Final NTSB investigations, WI
180,598 investigations by the National Transportation Safety Board since 1962: 174,578 accidents, the rest incidents and other occurrences. Each has NTSB’s narrative and, once the investigation is done, its probable cause; since 2008, its findings and sequence of events.
Cases per year
| 1964 | 70 |
|---|---|
| 1965 | 75 |
| 1966 | 88 |
| 1967 | 99 |
| 1968 | 81 |
| 1969 | 93 |
| 1970 | 87 |
| 1971 | 65 |
| 1972 | 74 |
| 1973 | 77 |
| 1974 | 81 |
| 1975 | 69 |
| 1976 | 55 |
| 1977 | 75 |
| 1978 | 90 |
| 1979 | 89 |
| 1980 | 62 |
| 1981 | 69 |
| 1982 | 54 |
| 1983 | 60 |
| 1984 | 64 |
| 1985 | 59 |
| 1986 | 55 |
| 1987 | 48 |
| 1988 | 47 |
| 1989 | 56 |
| 1990 | 47 |
| 1991 | 46 |
| 1992 | 39 |
| 1993 | 55 |
| 1994 | 41 |
| 1995 | 41 |
| 1996 | 35 |
| 1997 | 33 |
| 1998 | 44 |
| 1999 | 44 |
| 2000 | 34 |
| 2001 | 46 |
| 2002 | 37 |
| 2003 | 32 |
| 2004 | 37 |
| 2005 | 38 |
| 2006 | 21 |
| 2007 | 32 |
| 2008 | 40 |
| 2009 | 23 |
| 2010 | 26 |
| 2011 | 31 |
| 2012 | 35 |
| 2013 | 18 |
| 2014 | 22 |
| 2015 | 30 |
| 2016 | 28 |
| 2017 | 25 |
| 2018 | 26 |
| 2019 | 19 |
| 2020 | 14 |
| 2021 | 25 |
| 2022 | 23 |
| 2023 | 25 |
| 2024 | 24 |
| 2025 | 22 |
| 2026 | 5 |
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.\"eventStateOrRegion\" = 'WI' AND c.\"eventCountry\" = 'USA'
AND c.\"completionStatus\" = 'Completed'
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."eventStateOrRegion" = 'WI' AND c."eventCountry" = 'USA' AND c."completionStatus" = 'Completed' 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 CEN26LA198Accident · No injuriesClass 4 · LimitedFinal reportCommander 114TC · Woodruff, WIThe pilot’s failure to maintain airplane control during the go-around.NTSB CEN26LA193Accident · No injuriesClass 4 · LimitedFinal reportCessna 140 · Rice Lake, WIThe pilot’s failure to maintain directional control during landing.NTSB CEN26LA138Accident · No injuriesClass 4 · LimitedFinal reportCessna 172M · Solon Springs, WIThe pilot’s loss of directional control during landing, which resulted in a runway excursion and collision with terrain.NTSB CEN26LA125Accident · No injuriesClass 4 · LimitedFinal reportVans RV-12IS · Appleton, WIThe pilot’s failure to maintain proper airspeed during landing and exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and impact with the runway. Contributing to the accident was the flight instructor’s delayed…NTSB CEN26LA121Accident · No injuriesClass 4 · LimitedFinal reportCessna 140 · Antigo, WIThe pilot receiving instruction’s failure to maintain directional control during the landing. Contributing to the accident was the flight instructor’s delayed remedial action.NTSB CEN26LA047Accident · No injuriesClass 4 · LimitedFinal reportEngineering & Research 415 · Sheboygan Falls, WIThe flight instructor’s failure to arrest the airplane’s descent rate during a takeoff simulated engine failure which resulted in a hard landing.NTSB CEN26LA035Accident · No injuriesClass 4 · LimitedFinal reportCessna 172 · Grantsburg, WIThe collision with a white-tail deer during the landing in dark night visual conditions.NTSB CEN26LA025Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-250 · Eau Claire, WIThe pilot’s failure to ensure that the landing gear was properly extended before landing. Contributing to the accident was the pilot’s unfamiliarity with the landing gear warning horn and failure to verify the gear was extended with the cockpit position…NTSB CEN26LA011Accident · No injuriesClass 4 · LimitedFinal reportCirrus Design SR20 · Portage, WIThe student pilot’s failure to maintain proper airspeed and attitude for a short field landing. Contributing to the accident was the flight instructor’s delayed remedial action.NTSB CEN25LA404Accident · No injuriesClass 4 · LimitedFinal reportCirrus SR20 · Watertown, WIThe flight instructor’s failure to maintain control of the airplane following the student pilot’s bounced landing. Contributing to the accident was the flight