NTSB investigations, 1999, CO
180,641 investigations by the National Transportation Safety Board since 1962: 174,620 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
| 1963 | 1 |
|---|---|
| 1964 | 117 |
| 1965 | 112 |
| 1966 | 149 |
| 1967 | 145 |
| 1968 | 130 |
| 1969 | 123 |
| 1970 | 100 |
| 1971 | 118 |
| 1972 | 91 |
| 1973 | 107 |
| 1974 | 130 |
| 1975 | 104 |
| 1976 | 100 |
| 1977 | 121 |
| 1978 | 118 |
| 1979 | 120 |
| 1980 | 98 |
| 1981 | 94 |
| 1982 | 105 |
| 1983 | 106 |
| 1984 | 94 |
| 1985 | 88 |
| 1986 | 71 |
| 1987 | 95 |
| 1988 | 86 |
| 1989 | 80 |
| 1990 | 78 |
| 1991 | 89 |
| 1992 | 90 |
| 1993 | 71 |
| 1994 | 63 |
| 1995 | 74 |
| 1996 | 85 |
| 1997 | 69 |
| 1998 | 66 |
| 1999 | 86 |
| 2000 | 74 |
| 2001 | 70 |
| 2002 | 73 |
| 2003 | 65 |
| 2004 | 73 |
| 2005 | 75 |
| 2006 | 54 |
| 2007 | 63 |
| 2008 | 60 |
| 2009 | 51 |
| 2010 | 47 |
| 2011 | 54 |
| 2012 | 57 |
| 2013 | 48 |
| 2014 | 49 |
| 2015 | 39 |
| 2016 | 31 |
| 2017 | 34 |
| 2018 | 33 |
| 2019 | 35 |
| 2020 | 44 |
| 2021 | 47 |
| 2022 | 34 |
| 2023 | 38 |
| 2024 | 31 |
| 2025 | 43 |
| 2026 | 44 |
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\" = 'CO' 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" = 'CO' 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 DEN00LA035Accident · Serious injuriesLimited investigationFinal reportPiper PA-22-160 · Brighton, COThe pilot's not following preflight procedures, the starvation of fuel to the engine, and the lack of suitable terrain for a forced landing.NTSB DEN00LA031Accident · Serious injuriesLimited investigationFinal reportLuscombe 8E · San Luis, COThe pilot's inadequate in-flight decision, and the subsequent inadvertent stall/mush. Factors were the pilot's lack of total experience in mountain flying, the high density altitude, and downdraft weather conditions.NTSB DEN00LA029Accident · No injuriesLimited investigationFinal reportBeech N-35 · Englewood, COA forced landing on unsuitable terrain due a complete loss of power. A factor was the pilot inadvertently placing the fuel selector to the off position while executing the approach for landing checklist.NTSB DEN00FA028Accident · No injuriesField investigationFinal reportHughes 369D · Peyton, COan uncontrolled touchdown following entry into a "out-of-ground effect" hover. Factors were loss of tail rotor effectiveness, and the pilot's lack of recent experience in kind of aircraft and total experience in type of aircraft.NTSB DEN00LA024Accident · No injuriesLimited investigationFinal reportCessna 305A · Akron, COThe failure of the four bolts which attach the right main landing gear assembly to the landing gear strut.NTSB DEN00GA022Accident · No injuriesFinal reportBell 206 L-3 · Rifle, COa forced landing on rough, unsuitable terrain. A contributing factor was the partial loss of engine power, which resulted from improper maintenance by repair station personnel.NTSB DEN00FA135Accident · 2 fatalField investigationFinal reportBellanca 17-30 · Lake City, COthe pilot's inadequate flight planning and preparation, and his inadvertent flight into adverse weather during a cross-country flight over mountainous terrain. Contributing factors were, the cloudy obscuration weather condition, the high density altitude, and…NTSB DEN00IA075Incident · No injuriesIncident investigationFinal reportBeech A60 · Boulder, COThe fatigue failure of the #6 cylinder connecting rod cap.NTSB DEN00LA016Accident · No injuriesLimited investigationFinal reportCessna 150E · Longmont, COThe pilot of the other aircraft's failure to follow right-of-way VFR procedures and inadequate visual lookout.NTSB DEN00LA013Accident · No injuriesLimited investigationFinal reportBellanca 8KCAB · Grand Junction, COA failure of the left main landing gear attachment (u-bolt) due to fatigue.NTSB DEN00LA011Accident · No injuriesLimited investigationFinal reportCessna 172B · Englewood, COThe pilot-in-command's failure to maintain directional control of the aircraft during landing roll. Factors were the gusty crosswind and the runway light.NTSB DEN00FA009Accident · 1 fatalField investigationFinal reportCessna 172R · Aspen, COthe pilot's improper decision to fly directly up the center of the valley and not circle climb to gain sufficient terrain clearance altitude. A factor was inadequate route performance planning by the pilot.NTSB DEN00LA004Accident · No injuriesLimited investigationFinal reportCessna 180D · Denver, COThe excessive taxi speed used by the pilot exiting the runway via a high-speed taxiway resulting in a loss of control. A factor was the