NTSB investigations, 1998, CO
180,616 investigations by the National Transportation Safety Board since 1962: 174,594 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 | 43 |
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\") = 1998
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") = 1998 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 DEN99LA030Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-181 · Rollinsville, COThe pilot's inadequate decision to continue flight into deteriorating weather conditions, that included a downdraft which resulted in a loss of control, and collision with terrain. Contributing factors were the pilot's lack of familiarity with the terrain,…NTSB DEN99LA028Accident · Serious injuriesLimited investigationFinal reportBurkhart Grob G103 Twin Astir · Canon City, COThe glider pilot's failure to follow proper preflight procedures, and his failure to control the aircraft when the latch opened during flight. A factor was his failure to properly latch the canopy, and to utilize all available runway during the forced landing.NTSB DEN99LA027Accident · No injuriesLimited investigationFinal reportBoeing 727-233 · Denver, COSnow removal not done by other person.NTSB DEN99LA026Accident · No injuriesLimited investigationFinal reportPiper PA-46-350P · Granby, COThe in-flight encounter with clear air turbulence during descent.NTSB DEN99LA025Accident · Serious injuriesLimited investigationFinal reportCessna 182RG · Glenwood Spring, COThe pilot's failure to maintain directional control. A contributing factor is his inadequate recovery from a bounced landing.NTSB DEN99LA021Accident · No injuriesLimited investigationFinal reportChampion 7GCAA · Aurora, COThe pilot's failure to maintain directional control. Factors were the gusty crosswind and terrain.NTSB DEN99LA020Accident · No injuriesLimited investigationFinal reportPiper PA-28-161 · Erie, COThe shorting of the aluminum battery wire and the subsequent failure of the fuel line. Factors were the weak/deteriorated battery, the insufficient information in the airplane's POH about charging an airplane's battery, and the fire in the crew compartment.NTSB DEN99FA016Accident · 1 fatalField investigationFinal reportPiper PA-31-350 · Hayden, COThe pilot not following instrument procedures and subsequently descended to minimums prematurely. Factors were the mountainous terrain and the falling snow.NTSB DEN99LA015Accident · Serious injuriesLimited investigationFinal reportMooney M20C · Englewood, COThe undertorquing of the camshaft gear retaining bolts during engine overhaul by maintenance personnel. A factor was the unsuitable terrain for a forced landing.NTSB DEN99FA009Accident · 4 fatalField investigationFinal reportPiper PA-28-181 · Montrose, COThe pilot's improper inflight planning/decision. Factors were a reduction in the airplane's climb and turn capabilities, the aft c.g. limit being exceeded, and the pilot's lack of familiarity with the geographic area and his lack of experience in the airplane…NTSB FTW98LA416Accident · No injuriesLimited investigationFinal reportCessna 551 · Pueblo, COThe pilot's delayed flare, improper recovery from a bounced landing, and failure to maintain directional control. A factor was the rough uneven terrain.NTSB FTW98LA412Accident · No injuriesLimited investigationFinal reportCessna 152 · Durango, COImproper maintenance by an unknown person and the subsequent throttle cable disconnect due to a castellated nut separation. Factors were the none suitable soft terrain for the forced landing, and the failure of the nose wheel landing gear during the landing…NTSB FTW98FA392Accident · Serious injuriesField investigationFinal reportPiper PA-20-180 · Thornton, COThe separation of a propeller blade due to corrosion initiated fatigue, followed by the separation of several of the engine's mounts, and the subsequent inability of the pilot to control the aircraft. A contributing factor was the trees.NTSB FTW98LA398Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Watkins, COGusting winds which blew the aircraft inverted during taxi.NTSB FTW98FA394Accident · 2 fatalField investigationFinal reportGrumman American AA-1B · Yoder, COThe pilot's loss of aircraft control due to not maintaining adequate airspeed and the subsequent inadvertent stall. Factors were the pilot's inadequate