHAn impact with terrain for undetermined reasons.NTSB ERA22LA210Accident · No injuriesClass 4 · LimitedFinal reportHenderson Clifford S Super Bear CSH-1 · Indiana, PAThe pilot's loss of directional control while landing, which resulted in a ground loop.NTSB ERA22LA180Accident · Minor injuriesClass 4 · LimitedFinal reportHughes 269A · Fort White, FLThe non-instrument-rated pilot’s decision to fly a visual flight rules only helicopter in instrument meteorological conditions, which resulted in a collision with trees and terrain.NTSB ERA21LA357Accident · No injuriesClass 4 · LimitedFinal reportEnstrom F28 · Toughkenamon, PAThe pilot’s failure to maintain control of the helicopter during an out-of-ground effect hover in a gusty wind, due to loss of tail rotor effectiveness.NTSB CEN21LA253Accident · No injuriesClass 4 · LimitedFinal reportSchweizer TH55A/269A · Monroe, LAThe pilot’s failure to maintain yaw control during landing which resulted in a loss of tail rotor effectiveness.NTSB ANC21LA038Accident · No injuriesClass 3 · LimitedFinal reportEnstrom F-28F · Palmer, AKA loss of drive to the rotor system due to the disengagement of the main belt drive tensioning system, which resulted in a forced landing. The disengagement was due to inadequate clearance between the clutch handle and the roll pin in the handle bellcrank…NTSB WPR21LA086Accident · No injuriesClass 3 · LimitedFinal reportHughes 269C · Spanish Fork, UTThe loss of engine power during a practice autorotation for an undetermined reason.NTSB CEN21LA081Accident · No injuriesClass 4 · LimitedFinal reportSchweizer 269C · Rhame, NDThe pilot landed the helicopter on unsuitable terrain, which resulted in a rollover.NTSB WPR20LA190Accident · No injuriesClass 3 · LimitedFinal reportSchweizer 269C · North Las Vegas, NVA total loss of engine power for reasons that could not be determined based on the available information.NTSB CEN20CA240Accident · No injuriesClass 4 · Data collectionFinal reportSchweizer 269C · Sheffield, TXThe pilot's failure to maintain adequate clearance from a fence while hovering.NTSB ERA20CA104Accident · No injuriesData collectionFinal reportSchweizer 269C · Ormond Beach, FLThe student pilot's improper pedal and cyclic input while maneuvering, which resulted in a loss of helicopter control.NTSB GAA19CA596Accident · No injuriesData collectionFinal reportPitts S1 · Reno, NVThe pilot's failure to maintain directional control during landing, which resulted in a runway excursion and a ground loop.NTSB GAA19CA514Accident · No injuriesData collectionFinal reportHughes 269A · Shamokin, PAThe pilot's improper landing flare during an autorotation, which resulted in a hard landing. Contributing to the accident was a loss of engine power for reasons that could not be determined because postaccident examination revealed no evidence of any…NTSB GAA19CA463Accident · No injuriesData collectionFinal reportHughes 269A · Springfield, TNThe pilot’s failure to maintain helicopter control and a loss of tail rotor effectiveness while hover-taxiing and turning toward a taxiway in gusting crosswind conditions, which resulted in a dynamic rollover.NTSB ERA19LA173Accident · No injuriesClass 3 · LimitedFinal reportHughes 269B · Hampton, GAGround resonance during landing for reasons that could not be determined based on the available information.NTSB ERA19TA005Accident · No injuriesFinal reportEnstrom F28 · Bridgeville, DEThe pilot's mismanagement of collective pitch control during takeoff from an area with numerous obstacles, which resulted in the helicopter entering a low rotor rpm state and a forced hard landing.NTSB GAA18CA539Accident · No injuriesData collectionFinal reportSchweizer 269C · Delaware, OHThe pilot’s improper landing flare, which resulted in a hard landing.NTSB WPR18LA170Accident · Minor injuriesClass 3 · LimitedFinal reportSchweizer 269C · Las Vegas, NVThe pilot’s failure to take the appropriate corrective action for ground resonance, which resulted in a loss of helicopter control.NTSB GAA18CA168Accident · Minor injuriesData collectionFinal reportHughes 269 · San Antonio, TXThe pilot’s decision to relinquish the helicopter flight controls to a non-rated passenger during a 3 ft hover.NTSB GAA18CA159Accident · No injuriesData collectionFinal reportHughes 269 · Jacksonville, FLThe pilot’s failure to maintain rotor rpm during a practice autorotation, which resulted in ground contact and a dynamic rollover.NTSB WPR17IA198Incident · No injuriesIncident investigationFinal reportEnstrom F 28F · Glendale, AZAn internal failure of the turbo-compressor, which resulted in oil leaking into the turbo-compressor’s exhaust.NTSB ERA16LA326Accident · Minor injuriesLimited investigationFinal reportHughes 269B · Ozark, ALA total loss of engine power for reasons that could not be determined following a successful postaccident engine run on the accident helicopter.NTSB