NTSB investigations
320 cases where NTSB found Scheduled/routine maintenance.
Cases per year
| 2008 | 7 |
|---|---|
| 2009 | 14 |
| 2010 | 17 |
| 2011 | 19 |
| 2012 | 20 |
| 2013 | 21 |
| 2014 | 17 |
| 2015 | 24 |
| 2016 | 21 |
| 2017 | 27 |
| 2018 | 20 |
| 2019 | 19 |
| 2020 | 16 |
| 2021 | 15 |
| 2022 | 18 |
| 2023 | 19 |
| 2024 | 22 |
| 2025 | 4 |
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\", '02062010')) 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", '02062010')) 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 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 ERA25LA198Accident · Serious injuriesClass 3 · LimitedFinal reportDiamond Aircraft Ind DA 40 NG · Sanford, NCThe mechanic’s re-use of worm drive clamps, which resulted in a separation of the turbocharger air discharge duct and a partial loss of engine power during initial climb.NTSB ANC25LA028Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · Royal Kunia, HIImproper alteration of the crankshaft propeller flange at an unknown time, which resulted in an in-flight separation of the propeller assembly.NTSB ERA25LA122Accident · No injuriesClass 4 · LimitedFinal reportAllyn Kaste Rans S-19 (KIT) · Doylestown, PAThe pilot’s inadequate maintenance and preflight inspection.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 DCA24LA293Accident · No injuriesClass 4 · LimitedFinal reportBoeing 747-4HQF · Istanbul, TürkiyeThe fatigue failure of multiple hinge ribs associated with the right outboard aileron, which resulted in abnormal aileron movement and airframe vibration. Contributing to the failure was the mis-rigged condition of the right outboard aileron, which increased…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 WPR24LA268Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-34-220T · Minden, NVThe pilot’s improper preflight inspection of the stabilator trim position, which resulted in a porpoised landing. Contributing to the accident was the maintenance personnel’s improper maintenance of the stabilator trim shaft.NTSB ERA24LA330Accident · No injuriesClass 3 · LimitedFinal reportRaytheon A36 · Naples, FLContamination of the airplane’s fuel system with debris, which resulted in restricted fuel flow through multiple fuel injectors and the subsequent partial loss of engine power.NTSB CEN24LA286Accident · No injuriesClass 3 · LimitedFinal reportPiper PA46 · Radisson, WIThe non-certificated mechanic’s failure to properly tighten and torque the fuel system pressure test port cap, which resulted in a total loss of engine power, and a subsequent forced landing.NTSB ERA24LA302Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-32RT-300T · Myerstown, PAThe failure of maintenance personnel to properly secure a B-nut on the No. 5 cylinder fuel injector line, resulting in a fuel leak and engine fire.NTSB CEN24LA236Accident · No injuriesClass 3 · LimitedFinal reportCirrus Design SR22T · Boerne, TXMaintenance personnel’s inadequate adjustment of fuel flow, which resulted in an excessively rich mixture, a rough-running engine, and a subsequent partial loss of engine power.NTSB WPR24LA210Accident · No injuriesClass 3 · LimitedFinal reportLancair LC42-550FG · Humboldt Bay, CAMaintenance personnel’s incorrect installation of an engine rocker cover gasket, which resulted in oil exhaustion and subsequent loss of engine power during the initial climb.NTSB DCA24LA210Accident · No injuriesClass 4 · LimitedFinal reportBoeing 767-316 ER · Milan, INOne or more latches were not fully re-engaged after a service check which resulted in the auxiliary power unit (APU) doors separating from the aircraft during climb out.NTSB WPR24LA198Accident · Minor injuriesClass 3 · LimitedFinal reportWarren B Cox COX Breezy · Albuquerque, NMThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for landing following a partial loss of engine power after takeoff, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was maintenance…NTSB ANC24LA048Accident · No injuriesClass 4 · LimitedFinal reportStinson 108-2 · Bethel, AKThe uncertificated pilot’s decision to fly an unairworthy airplane and his failure to maintain directional control during landing, which resulted in a landing gear collapse. Contributing was the failure of the right main landing gear oleo strut.NTSB CEN24LA184Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-22 · Enderlin, NDThe pilot’s failure to properly inspect and sump the fuel system before the flight and the maintenance personnel’s inadequate maintenance of the fuel system which resulted in fuel starvation and the subsequent loss of engine power