NTSB investigations, 1984, CO
180,658 investigations by the National Transportation Safety Board since 1962: 174,636 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 | 45 |
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\") = 1984
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") = 1984 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 DEN85LA052Accident · No injuriesLimited investigationFinal reportCessna 172 · Ft. Collins, COThe plt reported that upon arrival at fort Collins, and while at cruise altitude, the eng suddenly lost power. During the emergency descent maneuvering he lost sight of the airport and landed in a plowed field. Post crash examination of eng revealed the…NTSB DEN85LA045Accident · No injuriesLimited investigationFinal reportMooney M20E · Boulder, COThe acft made an off-arpt forced landing after the engine lost power during takeoff. The flt instructor and the plt receiving instruction had flown this acft for an earlier session of training during the morning. After a break and briefing the acft was…NTSB DEN85LA044Accident · No injuriesLimited investigationFinal reportPiper PA-28RT-201 · Nucla, COAccording to the plt, after landing on centerline brakes were applied and ice on the rwy caused the acft to veer left. An abort was initiated but realizing that the acft was going off the side of the rwy the plt secured the eng. The nose gear collapsed as the…NTSB DEN85LA041Accident · No injuriesLimited investigationFinal reportGulfstream Aerocommander 695 · Cortez, COThe accident acft was the first to use the rwy since it was scraped by the snow plow earlier in the day. A commercial plt that operates at the arpt said about 2-3 inches of snow had accumulated on the rwy since it was cleared. The plt of the accident acft…NTSB DEN85LTE03Accident · 1 fatalFinal reportKenneth Roebuck Varieze · Antonio, COPlt had filed a VFR flt plan from espanola, NM, to durango, CO, with a proposed departure time of 1500 MST and as en route flt time of 1 hr 10 mins. The flt plan was not activated. A search for the acft began on 12/13/84 and ended on 12/24/84. On 6/10/85 the…NTSB DEN85FA037Accident · 1 fatalField investigationFinal reportCessna T-210G · Meeker, COThe a/c dept larami, WY on an IFR flt to grand junction, CO.in the vicinity of Meeker, CO, the plt experienced an apparent instrument gyro problem. He flew off course once but with the help of ARTCC he was vectored back on course, only to again go off crse,…NTSB DEN85FA040Accident · Serious injuriesField investigationFinal reportMcdonnell Douglas DC-9-30 · Denver, COWhile en route from las vegas, NV to minneapolis, MN at FL330, the acft had been in smooth air for at least 30 min when clear air turbulence (cat) was encountered. The flt crew turned on the 'fasten seat belt' sign. A flt attendant, attempting to buckle into…NTSB DEN85LA036Accident · No injuriesLimited investigationFinal reportBell 205A-1 · Rifle, COThe helicopter was on a seismic operation when it lost eng power and was substantially damaged during the autorotative landing. The plt stated that when he came back on collective power the eng would enter severe compressor stalls. Post crash examination of…NTSB DEN85LA033Accident · No injuriesLimited investigationFinal reportBell 206B-III · Mancos, COThe acft settled during an emer lndg after the plt said the engine failed. Investigation revealed the acft received minor maintenance on the day of the accident, consisting of changing the pitch chain links on the main rotor blades. Theplt made a written…NTSB DEN85LA023Accident · No injuriesLimited investigationFinal reportPiper PA-34-200T · Denver, COAccording to the pilot, the acft was taxiing to park when a small truck was seen approaching from the right about 50 ft away. After realizing that the vehicle driver did not see the acft the pilot reduced power to idle and applied the brakes. The truck driver…NTSB DEN85LA022Accident · Minor injuriesLimited investigationFinal reportCessna R172K · Longmont, COThe pilot stated that he encountered a strong gust of wind from the right and lost directional control. The acft struck the ground with the left wing tip and nose and flipped over.NTSB DEN85IA016Incident · No injuriesIncident investigationFinal reportBeech 99A · Fort Morgan, COCaptain shutdown rt engine in-flight due to a surging and vibration