CEN16FA315Accident · 1 fatalField investigationFinal reportHughes 269C · Howe, TXThe improper execution of an autorotation following the loss of engine power, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor's lack of remedial action during the autorotation.NTSB CEN16FA304Accident · 1 fatalField investigationFinal reportSchweizer 269C 1 · Jeanerette, LAThe pilot's loss of helicopter control for reasons that could not be determined based on available evidence.NTSB CEN16LA303Accident · No injuriesLimited investigationFinal reportHughes 269A · Morris, MNThe pilot's failure to maintain clearance from terrain due to his distraction by the navigation system.NTSB ERA16LA261Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Calhoun, GAThe helicopter owner’s failure to ensure the helicopter’s airworthiness and the inadequate inspection and maintenance of the helicopter's landing gear dampers, which resulted in ground resonance during throttle application. Contributing to the damage of the…NTSB GAA16CA363Accident · No injuriesData collectionFinal reportHughes 269C · Cullman, ALThe helicopter flight instructor candidate's improper execution of the autorotation, resulting in abnormal ground contact and subsequent damage to the vertical stabilizer and tail rotor drive assembly.NTSB CEN16LA084Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Warrenton, MOThe noninstrument-rated pilot's continued flight into instrument meteorological conditions at night, which resulted in the loss of visual reference to the ground and his subsequent failure to maintain clearance from trees.NTSB ERA15LA376Accident · Serious injuriesLimited investigationFinal reportHughes 269 · Eustis, FLThe pilot's failure to maintain yaw control as he slowed the helicopter during a landing approach, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness.NTSB WPR15LA261Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Forest Grove, ORA partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.NTSB WPR15LA245Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Las Vegas, NVA total loss of engine power during a practice autorotation for reasons that could not be determined.NTSB CEN15LA341Accident · Serious injuriesLimited investigationFinal reportHughes 269B · Atkinson, ILThe pilot's improper decision to intentionally fly the helicopter at a low altitude and his subsequent failure to maintain clearance from a power line.NTSB GAA15CA197Accident · No injuriesData collectionFinal reportHughes 269C · Atlanta, TXThe non-helicopter rated pilot's improper landing flare, which resulted in impact with terrain.NTSB WPR15FA205Accident · 2 fatalField investigationFinal reportSchweizer 269C · Newberg, ORThe loss of translation/rotational power between the engine and the transmission due to the severe wear of the forward spline portion of the lower coupling drive shaft. The reason for the severe wear of the forward spline could not be definitively determined…NTSB CEN15CA274Accident · No injuriesData collectionFinal reportEnstrom F 28C · Romeoville, ILThe certified flight instructor (CFI) did not maintain directional control during a downwind emergency running landing to soft muddy terrain, which resulted in a dynamic rollover. Contributing to the accident was the CFI's delayed or insufficient remedial…NTSB GAA15CA061Accident · Minor injuriesData collectionFinal reportHughes TH 55 · Morganton, NCThe flight instructor's delayed flare during a simulated auto rotation, which resulted in a tail rotor strike and rollover.NTSB WPR15CA128Accident · No injuriesData collectionFinal reportEnstrom F28 - C · Shelby, MTThe pilot's failure to maintain main rotor RPM during a low altitude operation, which resulted in a loss of aircraft control and collision with terrain.NTSB CEN15WA162Accident · No injuriesForeign investigationHughes 269A · Oresten, SwedenNTSB CEN14CA513Accident · No injuriesData collectionFinal reportSchweizer 269C · Grand Forks, NDThe flight instructor's inadequate supervision and delayed remedial action during a practice autorotation, which resulted in a tail rotor strike.NTSB CEN14LA269Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Temple, TXGround resonance due to maintenance personnel’s improper inspection of the landing gear dampers, which resulted in the dampers operating outside of allowable limits.NTSB CEN14LA222Accident · Minor injuriesLimited investigationFinal reportHughes 269A · Cleburne, TXThe student pilot's failure to maintain tail rotor clearance from terrain while transitioning to a hover taxi and the instructor pilot's inadequate remedial action to prevent the impending tail rotor contact.NTSB ERA14CA080Accident · Minor injuriesData collectionFinal reportSchweizer 269C · White Plains, NYThe flight instructor's failure to maintain airspeed during a practice autorotation, which resulted in a hard landing and subsequent loss of control