instructor’s delayed remedial action which resulted in diminished airplane performance during the…NTSB CEN25LA378Accident · No injuriesClass 4 · LimitedFinal reportCirrus Design SR22T · Racine, WIA total loss of engine power for reasons that could not be determined.NTSB CEN25LA345Accident · No injuriesClass 4 · LimitedFinal reportVans RV-12IS · Hartford, WIThe student pilot’s failure to maintain airplane control while landing on a turf runway.NTSB CEN25LA344Accident · No injuriesClass 4 · LimitedFinal reportCessna 210 · Markesan, WIThe pilot’s failure to attain a proper touchdown point which resulted in a long landing and subsequent runway overrun.NTSB CEN25LA293Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31T3 · Appleton, WIThe pilot’s failure to maintain control of the airplane on the ground, which resulted in a collision with a parked airplane.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 CEN25LA279Accident · No injuriesClass 4 · LimitedFinal reportDyke Delta JD-2 · Oshkosh, WIThe pilot’s failure to maintain control of the airplane while landing with a tailwind.NTSB CEN25LA278Accident · No injuriesClass 4 · LimitedFinal reportRavin 500 · Oshkosh, WIThe failure of the left main landing gear lateral pushrod end fitting which resulted in a landing gear collapse during the landing roll.NTSB CEN25LA268Accident · No injuriesClass 4 · LimitedFinal reportCessna 305A · Baraboo, WIThe pilot’s failure to maintain directional control during landing.NTSB CEN25LA259Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-20 · Oshkosh, WIThe pilot’s aggressive brake application which resulted in a loss of directional control and a ground loop.NTSB CEN25LA257Accident · Minor injuriesClass 4 · LimitedFinal reportVan's RV-6 · New Richmond, WIThe pilot’s failure to maintain proper airspeed and altitude during the approach which resulted in a runway overshoot and subsequent landing in a lake. Contributing to the accident was the pilot’s delayed remedial action to abort the landing.NTSB CEN25LA249Accident · No injuriesClass 4 · LimitedFinal reportPiper J3C-65 · Howard, WIThe pilot’s failure to maintain control of the airplane while on approach to land.NTSB CEN25LA220Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Ashland, WIThe pilot’s failure to extend the landing gear before landing and his failure to conduct the before landing checklist.NTSB CEN25LA211Accident · No injuriesClass 4 · LimitedFinal reportCessna U206 · Falun, WIThe pilot experiencing the featureless terrain illusion during the approach which gave the perception that the airplane was at a higher altitude over the glassy water surface than it was, resulting in the airplane impacting the water.NTSB CEN25LA204Accident · No injuriesClass 4 · LimitedFinal reportFlight Design Ctsw · Pembine, WIThe pilot’s improper flare during landing which resulted in a bounced landing.NTSB CEN25LA196Accident · Minor injuriesClass 4 · LimitedFinal reportGallow Daniel A Kitfox Classic IV · Waupaca, WIThe pilot’s failure to maintain adequate air speed during final approach, which resulted in an aerodynamic stall and impact with terrain.NTSB CEN25LA149Accident · Serious injuriesClass 3 · LimitedFinal reportPphu Ekolot KR-030 Topaz · Platteville, WIThe pilot’s failure to maintain clearance from terrain for reasons which could not be determined.NTSB CEN25LA153Accident · No injuriesClass 4 · LimitedFinal reportCessna 185 · Wausau, WIThe pilot’s failure to maintain directional control while landing in shifting wind conditions.NTSB CEN25LA053Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28R-200 · Boscobel, WIThe ice obstruction of the engine oil breather tube and alternate air outlet, which resulted in a failure of the crankcase oil seal and loss of engine oil. Contributing to the accident was the incorrect engine oil breather tube installed in the airplane by…NTSB CEN25LA035Accident · Minor injuriesClass 3 · LimitedFinal reportDe Havilland DHC-1 · East Troy, WIThe pilot’s