NTSB investigations
28 cases where NTSB found Main rotor control.
Cases per year
| 2008 | 3 |
|---|---|
| 2009 | 2 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f.\"findingCode\", '01046710')) 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01046710')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run 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 CEN24FA248Accident · 1 fatalClass 3 · FieldFinal reportRotorway Scorpion 133 · Andale, KSThe pilot’s abrupt control inputs, which resulted in a low-G condition, main rotor mast bumping, and subsequent severing of the tailboom by the main rotor blades.NTSB WPR24LA134Accident · No injuriesClass 3 · LimitedFinal reportBell 206L-3 · Tracy, CAA loss of collective control authority due to fatigue failure of the collective servo cylinder extension arms from corrosion pitting.NTSB CEN23LA199Accident · No injuriesClass 4 · LimitedFinal reportBell Helicopter Textron Canada 407 · Abbeville, LAThe pilot’s failure to maintain proper helicopter control during autorotation that resulted in an abnormal ground contact which caused the subsequent main rotor strike on the tail boom that severed the tail rotor driveshaft. Contributing to the accident was…NTSB CEN23FA183Incident · 1 fatalClass 3 · FieldFinal reportRobinson R22 Beta · Brady, TXThe non-certificated pilot’s failure to ensure the collective friction control was adequately engaged during an on-ground engine run, which resulted in the helicopter inadvertently becoming airborne. Contributing to the crash were the pilot’s various physical…NTSB ERA23FA070Accident · 2 fatalClass 3 · FieldFinal reportRobinson Helicopter R44 · Charlotte, NCThe inadequate inspections of the forward left control rod end attachment hardware to the stationary swashplate by the pilot and by maintenance personnel, resulting in an eventual loosening and backing out of the hardware and subsequent loss of helicopter…NTSB CEN22LA430Accident · No injuriesClass 3 · LimitedFinal reportAgusta AW139 · Houma, LAThe inflight loss of collective control of the helicopter due to thermal damage of a collective control torque tube that abraded with misrouted electrical wiring, which resulted in an electrical short and inflight fire. Contributing to the accident were the…NTSB CEN20LA037Accident · No injuriesClass 3 · LimitedFinal reportRobinson R22 · Beeville, TXThe solo student pilot's improper cyclic input during takeoff, which resulted in dynamic rollover.NTSB ERA19FA034Accident · 2 fatalField investigationFinal reportAutogyro Cavalon · Sebring, FLThe pilot's improper decision to operate the gyroplane in an unairworthy condition, which resulted in the cyclic pitch control disconnecting in flight. Contributing was the pilot's inability to maintain control of the helicopter utilizing the published…NTSB GAA18CA086Accident · No injuriesData collectionFinal reportHalley KFT Apollo · North Las Vegas, NVThe pilot’s failure to stop the main rotor rotation before taxiing the gyroplane in gusting wind conditions, resulting in the main rotor striking the empennage.NTSB WPR18LA004Accident · No injuriesClass 3 · LimitedFinal reportWestern International Avia UH 1H · Arbuckle, CAA collective control malfunction for reasons that could not be determined.NTSB GAA17CA258Accident · Minor injuriesData collectionFinal reportAutogyro Calidus · Stevensville, MDThe pilot’s improper takeoff procedure, which resulted in a loss of directional control during the takeoff.NTSB GAA17CA218Accident · No injuriesData collectionFinal reportBell 206 · La Verne, CAThe pilot’s early increased application of the collective during a simulated hovering autorotation, which resulted in a loss of rotor rpm and subsequent main rotor blade strike of the tailboom.NTSB ERA16FA248Accident · 1 fatalField investigationFinal reportBell Helicopter Textron Canada 407 · Hickory, KYCompany maintenance personnel's inappropriate removal without replacement of the safety wires on the collective lever pin screws during a recent maintenance inspection, which resulted in the screws backing out and led to a loss of collective control