preflight and the engine's power failure due to fuel exhaustion.NTSB FTW98LA387Accident · No injuriesLimited investigationFinal reportCessna 172M · Englewood, COThe pilot's failure to maintain directional control during landing. Factors were the runway light and the terrain conditions.NTSB FTW98FA378Accident · 2 fatalField investigationFinal reportMooney M20F · Fort Collins, COThe pilot's inadvertent stall/mush due to his excessive angle of bank during his traffic pattern turn to base. Factors were the pilot's improper downwind altitude, the pilot not properly setting his Kollsman Window in his altimeter, and the high density…NTSB FTW98LA379Accident · Minor injuriesLimited investigationFinal reportCessna 150M · Lamar, COThe pilot's failure to maintain climb airspeed, and inadvertently allowing the airplane to stall/mush. A factor was the embankment.NTSB FTW98LA367Accident · Minor injuriesLimited investigationFinal reportAerospatiale SA315B · Naturita, COPartial loss of engine power resulting from heat induced deterioration of the gas generator turbine. Factors were a forced landing in hilly unsuitable terrain containing mature trees.NTSB FTW98FA372Accident · 3 fatalField investigationFinal reportCessna 175A · Erie, COThe pilot's failure to maintain flying speed (above stall speed) and the subsequent stall/spin. Contributing factors were the tailwind, high density altitude, and aircraft overweight conditions.NTSB FTW98FA364Accident · Minor injuriesField investigationFinal reportBeech 1900D · Denver, CODebonding of the propeller erosion shield due to an improper overhaul and repair by other maintenance personnel.NTSB FTW98IA361Incident · No injuriesIncident investigationFinal reportPiper PA-31-350 · Denver, COA hydraulic failure due to a ruptured hydraulic line, preventing the extension of the nose and right main landing gear.NTSB FTW98LA360Accident · Minor injuriesLimited investigationFinal reportCessna 170 · Boulder, COThe pilot's intentional ground loop and his inadequate compensation for the wind condition. A contributng factor was crosswinds.NTSB FTW98LA351Accident · Serious injuriesLimited investigationFinal reportAirbus Industrie A-320-231 · Denver, COThe failure of the flight crew to comply with braking instructions after being instructed by ground personnel.NTSB FTW98LA350Accident · No injuriesLimited investigationFinal reportPiper PA-31-350 · Alamosa, COImproper major overhaul of the engine by the overhaul facility. Factors were failure of the V-band clamp, the melting of the baffle and manifold clamp, and the pilot not being able to extend the landing gear.NTSB FTW98LA348Accident · No injuriesLimited investigationFinal reportCessna 172N · Broomfield, COThe pilot's improper remedial action after making a hard landing and porpoising. A factor was his lack of total experience.NTSB FTW98FA344Accident · 4 fatalField investigationFinal reportCessna T210N · Creede, COThe pilot's failure to maintain flying airspeed and the subsequent stall/spin. A contributing factor was high density altitude.NTSB FTW98LA343Accident · Minor injuriesLimited investigationFinal reportCessna 182R · Watkins, COThe pilot's loss of control during taxi due to excessive taxi speed.NTSB FTW98LA353Accident · No injuriesLimited investigationFinal reportde Havilland DH-8-202 · Telluride, COThe inadequate chocks and inadequate chocking procedures by the operator. Factors were the unavailability of the parking brake and sloping terrain.NTSB FTW98LA335Accident · No injuriesLimited investigationFinal reportCessna 172M · Franktown, COFlight at an altitude insufficient to clear terrain. Factors were the pilot's failure to reset or correct a precessing directional gyro, his becoming lost/disoriented, and dark night light conditions.NTSB FTW98FA339Accident · 2 fatalField investigationFinal reportBeech H35 · La Veta, COThe pilot's poor judgment by intentionally flying into instrument meteorological conditions without proper certification. Factors were his failure to obtain a weather briefing, and the existing weather conditions that included clouds, rain, and obscuration.NTSB FTW98LA327Accident · Minor injuriesLimited investigationFinal reportRobinson R22 Beta · Englewood, COAn encounter with unanticipated windshear or a downdraft.NTSB FTW98LA324Accident · No injuriesLimited investigationFinal reportCessna