RotorAlert
IncidentsMechanical failure
Probable cause

Mechanical failure helicopter accidents

Incidents caused by failure of aircraft systems, components, or structure — including engine failures, rotor system failures, and other technical malfunctions.

Total incidents
147
Confirmed fatalities
24
Fatal incidents
10
Fatal rate
6.8%
Most affected countries
Most affected aircraft
Bell21 incidents
Robinson19 incidents
Airbus Helicopters10 incidents
Leonardo7 incidents
Eurocopter4 incidents
DateLocationAircraftFatalitiesSeveritySource
2025-03-15🇬🇧Marston Doles, Warwickshire, United KingdomWestland Wasp HAS1seriousAAIB
2023-11-15🇺🇸Chesterfield, United StatesBell 407unknownNTSB CAROL
2023-08-27🇺🇸Hibbing, United StatesBell 206unknownNTSB CAROL
2023-08-26🇺🇸Immokalee, United StatesRobinson R44seriousNTSB CAROL
2023-08-01🇺🇸North Charleston, United StatesBell 407minorNTSB CAROL
2022-10-27🇺🇸Sarasota, United StatesRobinson R44unknownNTSB CAROL
2022-10-08🇺🇸Fort Myers, United StatesBell 505seriousNTSB CAROL
2022-10-01🇺🇸Fresno, United StatesBell 206BseriousNTSB CAROL
2022-09-29🇺🇸Nashville, United StatesRobinson R22 BETAminorNTSB CAROL
2022-08-03🇺🇸Chino, United StatesAirbus Helicopters AS350B3unknownNTSB CAROL
2022-07-27🇺🇸Hollywood, United StatesRobinson R22 MARINERminorNTSB CAROL
2022-07-22🇺🇸Waterloo, United StatesRobinson R44 IIunknownNTSB CAROL
2022-07-19🇺🇸Madison, United StatesGuimbal Cabri G2unknownNTSB CAROL
2022-07-06🇺🇸Becker, United StatesHiller UH-12EseriousNTSB CAROL
2022-06-23🇺🇸Boonville, United StatesSchweizer 300CunknownNTSB CAROL
2022-06-17🇺🇸Stockton, United StatesBell 206BunknownNTSB CAROL
2022-06-13🇬🇧Norwich Airport, United KingdomLeonardo AW139unknownAAIB
2022-06-11🇺🇸Butler, United StatesWALTER S JOHNSON III AR-1unknownNTSB CAROL
2022-05-19🇺🇸Palm Beach, United StatesEurocopter AS355unknownNTSB CAROL
2022-05-13🇺🇸Rochester, United StatesMBB BK 117 B-2unknownNTSB CAROL
2022-04-26🇺🇸Elba, United StatesBell 4292fatalNTSB CAROL
2022-04-05🇺🇸Hawley, United StatesRobinson R22unknownNTSB CAROL
2022-03-25🇺🇸Rowlett, United StatesRobinson R442fatalNTSB CAROL
2022-01-23🇺🇸Gustine, United StatesBell UH-1EunknownNTSB CAROL
2022-01-07🇬🇧Lydd Airport, Kent, United KingdomLeonardo AW189minorAAIB
2021-07-30🇬🇧Near Heads of Ayr, South Ayrshire, United KingdomLeonardo AW189minorAAIB
2021-04-02🇬🇧Near Ledbury, Herefordshire, United KingdomRotorway Executive 162FminorAAIB
2021-03-04🇬🇧3 nm south-east of Porthcawl, Wales, United KingdomLeonardo AW189minorAAIB
2020-12-07🇬🇧Nottingham City Airport, Nottinghamshire, United KingdomGrob G115AminorAAIB
2020-09-23🇬🇧Aberdeen Airport, United KingdomAirbus Helicopters EC175 BminorAAIB
2020-09-17🇬🇧West Dean, Salisbury, Wiltshire, United KingdomWestland Scout AH1minorAAIB
2020-07-02🇬🇧Boscombe Down Airfield, Wiltshire, United KingdomAgusta A109EminorAAIB
2019-12-14🇺🇸San Antonio, United StatesRobinson R44minorNTSB CAROL
2019-12-11🇺🇸Riverton, United StatesEnstrom F-28minorNTSB CAROL
2019-12-07🇺🇸Gulf of Mexico, United StatesBell 4072fatalNTSB CAROL
2019-11-16🇺🇸Penobscot, United StatesAgusta A109unknownNTSB CAROL
2019-10-13🇺🇸Susanville, United StatesHiller UH-12EminorNTSB CAROL
2019-09-11🇺🇸Azusa, United StatesSikorsky S-58unknownNTSB CAROL
2019-08-16🇺🇸Blair, United StatesBell 206minorNTSB CAROL
2019-08-11🇺🇸Allentown, United StatesSchweizer 269CseriousNTSB CAROL
2019-07-27🇺🇸Blair, United StatesRobinson R44minorNTSB CAROL
2019-07-27🇺🇸Eugene, United StatesMD Helicopters 369seriousNTSB CAROL
2019-07-22🇬🇧Wycombe Air Park, United KingdomGuimbal Cabri G2minorAAIB
2019-07-13🇺🇸Mosby, United StatesBell 47G-3B-1seriousNTSB CAROL
2019-06-27🇬🇧In flight North of Seaton, Cornwall, United KingdomAgusta A109EminorAAIB
2019-06-17🇺🇸Key West, United StatesRobinson R44unknownNTSB CAROL
2019-05-28🇺🇸Brewster, United StatesSikorsky UH19minorNTSB CAROL
2019-05-15🇺🇸New York, United StatesBell 206unknownNTSB CAROL
