NTSB investigations, CO
60 cases where the sequence of events included Landing gear collapse.
Cases per year
| 2008 | 5 |
|---|---|
| 2009 | 3 |
| 2010 | 2 |
| 2011 | 3 |
| 2012 | 7 |
| 2013 | 4 |
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 3 |
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 c.\"eventStateOrRegion\" = 'CO' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '094' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\"))
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 c."eventStateOrRegion" = 'CO' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '094' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")) 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 WPR26LA259Accident · No injuriesClass 4 · LimitedFinal reportVans RV8 · Monte Vista, COThe pilot’s failure to maintain directional control during takeoff in gusty crosswind conditions.NTSB CEN26LA151Accident · No injuriesClass 4 · LimitedFinal reportChampion 7GCB · Colorado Springs, COThe pilot’s failure to maintain directional control of the airplane during takeoff in gusty wind conditions, which resulted in a hard landing.NTSB DCA26LA151Accident · No injuriesClass 4 · LimitedFinal reportFairchild SA227-AC · Denver, COThe overstress failure of the left main landing gear lower drag brace links during takeoff which resulted in a runway excursion during landing due to the left main landing gear collapsing.NTSB CEN25LA403Accident · No injuriesClass 4 · LimitedFinal reportAeronca 11AC · Longmont, COThe pilot’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and the pilot’s improper landing flare which resulted in a hard landing.NTSB CEN25LA245Accident · No injuriesClass 4 · LimitedFinal reportFairchild 24R · Greeley, COThe pilot’s inability to maintain directional control during landing due to excessive wear in the tailwheel steering assembly.NTSB CEN25LA210Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Fort Morgan, COThe pilot’s failure to maintain directional control of the tailwheel-equipped airplane during a gusty crosswind landing.NTSB CEN25LA126Accident · No injuriesClass 3 · LimitedPreliminary reportBeech V35 · Engelwood, COOn March 16, 2025, at 1741 mountain daylight time, a Beech V35 airplane, N7987R, was substantially damaged when it was involved in an accident near Englewood, Colorado. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB CEN25LA089Accident · Minor injuriesClass 4 · LimitedFinal reportLuscombe 8E · Brush, COThe failure of the left main landing gear forward strut.NTSB CEN25LA001Accident · No injuriesClass 4 · LimitedFinal reportCessna TR182 · Englewood, COThe collapse of the right main landing gear during landing rollout.NTSB CEN24LA373Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Delta, COThe pilot’s loss of aircraft control during a bounced landing and go-around, during which the right main landing gear struck a large rock, which damaged it such that it collapsed during the following landing, which caused the airplane to impact the ground…NTSB CEN24LA321Accident · No injuriesClass 4 · LimitedFinal reportCessna A185 · Loveland, COThe pilot’s failure to maintain directional control during the landing, that resulted in a ground loop and a runway excursion. Contributing to the accident was the flight instructor’s delayed remedial action.NTSB CEN24LA329Accident · No injuriesClass 3 · LimitedFinal reportCessna 414 · Leadville, COA loss of brake fluid for reasons that could not be determined, which resulted in a loss of braking effectiveness during landing.NTSB CEN24LA227Accident · Minor injuriesClass 4 · LimitedFinal reportBeech D55 · Colorado Springs, COThe deflated right main landing gear tire due to a sidewall puncture made by an unknown object, which led to the pilot’s loss of directional control and the landing gear collapse during landing roll.NTSB CEN24LA055Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-30 · Alamosa, COThe pilot’s failure to maintain directional control during landing with an excessive touchdown speed that resulted in a loss of control and impact with terrain.NTSB CEN23LA206Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172B · Divide, COA loss of engine power during cruise flight for reasons that could not be determined.NTSB CEN23LA208Accident · No injuriesClass 3 · LimitedFinal reportLuscombe 8E · Cortez, COFailure of the right main landing gear due to prolonged corrosion of the landing gear tube, which weakened the gear.NTSB CEN22LA204Accident · No injuriesClass 3 · LimitedFinal reportCessna T210N · Denver, COThe main landing gear collapsed during landing for reasons that could not be determined.NTSB CEN21LA259Accident · No injuriesClass 3 · LimitedFinal reportCessna 560XL · Aspen, COThe malfunction of the landing gear handle for reasons that could not be determined, which caused the right main landing gear to collapse during the landing roll.NTSB CEN21LA186Accident · No injuriesClass 4 · LimitedFinal reportPiper PA 46-350P · Aspen, COThe pilot’s failure to maintain directional control on landing.NTSB CEN21LA099Accident · No injuriesClass 4 · LimitedFinal reportCessna 150K · Peyton, COThe student pilot did not maintain directional control of the airplane while landing. Contributing to the accident was the pilot’s diverted attention to the incorrect flap setting.NTSB CEN21LA009Accident · No injuriesClass 4 · LimitedFinal reportMooney M20F · Denver, COFailure of the landing gear motor that prevented the gear from extending fully to the down and locked position, which resulted in a gear collapse on landing and a subsequent loss of directional control.NTSB CEN20CA332Accident · No injuriesClass 4 · Data collectionFinal reportPiper PA28R · Englewood, COThe flight instructor did not maintain a proper approach path and landing flare during a landing with a tailwind, which resulted in a hard landing and damaged landing gear. During the subsequent landing with damaged landing gear, the flight instructor lost…NTSB DCA20LA047Accident · No injuriesClass 3 · LimitedFinal reportBoeing 737-824 · Denver, COMaintenance personnel’s excessive grinding of the left main landing gear’s aft trunnion pin during its initial overhaul, which caused heat damage to the base metal and led to the fatigue crack that caused the pin to fail during the accident flight.…NTSB CEN19TA330Accident · No injuriesClass 3Final reportCirrus SR22 · Glenwood Springs, COThe pilot’s failure to maintain control of the airplane while landing with a tail wind, which resulted in an aerodynamic stall and a subsequent hard landing..NTSB GAA19CA257Accident · Minor injuriesData collectionFinal reportCessna 182 · Glades Park, COThe pilot's failure to maintain adequate airspeed and climb rate during takeoff in high-density altitude conditions, which resulted in his failure to clear power lines.NTSB GAA19CA211Accident · No injuriesData collectionFinal reportTubbs S/Performance Air PA-18-225 · Denver, COThe pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop.NTSB GAA19CA045Accident · No injuriesData collectionFinal reportPiper PA18 · Denver, COThe pilot's failure to maintain directional control of the airplane during landing in gusting wind conditions.NTSB CEN18LA059Accident · No injuriesLimited investigationFinal reportAmerican Champion 7GCAA · Longmont, COThe failure of the landing gear through bolt primarily due to fatigue during a hard landing, which resulted in a landing gear collapse and runway excursion. Contributing to the accident was noncompliance with the manufacturer service letter.NTSB CEN17LA340Accident · No injuriesLimited investigationFinal reportCessna 310G · Broomfield, COA collapse of the right main landing gear due to a bent pushrod, which precluded the gear from fully extending. The reason for the bent pushrod could not be determined based on the available information.NTSB CEN17LA301Accident · No injuriesLimited investigationFinal reportBeech D17S · Colorado Springs, COThe pilot's failure to maintain directional control during the landing roll with a quartering tailwind.NTSB GAA17CA257Accident · Minor injuriesData collectionFinal reportNelson Sydney Vans Acft RV8A · Englewood, COThe pilot's improper landing flare and inadvertent selection of the mixture control, which resulted in a hard, bounced landing during gusting crosswind wind conditions.NTSB CEN17IA155Incident · No injuriesIncident investigationFinal reportCessna 172RG · Greeley, COFailure of the left main landing gear actuator assembly, which resulted in an inability to extend the left main landing gear.NTSB GAA17CA016Accident · No injuriesData collectionFinal reportRobinson Stewart J Bearhawk · Calhan, COThe pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion.NTSB GAA16CA378Accident · No injuriesData collectionFinal reportPiper PA46R · Denver, COThe pilot's improper nose down pitch attitude during touchdown resulting in a propeller strike, hard bounced landing, and nose landing gear collapse.NTSB GAA16CA214Accident · No injuriesData collectionFinal reportRockwell International 112TC · Durango, COThe instructed pilot's interference with the flight controls during landing, which resulted in the flight instructor's inability to maintain directional control, resulting in a runway excursion and substantial damage to the firewall and left wing spar.NTSB CEN15CA125Accident · Minor injuriesData collectionFinal reportCessna 182C · Fort Morgan, COThe pilot's improper fuel planning/management, which resulted in the total loss of engine power due to fuel exhaustion and the subsequent forced landing in a pasture.NTSB CEN14LA011Accident · No injuriesLimited investigationFinal reportDavenport Long EZ · Boulder, COThe sudden loss of tire pressure during takeoff roll, which resulted in a loss of directional control.NTSB DCA13FA148Accident · No injuriesField investigationFinal reportBeech 1900D · Telluride, COFailure of the left main landing gear actuator internal lock to engage in the locked position for undetermined reasons.NTSB CEN13LA443Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Monte Vista, COThe partial loss of engine power due to a fatigue failure of the engine cylinder exhaust rocker housing as a result of an excessively torqued rocker assembly.NTSB CEN13LA298Accident · No injuriesLimited investigationFinal reportAllen Jan A Challenger II · Greeley, COThe loss of engine power due to the engine seizure, which resulted from damage caused by the ingestion of carburetor ice into the engine intake ports.NTSB CEN13CA083Accident · No injuriesData collectionFinal reportMooney M20TN · Durango, COThe pilot's improper recovery from a bounced landing, and his failure to maintain airplane control during the go-around maneuver.NTSB CEN12LA668Accident · No injuriesLimited investigationFinal reportThompson RV-6 · Pagosa Springs, COThe pilot’s failure to maintain directional control of the airplane during the landing roll. Contributing to the accident was the pilot’s lack of landing experience at high density altitudes.NTSB CEN12FA653Accident · No injuriesField investigationFinal reportPiper PA-46-350P · Kiowa, COA catastrophic engine failure due to unrecognized and unrepaired corrosion within the engine, which was consistent with engine operations after an extended period of inactivity.NTSB CEN12LA420Accident · No injuriesLimited investigationFinal reportCessna T210M · Colorado Springs, COThe failure of the right hydraulic main gear down-lock actuator hose in flight.NTSB CEN12LA485Accident · No injuriesLimited investigationFinal reportMooney M20E · Englewood, COThe pilot's loss of directional control during landing.NTSB CEN12LA374Accident · No injuriesLimited investigationFinal reportYakovlev Yak-52 · Loveland, COThe pilot’s inadvertent closure of the pneumatic system valve, which resulted in the nose landing gear not fully extending before landing. Contributing to the accident was the pilot's reliance on the mechanical landing gear position indicators instead of the…NTSB CEN12CA263Accident · No injuriesData collectionFinal reportCampbell David Legacy · Durango, COThe pilot’s improper flare and subsequent aerodynamic stall, which resulted in a hard landing.NTSB CEN11LA361Accident · No injuriesLimited investigationFinal reportFlournoy Martin R Flournoy MR S1S · Colorado Springs, COThe pilot’s loss of directional control during the landing rollout due to failure of the tailwheel assembly for undetermined reasons.NTSB CEN11LA357Accident · No injuriesLimited investigationFinal reportCessna T210M · Pueblo, COFailure of the landing gear to fully extend due to a failed o-ring in the nose gear actuator piston and a broken seal in the emergency landing gear extension system.NTSB CEN11IA341Incident · No injuriesIncident investigationFinal reportBeech 1900D · Denver, COThe fatigue failure of the nose landing gear (NLG) end cap, which resulted in insufficient hydraulic pressure to secure the left main landing gear into the down and locked position. Contributing to the fatigue failure was the NLG end cap’s non-optimum grain…