problem. The aircraft was in moderate icing conditions at the time of the engine shutdown. The captain was unable to maintain altitude and an emergency landing was made in a corn field. Post…NTSB DEN85LA012Accident · No injuriesLimited investigationFinal reportPiper PA-34-220T · Creede, COAccording to the plt, just prior to landing, at about 5 ft AGL, the gear warning horn sounded and the right main gear down and locked light flickered. The landing was continued and the right gear collapsed during the rollout. A mechanic who examined the acft…NTSB DEN85FA010Accident · 2 fatalField investigationFinal reportCessna T210-H · Englewood, COThe plt received a weather briefing prior to departure from scottsdale. He encountered IMC shortly after takeoff. The flt progressed uneventfully until in the vicinity of Colorado springs when the plt rpted a problem with his directional gyro. The plt…NTSB DEN85LA006Accident · Serious injuriesLimited investigationFinal reportPiper PA-22 · Rocky Ford, COAccording to the plt, at 150 to 200 ft AGL the acft was unable to continue the climb or maintain alt. During the forced landing rollout in a corn field the acft nosed over and came to rest inverted. Engine disassembly revealed no mechanical malfunctions. The…NTSB DEN84FA303Accident · 1 fatalField investigationFinal reportPiper PA-31-310 · Paonia, COThe acft was flying at a very low alt over mountanous terrain. As the acft approached a crest of a ridge the acft started to buffet and then encountered a downslope wind condition. The combination of approaching a stall and encountering a downdraft forced the…NTSB DEN84LA301Accident · No injuriesLimited investigationFinal reportPiper PA-28-161 · Kiowa, COWhile practicing a simulated engine failure the student plt inavertantly shut off the fuel. During the actual forced landing in a rough field, the acft contacted a yucca plant and a gear collapse resulted. The CFI later reported the spring loaded safty stop…NTSB DEN84FU011Accident · 1 fatalFinal reportEipper Quicksilver MX · Brighton, COThe ultralight was turning in a spiral turn to the right when witnesses heard the engine stop. The acft went into a spinand crashed. Witnesses said the plt had been doing this before with a pull out at about 50 ft AGL and a restart of the engine. The height…NTSB DEN84FTE04Accident · No injuriesFinal reportHomebuilt KR 2 · Boulder, COPlt installed a different propeller on acft to increase RPM and thrust. After takeoff plt was unable to gain sufficient alt to clr trees on base leg. Precautionary landing was made on a highway. Plt applied right brake during landing roll and acft traveled to…NTSB DEN84FA293Accident · Serious injuriesField investigationFinal reportCessna 172K · Aspen, COAfter takeoff from a valley airstrip in mountainous terrain, plt elected to climb out straight ahead toward rising terrain instead of circling to gain altitude first (normal procedure). Approaching mountain pass, acft was observed climbing below level of the…NTSB DEN84LA291Accident · No injuriesLimited investigationFinal reportCessna 172P · Longmont, COThe plt was making a low pass over a strip he wanted certified. During an attempted go-around the eng would not respond so the plt landed. The acft ran off the end of the wet sod airstrip and nosed over. The plt said after the accident that the carburetor…NTSB DEN84FA290Accident · Serious injuriesField investigationFinal reportBell 206L-3 · Denver, COPlt had slowed the helicopter to 30 KIAS using 50 to 60% pwr at an alt of 700 ft AGL. Plt the heard 'two beeps' from the eng out warning horn, saw eng out annunciator lights illuminate & the 'turbine neddle dropping.' Plt 'bottomed'the collective, lowering…NTSB DEN84FU010Accident · Serious injuriesFinal reportWeedhopper B · Erie, COThe ultralight engine lost power while the plt was in a practice area. He returned to the arpt, and during the attempt to land, the acft crahsed. An instructor said the acft seemed to be flying slower than normal and the plt extended the downwind turn to base…NTSB DEN84LA276Accident · Serious injuriesLimited investigationFinal reportMolino PIK-20 · Calhan, COThe glider struck a barbed wire fence while landing in a pasture. The plt said he encountered a downwash at the edge of a storm that resulted in an 800 fpm rate of descent and forced landing.NTSB DEN84LA289Accident · Serious injuriesLimited investigationFinal reportRaven AX-8 · Clark, CODuring a normal high wind landing a pax received two fractures of the fibula bone. Another pax reported that the injured pax was standing on one leg with the other knee bent resting on a propane tank during the landing. Pax were reportedly briefed on the…NTSB DEN84LA273Accident · Serious injuriesLimited investigationFinal reportRaven S55A · Littleton, COPlt stated that the entire flt was uneventful. The female passenger had her knees bent in preparation for landing but her body was twisted in a direction that was opposite to her feet when the balloon made ground contact.NTSB DEN84LA267Accident · No injuriesLimited investigationFinal reportPiper PA-22-150 · Aurora, COPlt stated that following a hard landing, directional control was lost. Acft departed runway and collided with dirt berm.NTSB DEN84LA263Accident · No injuriesLimited investigationFinal reportCessna 185 · Akron, COThe aircraft was aprx 200 lbs under max gross weight for the takeoff. According to the pilot all of his previous takeoffs had been at near sea level. He stated that he was not used to high density takeoffs such as this one (7011 feet density altitude). The…NTSB DEN84LA264Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Durango, COThe acft collided with a rwy light during takeoff. The plt said the acft got to about 6 ft AGL for about 100 ft and whenthe plt pushed foward on the control column the acft settled back on the rwy. During the roll the horizontal stabilizer hit a rwy light.…NTSB DEN84FA259Accident · 1 fatalField investigationFinal reportCessna 172 · Lyons, COThe acft plunged to the ground after being seen doing a series of stall/spin maneuvers at a low alt. One witness saw thefinal maneuver and after seeing the acft disappear behind trees he went in search of it and found it about 100 yds southof the position he…NTSB DEN84FA308Accident · 2 fatalField investigationFinal reportCessna L-19E · Tabernash, COThe airplane departed grandby 8/10/84 and failed to arrive at its destination. On 8/23/87, it was found on the slope of a high tree-covered ridge. Video tape recovered from the wreckage provided a visual and audio record of the flight from takeoff to impact.…NTSB DEN84LA252Accident · No injuriesLimited investigationFinal reportCessna 188 · Holyoke, COThe pilot lost directional control after landing with a rear right quartering crosswind reported at 5 KTS. Use of opposite rudder and braking was ineffective in regaining directional control. The pilot reported no response from the left brake and stated…NTSB DEN84MA247Accident · 3 fatalMajor investigationFinal reportCessna 421C · Fort Lupton, CODuring a preflt wx briefing, the plt was advised of thunderstorms & intense rain showers on the route of flt. However, he filed an IFR flt plan & took off. During flt, the ATC controller advised the plt of a level 6 cell ahead & noted that he had no report on…NTSB DEN84IA241Incident · No injuriesIncident investigationFinal reportde Havilland DHC-7-100 · Denver, COThe left main landing gear was disassembled & reassembled by company maintenance personnel & the acft was being ferried to another base for permanent landing gear repairs. During takeoff, the left main landing gear and shock strut seperated from the acft. The…NTSB DEN84LA244Accident · No injuriesLimited investigationFinal reportCessna 182 · Pagosa Springs, COWhile turning the base leg, the plt viewed a hot air balloon near the final apch corridor. The plt elected to make a short final to avoid the balloon. The acft bounced during touchdown. The plt added power to recover and the acft veered off the left side of…NTSB DEN84LA239Accident · No injuriesLimited investigationFinal reportAerospatiale 316B · Naturita, COOne of the axial compressor blades separated resulting in internal engine damage and loss of engine power. Examination of the blades showed evidence of corrosion beyond acceptable limits. The engine was not equipped with an air filter or particle separator.