Final NTSB investigations
571 cases where the defining event was Sys/Comp malf/fail (non-power).
Cases per year
| 1979 | 1 |
|---|---|
| 2008 | 61 |
| 2009 | 41 |
| 2010 | 35 |
| 2011 | 38 |
| 2012 | 36 |
| 2013 | 36 |
| 2014 | 14 |
| 2015 | 32 |
| 2016 | 18 |
| 2017 | 17 |
| 2018 | 23 |
| 2019 | 18 |
| 2020 | 23 |
| 2021 | 30 |
| 2022 | 41 |
| 2023 | 33 |
| 2024 | 43 |
| 2025 | 23 |
| 2026 | 8 |
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.\"completionStatus\" = 'Completed'
AND c.\"mKey\" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.\"isDefiningEvent\" AND e.\"tier2Number\" = '330')
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."completionStatus" = 'Completed' AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '330') 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 WPR26LA203Accident · No injuriesClass 4 · LimitedFinal reportPzl-Swidnik PW-5 · Soap Lake, WAThe pilot’s failure to ensure the proper preflight assembly of the glider's wing attachment system, which resulted in substantial damage to the wing structure during flight.NTSB ERA26LA189Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-34-220T · Kissimmee, FLFracture of the left main landing gear trunnion during landing, which resulted in a loss of directional control during landing and subsequent runway excursion.NTSB CEN26LA166Accident · No injuriesClass 4 · LimitedFinal reportDiamond Aircraft Ind DA 42 NG · Colorado Springs, COMaintenance personnel's installation of an oversized tire, which prevented the left main landing gear from extending resulting in a precautionary gear up landing.NTSB CEN26LA163Accident · No injuriesClass 4 · LimitedFinal reportTextron T206H · Wichita, KSThe flight crew’s failure to ensure that the rear cargo door was properly latched before flight.NTSB ANC26LA022Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Skwentna, AKThe pilot’s loss of directional control during landing roll due to contact with wind hardened snow berm and subsequent failure of main landing gear.NTSB ERA26LA113Accident · No injuriesClass 4 · LimitedFinal reportCessna 320C · Bartow, FLMaintenance personnel’s failure to perform an adequate inspection of the airplane’s landing gear, which resulted in a collapse of the left main landing gear during landing.NTSB CEN26LA105Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 441 · Pflugerville, TXThe pilot’s failure to maintain airplane control during a rejected takeoff due to a flat nose wheel tire which resulted in a runway excursion and impact with terrain. Contributing to the accident was pilot fatigue which delayed the rejected takeoff.NTSB WPR26LA075Accident · No injuriesClass 4 · LimitedFinal reportMaule M-5-235C · Jay Em, WYThe loss of directional control and subsequent nose over due to the inadvertent engagement of the right wheel parking brake as a result of cabin floor carpeting migrating between the right brake master cylinder and parking brake locking lever.NTSB ERA26LA043Accident · No injuriesClass 4 · LimitedFinal reportBeech 95-B55 · Dothan, ALThe failure of the left main landing gear actuator rods, which resulted in a gear up landing.NTSB ERA26LA028Accident · No injuriesClass 4 · LimitedFinal reportConsolidated Vultee 28-5ACF · Dayton, TNThe collapse of the left main landing gear due to the fatigue fracture of the lower landing gear actuator bolt.NTSB CEN25LA398Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-60-601P · Del Norte, COThe loss of directional control during landing roll due to a flat tire.NTSB CEN25LA392Accident · No injuriesClass 4 · LimitedFinal reportDiamond DA20-C1 · Terre Haute, INThe failure of the nose landing gear strut and associated nosewheel separation during takeoff.NTSB ERA25LA337Accident · No injuriesClass 4 · LimitedFinal reportLarocca Roch B Eracer MK II · Mount Pleasant, SCThe failure of the nose gear actuator bolt during the landing roll, which resulted in the collapse of the nose landing gear and subsequent runway excursion.NTSB WPR25LA300Accident · No injuriesClass 4 · LimitedFinal reportAeronca 7AC · Firebaugh, CAA loss of directional control during landing due to the partial separation of the right main landing gear oleo strut from a failed weld.NTSB ERA25LA339Accident · No injuriesClass 4 · LimitedFinal reportCirrus Design SR20 · Charleston, WVA flat left main landing gear tire, which resulted in a loss of directional control and runway excursion during landing.NTSB CEN25LA333Accident · No injuriesClass 4 · LimitedFinal reportParks Fokker D-VII Replica · Englewood, COA