NTSB investigations, 1997, WI
180,604 investigations by the National Transportation Safety Board since 1962: 174,583 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 | 24 |
| 2026 | 20 |
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 year(c.\"eventDate\") = 1997
AND c.\"eventStateOrRegion\" = 'WI' AND c.\"eventCountry\" = 'USA'
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 year(c."eventDate") = 1997 AND c."eventStateOrRegion" = 'WI' AND c."eventCountry" = 'USA' 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 CHI98LA061Accident · 1 fatalLimited investigationFinal reportPiper PA-28-140 · Sturtevant, WIThe pilot's misjudgment of altitude/distance and her failure to maintain adequate visual lookout. Also causal was the pilot's failure to maintain adequate obstacle clearance. A contributing factor was the pilot experiencing a visual illusion.NTSB CHI98LA057Accident · No injuriesLimited investigationFinal reportCessna 402A · Milwaukee, WIInadequate preflight planning/preparation, which resulted in fuel exhaustion.NTSB CHI98LA043Accident · No injuriesLimited investigationFinal reportPiper PA-28RT-201T · Janesville, WIthe dual student's failure to obtain the proper touchdown point, and the instructor's failure to provide adequate supervision of the flight. Factors associated with the accident were: inadequate altitude, the student's diverted attention, the snowbank, and…NTSB CHI98LA032Accident · No injuriesLimited investigationFinal reportCessna 421A · Tomahawk, WIthe elevator trim tab bolt backed out, allowing the trim tab to flutter, and destroy the elevator. The factors involved were improper annual inspection by the maintenance personnel, and the inadequate aircraft preflight done by the pilot.NTSB CHI98LA030Accident · No injuriesLimited investigationFinal reportPiper PA-38 · Madison, WIthe flight instructor's (CFI's) inadequate supervision of the flight, and his failure to ensure that control of the airplane was maintained. Factors associated with the accident were: the CFI's improper use of flaps, and subsequent contact with the runway…NTSB CHI98LA026Accident · No injuriesLimited investigationFinal reportLearjet 35A · Sheboygan, WIa deer that ran in front of the airplane during the takeoff phase. A factor in this accident was the lack of an airport perimeter fence to prevent deer from getting onto the runway.NTSB CHI98LA019Accident · No injuriesLimited investigationFinal reportPiper J3L-65 · Reeseville, WIfailure of the normal braking system, due to a low level of brake fluid. Factors relating to the accident were: inadequate inspection of the aircraft by other maintenance personnel, the pilot's failure to check the brakes after brake maintenance/inspection,…NTSB CHI98LA009Accident · No injuriesLimited investigationFinal reportBrown AIR Shark III · Green Bay, WIthe pilot's improper flare, which resulted in a hard landing, subsequent failure of the left main landing gear, and his inability to maintain directional control. Factors related to the accident were: the runway light, and soft terrain.NTSB CHI97LA282Accident · Minor injuriesLimited investigationFinal reportCessna 172M · Portage, WIthe pilot's inadequate preflight preparation, and subsequent fuel exhaustion. Factors relating to this accident were: the guard rail, the highway, and the ditch.NTSB CHI97LA263Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Burlington, WIthe deer which contacted the airplane.NTSB CHI97FA248Accident · 1 fatalField investigationFinal reportValley Adventurers Adventurer 333 · Fond Du Lac, WIThe kit manufacturer's use of inadequate material in construction of the airplane, his inadequate application of quality controls resulting in the debonding of the horizontal stabilizer. Factors were the total loss of the horizontal stabilizer, the elevator,…NTSB CHI97FA252Accident · 2 fatalField investigationFinal reportBeech 76 · New Richmond, WIThe certified flight instructor's inadequate supervision and delayed remedial action and the flight crew's lack of aircraft control. A factor was loss of control while maneuvering downwind by one of the pilot's.NTSB CHI97FA245Accident · 2 fatalField investigationFinal reportPeck Osprey 2 · Poygen, WIA loss of control in flight for undetermined reasons.NTSB CHI97LA251Accident · Serious injuriesLimited investigationFinal reportLarsen T-BIRD II · Oshkosh, WIthe pilot's failure to maintain flying speed and loss of control resulting in a stall. Factors were the tree and the fence.NTSB CHI97LA243Accident · No