NTSB investigations, 1999, WY
180,630 investigations by the National Transportation Safety Board since 1962: 174,609 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 | 47 |
|---|---|
| 1965 | 52 |
| 1966 | 50 |
| 1967 | 55 |
| 1968 | 47 |
| 1969 | 53 |
| 1970 | 42 |
| 1971 | 34 |
| 1972 | 38 |
| 1973 | 45 |
| 1974 | 37 |
| 1975 | 42 |
| 1976 | 38 |
| 1977 | 48 |
| 1978 | 45 |
| 1979 | 34 |
| 1980 | 43 |
| 1981 | 40 |
| 1982 | 47 |
| 1983 | 44 |
| 1984 | 32 |
| 1985 | 20 |
| 1986 | 31 |
| 1987 | 16 |
| 1988 | 22 |
| 1989 | 14 |
| 1990 | 18 |
| 1991 | 21 |
| 1992 | 18 |
| 1993 | 24 |
| 1994 | 24 |
| 1995 | 15 |
| 1996 | 16 |
| 1997 | 12 |
| 1998 | 21 |
| 1999 | 21 |
| 2000 | 20 |
| 2001 | 17 |
| 2002 | 16 |
| 2003 | 19 |
| 2004 | 16 |
| 2005 | 17 |
| 2006 | 13 |
| 2007 | 13 |
| 2008 | 18 |
| 2009 | 4 |
| 2010 | 9 |
| 2011 | 26 |
| 2012 | 18 |
| 2013 | 15 |
| 2014 | 11 |
| 2015 | 14 |
| 2016 | 10 |
| 2017 | 11 |
| 2018 | 13 |
| 2019 | 11 |
| 2020 | 9 |
| 2021 | 5 |
| 2022 | 13 |
| 2023 | 6 |
| 2024 | 16 |
| 2025 | 9 |
| 2026 | 13 |
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\") = 1999
AND c.\"eventStateOrRegion\" = 'WY' 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") = 1999 AND c."eventStateOrRegion" = 'WY' 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 DEN00LA026Accident · No injuriesLimited investigationFinal reportCessna 421C · Gillette, WYThe collision with a deer on the runway during a night landing. A factor was the dark night.NTSB DEN00FA021Accident · 2 fatalField investigationFinal reportPiper PA-18-125 · Afton, WYFailure of the pilot to remove frost from the wings prior to takeoff, causing an inadvertent stall/spin on initial climbout. Factors included exceeding the aircraft's certificated gross weight, and fog conditions.NTSB DEN00LA020Accident · No injuriesLimited investigationFinal reportCessna 210D · Sheridan, WYThe partial failure of the engine driven hydraulic pump.NTSB DEN00LA018Accident · No injuriesLimited investigationFinal reportCessna 172N · Rawlins, WYThe pilot's inadequate preflight planning preparation which resulted in fuel exhaustion. Factors in the accident were the unsuitable terrain on which to make a forced landing and the pilot's lack of experience in aircraft type.NTSB DEN99FA148Accident · 4 fatalField investigationFinal reportGrumman American AA-5 · Newcastle, WYThe pilot's inadequate visual lookout and inadequate altitude/clearance from the transmission wires.NTSB DEN99LA147Accident · No injuriesLimited investigationFinal reportCessna 180H · Gillette, WYThe pilot's inadvertent ground loop during landing roll.NTSB DEN99LA134Accident · No injuriesLimited investigationFinal reportCessna 170B · Casper, WYThe pilot's selection of a wrong runway for landing and his failure to maintain directional control.NTSB DEN00LA109Accident · No injuriesLimited investigationFinal reportBeech A23-24 · Wheatland, WYThe flight instructor's failure to maintain control of the aircraft. Factors were inadequate supervision of the student by the flight instructor and inaccurate judgment by the flight instructor in not having the aircraft examined following the event.NTSB DEN99LA130Accident · Minor injuriesLimited investigationFinal reportAmerican AA-1 · Centennial, WYThe pilot's failure to consult the airplane performance charts and allowing the airplane to exceed its climb performance. Factors were high density altitude conditions and a downdraft.NTSB DEN99LA112Accident · No injuriesLimited investigationFinal reportMooney M20C · Big Piney, WYThe pilot's failure to maintain directional control of the aircraft during landing touchdown. A related factor was the gusty crosswind.NTSB DEN99FA109Accident · 1 fatalField investigationFinal reportBoeing Stearman A75 · Carpenter, WYPilot incapacitation for unknown reasons.NTSB DEN99LA096Accident · No injuriesLimited investigationFinal reportCessna 177RG · Cheyenne, WYThe pilot's inadequate flight planning, and lack of suitable terrain for the forced landing. Factor's were the pilot's inadequate aircraft preflight, and the subsequent engine power loss due to fuel exhaustion.NTSB DEN99LA092Accident · Minor injuriesLimited investigationFinal reportHughes 269A · Parkman, WYThe pilot's inadequate in-flight planning by exceeding the helicopter's performance climb capability. Factors were the downdraft encountered during initial climb following takeoff, and the high density altitude.NTSB DEN99LA089Accident · Minor injuriesLimited investigationFinal reportDehaan Challenger II · Douglas, WYThe pilot's failure to maintain directional control of the aircraft by not adequately correcting for torque/p-factor during initial climb following takeoff.NTSB DEN99LA084Accident · No injuriesLimited investigationFinal reportEnstrom 280C · Baggs, WYThe pilot not maintaining the main rotor's RPM. Factor's were the high density altitude, and the mountainous/hilly terrain.NTSB DEN99FA075Accident · 2 fatalField investigationFinal reportPiper PA-11 · Lander, WYThe pilot inadvertently stalling the airplane. Factors were his abrupt maneuvering of the airplane to avoid a powerline, and his attention being diverted.NTSB DEN99LA074Accident · No injuriesLimited investigationFinal reportPiper PA-28-180 · Burlington, WYThe pilots' inadequate preflight planning for take off in that he failed to consider the takeoff surface not being a paved surface. A factor was loose material on the roadway used for take off.NTSB DEN99LA061Accident · No injuriesLimited investigationFinal reportMooney M20K · Medicine Bow, WYA fluctuating turbine inlet temperature and resulting loss of engine power for undetermined reasons. Factors were the rough, unsuitable terrain on which to make a forced landing.NTSB DEN99LA056Accident · No injuriesLimited investigationFinal reportAero Commander 200D · Evanston, WYA total loss of engine power for undetermined reasons.NTSB DEN99LA040Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Baggs, WYA hard landing resulting from rotor rpm decay. Factors were the improper replacement of the turbine by company maintenance personnel resulting in the PC line nut becoming loose, and the pilot operating outside the normal height/velocity curve.NTSB DEN99LA036Accident · No injuriesLimited investigationFinal reportCessna 208B · Cody, WYThe pilot's inability to maintain aircraft control due to unfavorable winds conditions.