A188B · Erie, COThe pilot's failure to maintain directional control of the airplane. A factor was a crosswind gust.NTSB FTW98LA320Accident · Minor injuriesLimited investigationFinal reportNavion G · Telluride, COPilot operating the aircraft with an overly lean mixture. A factor was unsuitable terrain for a forced landing.NTSB FTW98FA319Accident · Minor injuriesField investigationFinal reportCessna T-310P · Colorado Sprngs, COThe separation of a portion of the right engine exhaust stack, and the ensuing fuel fire in the right engine nacelle.NTSB FTW98LA323Accident · Serious injuriesLimited investigationFinal reportSchweizer SGU 2-22E · Canon City, COThe pilot's misjudgment of distance/altitude and his premature deployment of the spoilers, resulting in a undershoot and hard landing.NTSB FTW98LA315Accident · No injuriesLimited investigationFinal reportBell 47-GB31 · Olathe, COThe pilot's inadequate in-flight planning which resulted in an encounter with his own wake turbulence. Related factors were high density altitude and wake turbulence.NTSB FTW98LA314Accident · No injuriesLimited investigationFinal reportCessna 172N · Broomfield, COThe pilot's improper landing flare which resulted in a hard landing.NTSB FTW98LA312Accident · Minor injuriesLimited investigationFinal reportPiper PA-30 · Watkins, COThe pilot misjudged his altitude. Contributing to the accident were unfavorable wind and dark night conditions.NTSB FTW98LA298Accident · No injuriesLimited investigationFinal reportNorth American AT-6G · Longmont, COThe partial failure of the tail wheel steering system due to improper maintenance and the subsequent inadvertent ground loop during the landing sequence. Factors were the airport taxiway sign and the subsequent failure of the left main landing gear.NTSB FTW98FA299Accident · 1 fatalField investigationFinal reportGrumman American AA-1A · Larkspur, COThe pilot inadvertently stalling the airplane and entering an unrecoverable spin. A factor was clear air turbulence.NTSB FTW98LA341Accident · No injuriesLimited investigationFinal reportCessna T210K · Del Norte, COThe pilot's improper touchdown point for landing. Factors were the high density altitude, the downhill sloping runway, and the ditch off the end of the runway.NTSB FTW98LA296Accident · No injuriesLimited investigationFinal reportGrumman G164A · Stratton, COA power loss for reasons undetermined. A factor was the muddy corn field.NTSB FTW98LA295Accident · Minor injuriesLimited investigationFinal reportCessna 172E · Watkins, COThe pilot's inadequate evaluation of the weather which resulted in an encounter with a microburst. Contributing was the airplane's climb capability exceeded by the microburst, and rising terrain.NTSB FTW98FA273Accident · Minor injuriesField investigationFinal reportBoeing 737-322 · Denver, COInadequate visual lookout by ground personnel (tug operator). Factors include failure of the airline to provide proper assistance (wing walkers) to the tug operator, and inadequate pushback procedures by the airline; inattention of the catering truck driver,…NTSB FTW98LA222Accident · Minor injuriesLimited investigationFinal reportMooney M20E · Watkins, COThe pilot's failure to maintain visual contact with the taxiway. Factors were the pilot's disabling the electrical system by turning off the master switch, a dark night, and excessive taxi speed.NTSB FTW98LA231Accident · Serious injuriesLimited investigationFinal reportBalloon Works Firefly 7-B · Longmont, COThe pilot's failure to properly position his foot for a high wind landing. Factors were high winds and windshear.NTSB FTW98LA224Accident · No injuriesLimited investigationFinal reportMooney M20F · Telluride, COThe pilot exceeded the crosswind capability performance of the aircraft, and his delayed response in initiating a go around. Factors were gusty, crosswind and tailwind conditions, and high density altitude.NTSB FTW98LA211Accident · Serious injuriesLimited investigationFinal reportEller BD-5B · Falcon, COThe vibration induced overload failure of the canopy holdback fitting resulting in reduced control capability. A factor was partial failure of one propeller blade for unknown reasons.NTSB FTW98IA208Incident · No injuriesIncident investigationFinal reportBoeing 727-25C · Colorado Sprngs, COAn inadvertent inflight collision with a flock of large birds.