malfunction of the tailwheel which resulted in a runway excursion and ground loop.NTSB DCA25LA275Accident · No injuriesClass 4 · LimitedFinal reportBoeing 737-8 · Denver, COThe failure of the airplane’s left main landing gear tires and wheels during the takeoff roll due to the thermal relief plugs melting and releasing tire pressure, which resulted in abnormal airplane handling characteristics and led the flight crew to reject…NTSB CEN25LA287Accident · No injuriesClass 4 · LimitedFinal reportAerotek Pitts S-2A · New Holstein, WIThe pilot’s loss of direction control during landing due to an unapproved tailwheel assembly and tail spring that resulted in a tailwheel shimmy and a subsequent ground loop.NTSB ANC25LA076Accident · No injuriesClass 4 · LimitedFinal reportCessna 180H · Gulkana, AKThe failure of the left rudder assembly which resulted in a runway excursion and ground loop.NTSB ANC25LA059Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Denali Park, AKThe failure of the left main landing gear spring due to a fatigue fracture during landing on uneven terrain.NTSB ERA25LA223Accident · No injuriesClass 4 · LimitedFinal reportPiper PA22 · Hebron, OHThe airplane owner and pilot’s intentional allowance of unapproved maintenance and maintenance personnel’s failure to adequately maintain or service the brake system, which resulted in a total loss of brake pressure.NTSB CEN25LA174Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-44-180 · Saint James, MNThe failure of the left main landing gear tire casing and tube due to excessive wear which resulted in a loss of directional control during the landing.NTSB WPR25LA178Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-28R-200 · Vancouver, WAA failure of the brake system during landing due to a hydraulic fluid leak, which resulted in a runway excursion.NTSB WPR25LA122Accident · No injuriesClass 3 · LimitedFinal reportBeech C90A · Helena, MTThe failure of the left main landing gear to fully extend and lock as a result of broken downlock switch wires and the failure of the pilots to complete the manual gear extension checklist.NTSB ANC25LA030Accident · No injuriesClass 3 · LimitedFinal reportCessna A185F · Skwentna, AKMaintenance personnel’s reuse of worn hardware during the installation of the landing gear assembly and the hardware’s failure and subsequent separation of the gear leg from the landing gear box assembly during taxi.NTSB ANC25LA021Accident · Minor injuriesClass 3 · LimitedFinal reportGippsland GA-8 · Lihue, HIThe failure of the right landing gear leg due to a fatigue crack, which resulted in its separation from the airplane during taxi. Contributing to the accident, was the mechanic’s inadequate inspection of the landing gear leg during the last maintenance…NTSB WPR25LA102Accident · No injuriesClass 3 · LimitedFinal reportCessna 172S · La Verne, CAThe failure of the right main landing gear tubular spring due to a fatigue crack that originated at the airframe connecting bolt hole and progressed to an overstress fracture.NTSB CEN25LA083Accident · No injuriesClass 4 · LimitedFinal reportRaytheon Hawker 800XP · Minneapolis, MNThe failure of the nose landing gear to extend for undetermined reasons.NTSB ERA25LA100Accident · No injuriesClass 4 · LimitedFinal reportConsolidated Aeronautics Lake LA-4-200 · Orange, MAFailure of the left main landing gear to fully extend and lock for undetermined reasons as a functional test of the landing gear system could not duplicate the anomaly.NTSB ERA25LA096Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-44-180 · Pompano Beach, FLThe separation of the securing hardware for the right main landing gear upper and lower torque links for undetermined reasons, which prevented extension of the right main landing gear.NTSB ERA25LA091Accident · No injuriesClass 3 · LimitedFinal reportHelio HT-295 · Marion, OHThe failure of the right main landing gear spring due to intergranular stress-corrosion cracking that progressed into fatigue. Contributing to the accident was the improper rework of the spring at an undetermined time.NTSB WPR25LA059Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1(PT17) · El Cajon, CAThe pilot’s inability to maintain directional control during landing with a flat tire.NTSB ANC25LA009Accident · No injuriesClass 3 · LimitedFinal reportCessna 180 · Egegik, AKA failure of the right main landing gear leg for reasons that could not be determined.NTSB ERA25LA068Accident · No injuriesClass 4 · LimitedFinal reportDiamond Aircraft Ind DA 42 NG · Daytona