due to the contamination of…NTSB ERA24LA198Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Palatka, FLThe failure of the nose oil seal to remain secure in the engine crankcase, which resulted in a loss of engine oil and partial loss of engine power.NTSB ERA24LA190Accident · Minor injuriesClass 3 · LimitedFinal reportBeech B24R · Lumberton Township, NJThe pilot/owner’s failure to ensure adequate maintenance of the airplane, which resulted in a partial loss of engine power during takeoff.NTSB ANC24LA025Accident · No injuriesClass 3 · LimitedFinal reportCessna 120 · Talkeetna, AKA degraded ignition system, which resulted in a total loss of engine power. Contributing to the accident was maintenance personnel’s inadequate inspection of the ignition system.NTSB CEN24LA162Accident · No injuriesClass 3 · LimitedFinal reportAmerican Champion 7ECA · Longview, TXThe rudder post’s failure due to corrosion fatigue. Contributing to the accident were the misalignment of the rudder hinge components, which produced mechanical binding and elevated localized stress, and a compromised the protective coating, which allowed…NTSB ERA24FA157Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-44-180 · Fort Pierce North, FLThe flight instructor’s failure to maintain control of the multiengine airplane after a partial loss of engine power on one engine during a go-around, which resulted in an aerodynamic stall. Contributing to the accident was the mechanic’s failure to check the…NTSB CEN24LA137Accident · No injuriesClass 3 · LimitedFinal reportEnstrom Helicopter 280C · Port Lavaca, TXThe pilot’s improper manual engine mixture management which resulted in a loss of power. Contributing to the accident was the mechanic’s improper setting of the idle mixture adjustment and the pilot’s decision to take off with a known mechanical deficiency.NTSB ERA24LA128Accident · No injuriesClass 3 · LimitedFinal reportCub Crafters PA18-150 · Edgewater, FLMaintenance personnel’s failure to detect the worn aileron cable during the most recent inspections, which resulted in the separation of the aileron control cable and a subsequent loss of airplane control during landing.NTSB ANC24LA017Accident · Serious injuriesClass 3 · LimitedFinal reportMD Helicopter 369E/500E · Kekaha, HIMaintenance personnel’s noncompliance with maintenance manual procedures that required the removal of the overrunning clutch output bearing during the regreasing procedure, which resulted in inadequate regreasing of the bearing and the subsequent failure of…NTSB WPR24LA093Accident · Minor injuriesClass 3 · LimitedFinal reportBell 47G-3B-1 · Garey, CAMaintenance personnel’s failure to properly check the torque paint on a fuel control unit B-nut, which resulted in the loosening of the B-nut, a loss of engine power at a low altitude, and a subsequent impact with terrain.NTSB WPR24LA061Accident · No injuriesClass 3 · LimitedFinal reportGlasair SH2 · Prescott, AZLoss of directional control during landing due to an improperly constructed and maintained tailwheel locking assembly.NTSB CEN24LA036Accident · No injuriesClass 3 · LimitedFinal reportTextron 172S · Erie, COA partial loss of engine power while maneuvering at a low altitude due to a stuck exhaust valve.NTSB CEN24LA011Accident · No injuriesClass 3 · LimitedFinal reportCirrus SR22 · Red Oak, IAThe fatigue failure of the exhaust valve due to excessive combustion deposits, which resulted in a partial loss of engine power. Contributing to the accident was the pilot’s failure to ensure that the required scheduled maintenance was completed.NTSB WPR23LA352Accident · Serious injuriesClass 3 · LimitedFinal reportWayne Toddun Sling 4 TSI · San Pedro, CAA total loss of engine power due to a failure of the No. 4 cylinder exhaust valve from overheating and excessive wear.NTSB WPR23LA350Accident · No injuriesClass 3 · LimitedFinal reportCessna U206C · Challis, IDThe failure of the left main landing gear spring assembly due to a fatigue crack. Contributing to the accident was the improper maintenance on the landing gear spring assembly which allowed corrosion to develop.NTSB WPR23LA349Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172N · Compton, CAThe total loss of engine power on takeoff due to water-contaminated fuel. Contributing to the accident was the inadequately maintained fuel system, which resulted in water entering the fuel tanks through the filler caps.NTSB ANC23LA078Accident · No injuriesClass 3 · LimitedFinal reportRhodes Steven D SR3500 · Nenana, AKA total loss of engine power due to fuel starvation. Contributing was the owner/builder’s