in flight.NTSB WPR16LA099Accident · Minor injuriesClass 3 · LimitedFinal reportBell 47G 5 · San Ardo, CAThe failure of the pin in the outboard end of the lateral flight control torque tube.NTSB GAA16CA163Accident · No injuriesData collectionFinal reportEnstrom F280 · Sodus, NYThe pilot's improper collective application at touchdown during a practice run-on landing, which resulted in the main rotor system impacting the tailboom and the forward portion of the fuselage impacting terrain during remedial action by the flight…NTSB GAA15LA296Accident · No injuriesLimited investigationFinal reportBell 206 · Ozark, ALThe pilot's failure to maintain clearance from terrain while hovering, which resulted in the helicopter's skid impacting terrain, subsequent abnormal airframe vibrations, and a hard landing during the subsequent hovering autorotation.NTSB GAA15CA258Accident · No injuriesData collectionFinal reportAirbus AS350 · Draper, UTThe ground recovery team member's failure to secure a rescue rope during the helicopter loading process in steep terrain, resulting in the rope fouling the helicopter's main rotor system.NTSB GAA15CA181Accident · No injuriesData collectionFinal reportRobinson Helicopter R22 Beta · Caldwell, IDAbnormal ground contact during a 180 degree autorotation, resulting in a severed tail rotor driveshaft by a main rotor blade. A factor contributing to the accident was the rotor blowback condition due to the aft tilting of the main rotor disk.NTSB ANC15LA076Accident · No injuriesClass 3 · LimitedFinal reportAirbus AS-350 · Hamilton, MTThe pilot's excessive collective application during an autorotation. Contributing to the accident was the flight instructor's inadequate supervision of the training flight.NTSB CEN15LA131Accident · No injuriesLimited investigationFinal reportBell-Watson 47 G · North Little Rock, ARThe flight instructor’s failure to maintain adequate rotor rpm during the practice touchdown autorotation, which resulted in a subsequent loss of helicopter control and impact with terrain.NTSB CEN13CA027Accident · No injuriesData collectionFinal reportAerospatiale SA315B · Helena, OKThe pilot's failure to properly secure the cyclic and to stop the main rotor system before exiting the helicopter, which resulted in the main rotor blades striking the tail rotor driveshaft.NTSB CEN11LA200Accident · No injuriesLimited investigationFinal reportHughes 369D · Henryetta, OKFailure of the cyclic control system for reasons undetermined.NTSB CEN10IA397Incident · No injuriesIncident investigationFinal reportBell 206 · Gulf of Mexico, LAImproper reassembly of the collective flight controls by maintenance personnel. Contributing to the incident were inadequate postmaintenance examinations by maintenance personnel and inadequate preflight inspections by two pilots.NTSB WPR09FA459Accident · 2 fatalField investigationFinal reportRobinson Helicopter R22 Beta · Forest Grove, ORThe flight crew’s failure to maintain adequate main rotor speed while maneuvering, which resulted in a main rotor blade stall and an uncontrolled descent into terrain.NTSB WPR09LA261Accident · No injuriesLimited investigationFinal reportEnstrom Helicopter 280C · Ogden, UTThe pilot's improper use of the helicopter's collective both during the takeoff sequence and while attempting remedial action in response to an engine over-boost condition, which resulted in a hard precautionary landing.NTSB WPR09LA028Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Powder River, WYA flight control system malfunction while the helicopter was maneuvering at low altitude due to the failure/separation of the rotor blade control tube.NTSB CHI08TA239Accident · No injuriesFinal reportEurocopter AS-350-B3 · Mount Clemens, MIThe pilot's unintentional lowering of the collective control during approach to land, resulting in a hard landing.NTSB DFW08TA092Accident · No injuriesFinal reportRobinson R44 · Topeka, KSA malfunctioning magneto, resulting in a high engine rpm and low rotor warning indications. A contributing factor was the impact with a light pole, during the precautionary landing.