Beach, FLThe maintenance technician’s failure to follow the manufacturer’s recommended procedures during a wheel and tire change to ensure proper clearance of the tire to the wheel well resulting in the right main wheel becoming stuck in the well and subsequent…NTSB CEN25LA013Accident · Minor injuriesClass 3 · LimitedFinal reportRotorway Exec · Plymouth, INA loss of control due to the failed forward tail rotor belt as a result of the owner’s failure to follow the helicopter manufacturer’s tail rotor belt replacement recommendations.NTSB CEN25LA007Accident · No injuriesClass 3 · LimitedFinal reportMooney M20E · Richmond, TXThe partial separation of a portion of the propeller spinner and its mounting bulkhead along with the upper cowl fairing while in a full-power climb.NTSB CEN25LA002Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-402A · Moffett, OKThe tail wheel assembly’s fractured bolt which resulted in the pilot’s loss of directional control during landing.NTSB WPR24LA319Accident · No injuriesClass 3 · LimitedFinal reportBell 206L · Fern Prairie, WAAn aeroelastic interaction between the helicopter’s main rotor blades and nodal beam system, which resulted in oscillations that exceeded the design limits of the tailboom. Contributing to the accident was the failure of the main rotor blade manufacturer to…NTSB ERA24LA385Accident · No injuriesClass 4 · LimitedFinal reportCessna 195 · Dyersburg, TNFailure of the tailwheel strut, which resulted in a loss of directional control during landing roll and a runway excursion.NTSB ERA24LA386Accident · No injuriesClass 3 · LimitedFinal reportCessna 402 · Boston, MAThe failure of a solid hydraulic fluid line, which resulted in a loss of hydraulic fluid that prevented the landing gear extension process from completing normally. Contributing to the outcome was the pilot’s failure to fully activate the emergency landing…NTSB CEN24LA358Accident · No injuriesClass 3 · LimitedFinal reportHughes 369 · Canton, MIFatigue cracking of the main rotor blade that occurred at an undetermined time.NTSB CEN24LA342Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28R · Crystal, MNThe failure of the engine mount under normal operating loads due to the fracture of a vertical tube that was weakened by corrosion and fatigue of the internal surfaces.NTSB CEN24LA337Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · East Troy, WIThe pilot/mechanic’s improper torquing of the fuel hose fitting while replacing the fuel pump, which allowed air to enter the fuel system and resulted in a loss of engine power during initial climb. Contributing to the accident was the pilot/mechanic’s…NTSB ANC24LA077Accident · No injuriesClass 3 · LimitedFinal reportRobinson R44 · Honolulu, HIA failure of the flex plate yoke flange assembly due to incorrectly torqued bolts. Contributing was the maintenance personnel’s inadequate inspection of the tail rotor flex plate assembly.NTSB WPR24LA275Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-30 · Concord, CAThe failure of the main landing gear to extend and lock for reasons that could not be determined based on the available information. Contributing to the accident was a mechanical failure of the manual landing gear release mechanism due to inadequate clearance…NTSB ERA24LA331Accident · Minor injuriesClass 3 · LimitedFinal reportAero Commander 200 · Valdosta, GAAn insect nest in the right main fuel tank’s vent line, which resulted in an inaccurate fuel level reading, fuel starvation, and a total loss of engine power.NTSB CEN24LA271Accident · Serious injuriesClass 3 · LimitedFinal reportMcdonnell Douglas Helicopter 600N · Eagle Lake, TXThe operator’s improper installation of the fuel system, which resulted in fuel starvation, a loss of engine power, and impact with terrain.NTSB CEN24LA268Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-28-181 · Arcola, TXLoss of engine power due to fuel starvation as a result of the mechanic’s failure to properly secure the fuel system gascolator strainer bowl following an annual inspection.NTSB CEN24LA261Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT602 · Decatur, ILThe pilot’s inability to maintain directional control during the landing roll due to the malfunction of the tail wheel locking mechanism.NTSB CEN24LA315Accident · No injuriesClass 3 · LimitedFinal reportGrumman American Avn. AA-5B · Camdenton, MOThe inadequate maintenance of the seat locking mechanism, which resulted in the pilot’s seat sliding back during takeoff and a subsequent loss of control.