inadequate maintenance.NTSB ERA23LA347Accident · No injuriesClass 3 · LimitedFinal reportPiper PA28 · Knoxville, TNAn in-flight fire that resulted from an inadequate 100-hr inspection, which failed to detect and correct improper electrical cable routing in the engine compartment.NTSB ERA23LA293Accident · Minor injuriesClass 3 · LimitedFinal reportHughes 369D · Waldorf, MDFatigue failure of the overrunning clutch outer race and a subsequent inflight loss of power due to abnormal bending loads as a result of improper reassembly of the clutch subassembly following maintenance and the presence of microcracks on the clutch’s outer…NTSB CEN23LA261Accident · No injuriesClass 3 · LimitedFinal reportQuad City Challenger · Cedar Creek, MOA seizure of the power takeoff piston due to inadequate maintenance to the lubrication system, which resulted in a lack of oil lubrication and subsequent engine failure.NTSB WPR23LA197Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 210 · Redding, CAA fuel leak caused by an age-degraded fuel pressure sender hose, which resulted in fuel starvation and a loss of engine power. Contributing to the accident was inadequate maintenance.NTSB ERA23LA218Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-28-180 · Greenville, NCInadequate maintenance by the operator and maintenance personnel, which resulted in a loss of engine power due to oil starvation.NTSB CEN23LA170Accident · No injuriesClass 3 · LimitedFinal reportLuscombe 8F · Palmer, TXThe installation of an unapproved rudder control cable, which resulted in a fatigue failure and subsequent loss of rudder control during cruise flight. Contributing to the accident was the mechanic’s inadequate inspection of the rudder control system.NTSB CEN23LA166Accident · No injuriesClass 3 · LimitedFinal reportProtech PT2 · Columbia, MSThe pilot’s lack of proper maintenance, which allowed the fuel filters to become obstructed, leading to fuel starvation and a subsequent engine power loss.NTSB ERA23LA202Accident · No injuriesClass 3 · LimitedFinal reportRockwell International 112 · Miami, FLFailure of the right main landing gear due to inadequate hydraulic pressure as result of a torn O-ring that was installed on the hydraulic pack’s check valve during overhaul.NTSB ERA23LA197Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 177RG · Crestview, FLThe total loss of engine power due to the loosening and separation of the No. 1 connecting rod cap nuts in flight, resulting in catastrophic internal engine damage. Contributing to the accident was the pilot/owner’s failure to comply with the engine…NTSB ERA23LA144Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28R-200 · Slaughters, KYMaintenance personnel’s failure to secure the fuel strainer bowl with safety wire, which resulted in the fuel strainer bowl leaking and starving the engine of fuel. Also causal was the obstruction of two fuel injector nozzles.NTSB WPR23LA116Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-24-260 · San Jose, CAA landing gear collapse due to an inadequately maintained landing gear extension and retraction system.NTSB CEN23LA103Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 425 · Bismarck, NDA loss of braking due to inadequate servicing of brake fluid by the pilot/mechanic, which resulted in a loss of airplane control on the ground.NTSB CEN23LA025Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Greenville, ILThe mechanic’s failure to inspect and clean the entire fuel nozzle assembly in accordance with the engine maintenance manual, which resulted in fuel starvation and a partial loss of engine power, an autorotation, and a hard landing.NTSB CEN23LA014Accident · No injuriesClass 3 · LimitedFinal reportDiamond Aircraft Ind DA 62 · Dallas, TXA total loss of airplane electrical power for undetermined reasons, which resulted in a complete loss of engine power to both engines. Contributing was the worn main battery and the incorrectly wired ECU backup batteries.NTSB ANC22LA080Accident · 1 fatalClass 3 · LimitedFinal reportCessna 180A · Skwentna, AKThe failure of the landing gear float due to inadequate maintenance of the floats and corrosion.NTSB ERA22LA410Accident · No injuriesClass 3 · LimitedFinal reportCessna U206 · Buckland, AKThe installation of incompatible rocker arms and rocker arm bushings during an engine overhaul, which resulted in a complete loss of engine power.NTSB WPR22LA334Accident · Serious injuriesClass 3 · LimitedFinal reportBuxbaum Mark Edward Long EZ · Medicine Bow, WYA partial loss of engine power due to the fatigue fracture of the No. 4 exhaust valve head.