crosswind.NTSB DEN00LA006Accident · No injuriesLimited investigationFinal reportKendall/Mckaughlin Rans S-10 Sakota · Hudson, COInadequate preflight planning when the pilot failed to evaluate aircraft performance and weather. Factors were high density altitude, and unsuitable terrain for a forced landing.NTSB DEN00LA002Accident · Serious injuriesLimited investigationFinal reportPiper PA-24-250 · La Junta, COThe pilot-in-command's failure to maintain a proper altitude during final approach to landing, and his misjudgment of altitude clearances. Factors were the sudden windshift, downdraft and turbulent weather conditions, the dark night, and the pilot's lack of…NTSB DEN99LA173Accident · No injuriesLimited investigationFinal reportEnstrom 280C · Longmont, COAn inaccurate touchdown during a full autorotation, which resulted in main rotor flex which cut off the tail boom. Factors were the pilot's lack of total experience in helicopters and high density altitude.NTSB DEN99LA172Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Telluride, COAn encounter with a sudden tailwind gust windshift during landing roll, resulting in an inadvertent ground loop.NTSB DEN99LA167Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Rifle, COThe pilot's failure to maintain aircraft control during landing roll. Factors were the strong crosswind weather conditions, and the runway sign that the airplane impacted.NTSB DEN99LA166Accident · No injuriesLimited investigationFinal reportCessna 172G · Delta, COA forced landing due to fuel exhaustion. Factors were inadequate preflight planing, inadequate in-flight planing and rough uneven, unsuitable terrain for a forced landing.NTSB DEN99LA162Accident · No injuriesLimited investigationFinal reportPiper PA-22-135 · Greeley, COThe pilot's inadvertent ground loop during landing roll. Factors were the malfunctioning self centering locking device on the tail wheel, the right rear quartering tail wind, and the 3 to 4 inch high berm along the edge of the runway.NTSB DEN99LA160Accident · Minor injuriesLimited investigationFinal reportBell UH-1H · Silverton, COThe total loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for a forced landing.NTSB DEN99LA159Accident · No injuriesLimited investigationFinal reportCessna 172P · Englewood, COThe pilot's failure to maintain adequate airspeed during the flare for landing/touchdown phase of flight. A factor was a ditch off the side of the runway.NTSB DEN99FA158Accident · 2 fatalField investigationFinal reportWroblewski RV-4 · Bayfield, COThe pilot's failure to maintain control of the aircraft for undetermined reasons.NTSB DEN99FA157Accident · 2 fatalField investigationFinal reportPiper PA-28-181 · Villa Grove, COThe flight instructor's improper inflight decision to enter a narrow blind/box canyon, and his misjudgment of the vertical and lateral clearances. A factor was the downdrafts.NTSB DEN99LA156Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-180 · Peyton, COThe pilot's loss of control resulting in inadvertent stall/mush during initial climb following takeoff. Factors were the unfavorable, sudden windshift conditions, the high density altitude, and the manufacturer's failure to provide adequate density altitude…NTSB DEN99LA155Accident · Minor injuriesLimited investigationFinal reportNorth American SNJ-4 (AT-6) · Mack, COThe pilot misjudging his distance and altitude from the runway. A factor was the tall crops.NTSB DEN99LA152Accident · Serious injuriesLimited investigationFinal reportPiper PA-25 · Salida, COAn inadvertent stall during an aborted landing. A factor was the pilot's selection of the wrong runway for landing.NTSB DEN99LA146Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-260 · Aspen, COThe pilot's inadequate in flight planning. Factors were the high density altitude, the lack of suitable terrain for a forced landing, and the sign post that the right wing impacted.NTSB DEN99LA144Accident · No injuriesLimited investigationFinal reportColeman Lancair IV P · Aspen, COA failure of the right landing gear's brake system. Factors were the improper touchdown point attained by the pilot, the existing weather conditions that included a tailwind and high density altitude, and the rocky ditch.NTSB DEN99LA149Accident · No injuriesLimited investigationFinal reportAir Tractor AT-402A · Mead, COThe pilot's failure to follow proper approach to landing procedures as outlined in the Airplane Flight Manual. A factor was the 6-foot tall corn stalks.NTSB DEN99LA143Accident · No injuriesLimited investigationFinal reportMoore Q-200 · Cortez, COThe pilot's improper recovery from a bounced landing and his failure to maintain directional control. Related factors were the soft wet terrain.NTSB DEN99IA154Incident · No injuriesIncident investigationFinal reportBalloon Works Firefly 9 · Hartsel, COTotal failure of the deflation line due to heat damage (as evidenced by glazing), most likely caused by the improper use of the flight controls (burner system) by person(s) unknown.NTSB DEN99LA140Accident · No injuriesLimited investigationFinal reportPzl-Mielec M-18A · Hasty, COThe pilot's failure to refuel his airplane, and the subsequent airborne fuel exhaustion. Factors were the lack of suitable terrain for a forced landing, and the high vegetation in the field.NTSB DEN99LA138Accident · No injuriesLimited investigationFinal reportCessna TU206A · Durango, COA worn landing nose gear steering system that diminished the ability to steer the airplane. Factors were improper maintenance by unknown persons, and loose gravel.NTSB DEN99LA139Accident · Serious injuriesLimited investigationFinal reportBeech V35B · Elizabeth, COA forced landing on unsuitable terrain following a total loss of power for non mechanical reasons. Factors were the pilot's failure to follow emergency procedures for restarting the engine, operating the aircraft with known deficiencies, and inaccurate…NTSB DEN99IA136Incident · No injuriesIncident investigationFinal reportBeech 1900D · Denver, COSee cause/factor narrative for DEN 99-I-A136A.NTSB DEN99LA135Accident · No injuriesLimited investigationFinal reportCessna 172N · Englewood, COThe unforecasted sudden wind change, and the pilot's failure to maintain aircraft control. A factor was the down sloping terrain next to the runway.NTSB DEN99LA133Accident · Serious injuriesLimited investigationFinal reportMooney M20F · Montrose, COThe pilot's inadequate preflight planning and preparation and his failure to maintain clearance from the signpost. A factor was the signpost.NTSB DEN99LA131Accident · Serious injuriesLimited investigationFinal reportCessna T210F · Fairplay, COA partial loss of engine power due to a partial failure of the turbocharger.NTSB DEN99LA128Accident · No injuriesLimited investigationFinal reportPiper PA-22-150 · Limon, COThe pilot's selection of the wrong runway for takeoff. Factors were a direct tailwind and high density altitude that deteriorated the airplane's climb capability, and unsuitable terrain on which to make a forced landing.NTSB DEN99LA126Accident · Minor injuriesLimited investigationFinal reportPiper PA28-160B · Pueblo, COTotal loss of power during initial climb for undetermined reasons.NTSB DEN99LA125Accident · Minor injuriesLimited investigationFinal reportCessna 172E · Peyton, COThe pilot's failure to maintain directional control of the aircraft during landing touchdown. Factors were the crosswind and the ditch.NTSB DEN99LA124Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Lamar, COThe left brake locked during takeoff roll for undetermined reasons.NTSB DEN99LA122Accident · Serious injuriesLimited investigationFinal reportRader Long EZ · Buena Vista, COThe pilot's failure to maintain control of the airplane. Factors were his unfamiliarity with the airplane, and the soft terrain that caused the airplane to nose over.NTSB DEN99LA121Accident · No injuriesLimited investigationFinal reportCessna 172N · Englewood, COThe flight instructor's failure maintain aircraft control. A factor was the inadequate supervision by the flight instructor.NTSB DEN99LA116Accident · Serious injuriesLimited investigationFinal reportCessna 182B · Watkins, COThe pilot's failure to maintain directional control of the aircraft during landing roll. A related factor was the gusty quartering tailwind.NTSB DEN99FA114Accident · 2 fatalField investigationFinal reportCessna 182J · La Veta, COThe pilot's inadvertent flight into instrument meteorological conditions and his failure to maintain control of the aircraft. Factors were low ceiling and the pilot's lack of instrument experience.NTSB DEN99FA113Accident · 2 fatalField investigationFinal reportPitts S-2B · Steamboat Sprgs, COIntentional aerobatics performed by the pilot at an altitude insufficient to make a safe recovery.NTSB DEN99FA119Accident · 2 fatalField investigationFinal reportPiper PA-22-150 · Coaldale, COThe pilot's failure to maintain control of the airplane for reasons for reasons undetermined.NTSB DEN99LA111Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Boulder, COThe pilot's failure to maintain control of the aircraft during landing roll.