injuriesLimited investigationFinal reportCessna 182P · Oshkosh, WIwake turbulence from another airplane encountered at an altitude which precluded regaining control of the airplane by the pilot.NTSB CHI97LA244Accident · Minor injuriesLimited investigationFinal reportPiper PA-24-250 · Fond Du Lac, WIthe pilot's improper use of the throttle control friction lock, and his inadequate remedial action. Related factors were his lack of experience in type of aircraft, the pilot's habit interference, and the presence of parked (standing) aircraft.NTSB CHI97LA239Accident · 1 fatalLimited investigationFinal reportBriegleb BG-12A · Superior, WIthe separation of the wing from the glider for undetermined reasons.NTSB CHI97LA246Accident · No injuriesLimited investigationFinal reportYoung RV-4 · Sparta, WIthe pilot's inadequate compensation for wind conditions, and his improper recovery from a bounced landing, which resulted in an improper flare and hard landing. The gusty wind was a related factor.NTSB CHI97LA242Accident · No injuriesLimited investigationFinal reportBoeing B75N1 · Lone Rock, WIa locked right brake which resulted in the pilot's inability to maintain direction control of the airplane during the landing roll.NTSB CHI97LA230Accident · Minor injuriesLimited investigationFinal reportJenkins RV-6 · Middleton, WIthe pilot was too low on final approach and hit the high vegetation.NTSB CHI97LA225Accident · No injuriesLimited investigationFinal reportSorrell SNS-7 · Tomahawk, WIThe pilot encountered a tailplane stall. The factors involved were the pilot conducted a low altitude flight maneuver and encountered engine torque effect.NTSB CHI97LA224Accident · Serious injuriesLimited investigationFinal reportBeech B-23 · Watertown, WIa loss of engine power due to undetermined reason(s).NTSB CHI97LA216Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS 2-8 · Menominee Falls, WIthe slippage of the glider launch equipment (winch). Factors were the pilot's encounter with a stall/spin and the lack of possibility for remedial action to avoid impact with the terrain.NTSB CHI97LA215Accident · No injuriesLimited investigationFinal reportCessna 182 · Chippewa Falls, WIthe pilot's misjudgment of the fuel supply, and subsequent fuel exhaustion.NTSB CHI97LA141Accident · No injuriesLimited investigationFinal reportCessna 172N · Madison, WIthe pilot's inadequate compensation for wind conditions which resulted in a loss of directional control of the airplane. Factors associated with the accident were the gusty, crosswind conditions and the VASI lights.NTSB CHI97LA131Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Sheboygan, WIthe pilot's failure to maintain control of the airplane during the landing roll. A factor associated with the accident was the sudden change in wind conditions.NTSB CHI97LA112Accident · No injuriesLimited investigationFinal reportLuscombe 8E · Wautoma, WIthe pilot's improper use of the throttle. Factors were a crosswind and soft terrain.NTSB CHI97LA099Accident · Minor injuriesLimited investigationFinal reportPiper PA-22 · Oshkosh, WIthe pilot's inadequate compensation for the wind conditions, and his failure to maintain proper runway alignment, which resulted in a subsequent nose over. The gusty crosswind condition was a related factor.NTSB CHI97LA088Accident · No injuriesLimited investigationFinal reportCessna 150J · La Valle, WIthe pilot's inadequate pre-flight planning/preparation which led to fuel exhaustion. A factor was the snow covered terrain.NTSB CHI97LA087Accident · No injuriesLimited investigationFinal reportCessna T210 · Janesville, WIthe pilot inadvertently retracting the landing gear during the takeoff roll.NTSB CHI97FA084Accident · 4 fatalField investigationFinal reportDouglas DC-3C/BT-67R · Newton, WIfailure of the Beech A36 pilot to maintain clearance from the modified Douglas DC-3, while positioning the A36 for photography of the DC-3.NTSB CHI97LA081Accident · No injuriesLimited investigationFinal reportPiper PA-28-181 · Mosinee, WIThe formation of carburetor ice and the instructor pilot's failure to recognize conditions leading to carburetor icing and to take appropriate preventative action. Factors relating to this accident were the late application of carburetor heat, the icing…NTSB CHI97TA070Accident · No injuriesFinal reportCessna 172 · Oconto, WIthe failure of the pilot to maintain proper runway alignment and thus clearance with the snow drifts during takeoff. A factor was the distance the snow drifts extended past the runway edge.