2019-04-29🇺🇸Kailua, United StatesRobinson R443fatalNTSB CAROL
2019-04-16🇺🇸Fort McDowell, United StatesBell 2062fatalNTSB CAROL
2019-02-26🌐Owen Roberts International Airport, Cayman Islands, Cayman IslandsAirbus Helicopters EC135 T1seriousAAIB
2019-02-18🇺🇸Eureka, United StatesAirbus Helicopters AS350unknownNTSB CAROL
2019-01-02🇬🇧Melksham Airbase, Wiltshire, United KingdomBell 429 GlobalRangerunknownAAIB
2018-10-27🇺🇸Passaic, United StatesRotorWay 162unknownNTSB CAROL
2018-10-27🇬🇧Leicester, United KingdomAgustaWestland AW1695fatalWikipedia
2018-10-17🇺🇸Fulton, United StatesRobinson R221fatalNTSB CAROL
2018-08-30🌐Owen Roberts International Airport, Grand Cayman, Cayman IslandsAirbus Helicopters AS 350minorAAIB
2018-08-29🇺🇸Girdwood, United StatesRobinson R44unknownNTSB CAROL
2018-08-19🇺🇸Hilo, United StatesEurocopter EC130minorNTSB CAROL
2018-08-03🇺🇸Midland, United StatesBrantly B-2unknownNTSB CAROL
2018-07-16🇺🇸New Castle, United StatesBell 206unknownNTSB CAROL
2018-07-14🇺🇸Stewartstown, United StatesSchweizer 269DminorNTSB CAROL
2018-07-10🇬🇧Aberdeen Airport, United KingdomAirbus Helicopters EC175BseriousAAIB
2018-07-02🇺🇸Aguilares, United StatesSAFARI 400seriousNTSB CAROL
2018-06-13🇬🇧Loch Scadavay, North Uist, Western Isles, United KingdomAirbus Helicopters AS350B2 Ecureuil1fatalAAIB
2018-06-08🇬🇧Goodwood Aerodrome, Sussex, United KingdomGuimbal Cabri G2seriousAAIB
2018-06-07🇺🇸FORT MORGAN, United StatesRobinson R44 IIunknownNTSB CAROL
2018-06-05🇺🇸Sanders, United StatesBell 206minorNTSB CAROL
2018-05-29🇺🇸Wikieup, United StatesMcDonnell Douglas 369FFunknownNTSB CAROL
2018-05-18🇺🇸Yakutat, United StatesAerospatiale AS350B2unknownNTSB CAROL
2018-05-06🇬🇧Offshore from Aberdeen, United KingdomLeonardo AW139minorAAIB
2018-05-02🇺🇸Iron Station, United StatesMosquito MOSQUITO XEminorNTSB CAROL
2018-04-05🇬🇧Morpeth, Northumberland, United KingdomAirbus Helicopters EC135 P2+seriousAAIB
2018-03-05🇺🇸Sheboygan, United StatesMBB BK 117 B-2unknownNTSB CAROL
2018-02-19🌐Pacific Ocean, Marshall IslandsHughes 369DminorNTSB CAROL
2018-02-10🇺🇸Peach Springs, United StatesEurocopter EC1305fatalNTSB CAROL
2018-02-01🇺🇸Wrightwood, United StatesHughes 369unknownNTSB CAROL
2018-01-29🇺🇸Zebulon, United StatesBell OH-58CunknownNTSB CAROL
2018-01-27🇺🇸Pomeroy, United StatesHughes 369D1fatalNTSB CAROL
2018-01-08🇺🇸Albany, United StatesRobinson R44 IIunknownNTSB CAROL
2018-01-04🇺🇸Norfolk, United StatesBell 407unknownNTSB CAROL
2017-11-27🇬🇧Sywell Aerodrome, Northamptonshire, United KingdomLeonardo AW109SP Grand NewseriousAAIB
2017-11-22🇺🇸Woodlawn, United StatesHughes 300unknownNTSB CAROL
2017-11-07🇺🇸Rolling Fork, United StatesBell 206minorNTSB CAROL
2017-10-26🇺🇸La Paloma, United StatesAirbus Helicopters EC130unknownNTSB CAROL
2017-10-13🇺🇸Arbuckle, United StatesWESTERN INTERNATIONAL AVIA INC UH 1HunknownNTSB CAROL
2017-09-11🇺🇸Griffith, United StatesHiller UH-12AunknownNTSB CAROL
2017-09-01🇺🇸Lawrenceville, United StatesMD Helicopters 369seriousNTSB CAROL
2017-08-18🇺🇸Fairhope, United StatesBellanca 7ACAminorNTSB CAROL
2017-08-17🇬🇧Wellesbourne, Warwickshire, United KingdomAirbus Helicopters EC120B ColibriminorAAIB
2017-08-02🇺🇸Jupiter, United StatesSikorsky S-97AminorNTSB CAROL
2017-08-02🇬🇧Private landing site near Clifton Dykes, Penrith, Cumbria, United KingdomLeonardo AW109SP Grand NewminorAAIB
2017-07-19🇺🇸Ontario, United StatesEnstrom F-28CseriousNTSB CAROL
2017-07-08🇮🇪IrelandRobinson R44seriousNTSB CAROL
2017-07-06🇺🇸Big Lake, United StatesBell 47D1unknownNTSB CAROL
2017-07-04🇺🇸Easton, United StatesRobinson R44unknownNTSB CAROL
2017-07-02🇺🇸Bella Vista, United StatesRobinson R44seriousNTSB CAROL
2017-06-30🇺🇸Kelso, United StatesRobinson R22unknownNTSB CAROL
2017-06-26🇺🇸Entiat, United StatesBell 206BunknownNTSB CAROL
2017-05-25🇺🇸Peach Springs, United StatesEurocopter EC130unknownNTSB CAROL

Showing 100 most recent of 147 total incidents.

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