…NTSB DEN84LU009Accident · Minor injuriesFinal reportEipper Quicksilver MXL · Erie, COThe ultralight was proceeding in a normal takeoff when the engine lost partial power at about 100 ft AGL. The plt turnedthe vehicle to avoid trees and a river. During the hard forced landing, the vehicle was damaged and the plt hurt his leg. Post accident…NTSB DEN84LA232Accident · No injuriesLimited investigationFinal reportBell 206B · Durango, COThe acft engine quit as the plt maneuvered over a ridge line after operating over 1 hour without refueling even though fuel was available at the last stop. The plt said the fuel gages indicated 6 gallons of fuel remaining. Of this about 2 are unusable in…NTSB DEN84LA227Accident · Minor injuriesLimited investigationFinal reportBellanca 8KCAB · Longmont, COShortly after lift off from a touch-and-go landing, the engine sputtered and lost power. A forced landing was performed in a field where the aircraft struck a dirt bank and nosed over. No reason was found for the power loss.NTSB DEN84FA222Accident · 2 fatalField investigationFinal reportNorth American P-51D · Carbondale, COThe plt was performing aerobatic maneuvers in a P-51D that had been modified for racing & exhibition. Witnesses near the accident site stated that the acft had just completed several aerobatic maneuvers before it began a vertical climb. The climb was…NTSB DEN84FA219Accident · 1 fatalField investigationFinal reportPiper PA-25-235 · Peetz, COPlt had completed spraying around farm buildings for insect control. On first pass in crop area, the acft was observed to pull up over pwr lines at end of swath run but collided with overhead ground wire at top of multi- wire array. Acft then collided with…NTSB DEN84LA214Accident · No injuriesLimited investigationFinal reportPiper PA-28 · Empire, COPlt stated, 'departed arapahoe, planning on selecting best mountain pass versus altitude achieved. At 10,500, decided pass I was entering would be too difficult & began maneuvering for 180 turn. Severe downdraft occurred & altitude & airspeed lost precluded a…NTSB DEN84LU007Accident · 1 fatalFinal reportEipper Quicksilver MXL · Granby, COReportedly, the plt was flying at low altitude over a lake & had to pull up to cross over a dam. After crossing the dam, he began to descend, but the ultralight vehicle collided with power lines on the down river side of the dam. The power lines were about…NTSB DEN84FA211Accident · 1 fatalField investigationFinal reportWaco UPF-7 · Brighton, COThe plt departed casper, WY, at 0500 with full fuel tanks. At 0807 the plt landed at an air national guard base but declineed to refuel and departed at 0918. Only a trace of fuel was found in the acft wreckage. The acft had been aloft 3 hours and 34 minutes.…NTSB DEN84LA210Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33 · Eagle, COThe acft was turned at a low alt in high density alt on final approach and stalled at about 20 ft AGL. The glider contacted the rwy and ground looped.NTSB DEN84IA209Incident · No injuriesIncident investigationFinal reportBoeing 727-23 · Denver, COThe acft went off the rwy during landing. The excursion was to the left & was not corrected before the acft made an exit from the rwy. The captain, in a written statement, said that he was anticipating a right x-wind because he was landing on rwy 26L & the…NTSB DEN84FA207Accident · 2 fatalField investigationFinal reportBell 206B · Englewood, COWitnesses stated the helicopter entered a 'hard left turn' into a near inverted position before 'it went down hard and fast.' Inspection disclosed the metal connection for the left cyclic stick was broken in half. (Plt was flying from left seat.) Exam of the…NTSB DEN84FTE02Accident · No injuriesFinal reportJohn R Jones PDQ2VW · Aurora, COThe homebuilt acft was being tested for flt even though previous tests had proven that the engine would not support flt. The plt said the carburetor had been improved prior to this test. The acft tookoff and climbed to about 15 ft AGL and stayed at that alt…NTSB DEN84FA199Accident · 2 fatalField investigationFinal reportMooney M20J · Broomfield, COThe aircraft had been idle for 40 days and was refueled to capacity with 30 gals the night before the flight. Plt and pass were departed at 0819 for a scheduled 0830 meeting 150 miles away. On initial climb, plt reported a power loss. Acft observed to…NTSB DEN84FA196Accident · 3 fatalField investigationFinal reportCessna 172RG · Red Feather Lak, COAcft departed downwind into rising terrain with density altitude calculated to be 10,935 ft. acft was observed to mush into rising terrain 300 ft higher than and 3 mi west of the rwy.