inadequate fuel management, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident was the inaccurate fuel gauge.NTSB CEN25LA024Accident · No injuriesClass 4 · LimitedFinal reportPitts S-2A · Stoughton, WIThe pilot’s failure to maintain directional control during landing.NTSB CEN24LA379Accident · No injuriesClass 4 · LimitedFinal reportTextron 172S · Janesville, WIThe student pilot’s improper flare and the flight instructor’s delayed remedial action that resulted in a hard, bounced landing.NTSB CEN24LA356Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-12 · Cumberland, WIThe total loss of engine power due to carburetor icing and the pilot’s delayed use carburetor heat in weather conditions conducive to carburetor icing.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 CEN24LA330Accident · No injuriesClass 4 · LimitedFinal reportEsqual VM1 · Oshkosh, WIThe pilot’s premature rotation during takeoff which resulted in the airplane settling back to the runway and the subsequent separation of the left wheel.NTSB CEN24LA322Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-32-260 · Chetek, WIThe pilot’s improper landing flare and hard landing.NTSB CEN24LA299Accident · No injuriesClass 4 · LimitedFinal reportCessna 177A · Palmyra, WIThe student pilot’s failure to maintain directional control during the landing with gusty wind conditions.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 CEN24LA288Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-28R-180 · Ft. Atkinson, WIThe pilot’s failure to extend the landing gear before landing due to distractions and his failure to conduct the Before Landing checklist.NTSB WPR24LA256Accident · No injuriesClass 4 · LimitedFinal reportDiamond Aircraft Ind DA 42 NG · Oshkosh, WIThe pilot’s failure to maintain control during an approach to land, which resulted in a hard landing.NTSB WPR24LA253Accident · No injuriesClass 4 · LimitedFinal reportCanadian Car & Foundry Harvard MK IV · Oshkosh, WIThe pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.NTSB CEN24LA294Incident · No injuriesClass 4 · LimitedFinal reportMooney M20J · Appleton, WIThe pilot’s failure to maintain adequate wingtip clearance while taxiing. Contributing to the accident was the ambiguous nonstandard parking at the time of the incident.NTSB CEN24FA277Accident · 2 fatalClass 3 · FieldFinal reportLancair ES · Oshkosh, WIThe pilot’s failure to maintain adequate airspeed which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall while maneuvering for traffic spacing.NTSB CEN24LA275Accident · Minor injuriesClass 4 · LimitedFinal reportBell 206B · Cuba City, WIThe pilot’s failure to maintain clearance from a wire during an agricultural application pass.NTSB CEN24LA282Accident · No injuriesClass 3 · LimitedFinal reportJust Highlander · Oshkosh, WIThe reported uncommanded retraction of the flaps while on short final for unknown reasons, which resulted in a hard landing.NTSB CEN24LA266Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 172G · West Bend, WIThe pilot’s failure to maintain directional control during the landing roll.NTSB CEN24LA245Accident · Minor injuriesClass 3 · LimitedFinal reportRaytheon A36 · Land O' Lakes, WIA partial loss of engine power for undetermined reasons.NTSB CEN24LA231Accident · No injuriesClass 4 · LimitedFinal reportFoskett James J CH 750 Cruiser · East Troy, WIThe pilot’s failure to maintain directional control during landing in gusting crosswind conditions.NTSB CEN24LA119Accident · Serious injuriesClass 3 · LimitedFinal reportZenith Stol CH750 · Sextonville, WIA loss of engine power for reasons that could not be determined, followed by a loss of control and subsequent impact with terrain.NTSB CEN24LA106Accident · No injuriesClass 4 · LimitedFinal reportCessna 140 · Hayward, WIThe pilot’s loss of control during landing rollout.NTSB CEN24LA097Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Kenosha, WIThe pilot’s failure to maintain control of the helicopter while landing.