NTSB investigations, CO

20 cases where the sequence of events included Landing gear not configured.

Cases per year

20092026
NTSB investigations, CO per year, 2009–2026: 20 cases
20091
20101
20123
20131
20141
20173
20192
20211
20234
20241
20262

Latest 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\" = '095' 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.

NTSB ANC26LA060Accident · No injuriesClass 4 · LimitedInvestigation openBeech E33 · Steamboat Springs, COJun 13, 2026 · N8475N · Substantial damageNTSB CEN26LA166Accident · No injuriesClass 4 · LimitedFinal reportDiamond Aircraft Ind DA 42 NG · Colorado Springs, COMaintenance personnel's installation of an oversized tire, which prevented the left main landing gear from extending resulting in a precautionary gear up landing.Apr 9, 2026 · N311LH · Substantial damageNTSB CEN24LA375Accident · No injuriesClass 4 · LimitedFinal reportBellanca 14 19 · Cortez, COThe pilot’s failure to extend the landing gear before landing.Sep 29, 2024 · N8851R · DestroyedNTSB CEN24LA018Accident · No injuriesClass 3 · LimitedFinal reportCessna 210B · Pueblo, COThe fatigue failure of the right main landing gear hydraulic actuator, which resulted in a loss of hydraulic fluid that prevented the pilot from lowering the landing gear to the fully extended position.Oct 18, 2023 · N9597X · Substantial damageNTSB CEN23LA407Accident · No injuriesClass 3 · LimitedFinal reportBeech 95-B55 (T42A) · Greeley, COThe pilot’s failure to extend the landing gear. Contributing to the accident was a malfunction of the landing gear warning horn for undetermined reasons.Aug 30, 2023 · N2KM · Substantial damageNTSB CEN23LA274Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-250 · Durango, COThe pilot’s failure to extend the landing gear before landing.Jul 2, 2023 · N7525P · Substantial damageNTSB CEN23LA253Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-250 · Watkins, COThe pilot’s failure to extend the landing gear before landing. Contributing to the accident was the pilot’s failure to utilize the prelanding checklist to ensure the landing gear was extended before landing.Jun 10, 2023 · N6886P · Substantial damageNTSB CEN21LA248Accident · No injuriesClass 3 · LimitedFinal reportBeech 1900 · Denver, COThe pilot’s failure to properly configure the airplane for landing, which resulted in a gear-up landing.Jun 3, 2021 · N219VP · Substantial damageNTSB GAA20CA084Accident · No injuriesData collectionFinal reportBeech 55 · Broomfield, COThe pilot's unintentional retraction of the landing gear during the landing roll.Nov 9, 2019 · N6206V · Substantial damageNTSB CEN19LA313Accident · No injuriesClass 3 · LimitedFinal reportJackson Velocity · Mack, COA propeller overspeed due to failure of the electronic ignition timing ring attachment screws, and a runway overrun during the subsequent forced landing.Sep 3, 2019 · N2XF · Substantial damageNTSB GAA17CA221Accident · No injuriesData collectionFinal reportCessna P210 · Granby, COThe pilot's failure to extend the landing gear before landing.Apr 6, 2017 · N829BA · Substantial damageNTSB GAA17CA197Accident · No injuriesData collectionFinal reportCessna R182 · Colorado Springs, COThe pilot’s failure to complete the landing checklist and to extend the landing gear before touchdown.Mar 18, 2017 · N747AB · Substantial damageNTSB CEN17LA091Accident · No injuriesLimited investigationFinal reportBeech 95-C55 · Delta, COThe failure of the landing gear to extend during landing approach due to the interference between the landing gear motor's sector and worm gears.Jan 18, 2017 · N303QB · Substantial damageNTSB CEN15IA014Incident · No injuriesIncident investigationFinal reportRaytheon Hawker · Denver, COThe failure of the main landing gear tire, which resulted in separation of the servo block and subsequent total loss of all hydraulic system pressure and prevented the landing gear from extending before landing.Oct 15, 2014 · N694ES · Minor damageNTSB CEN13LA488Accident · No injuriesLimited investigationFinal reportGriffith E/Boyd W E Lancair 360 · Nucla, COThe pilot’s failure to extend the airplane’s landing gear before landing.Aug 12, 2013 · N15EG · Substantial damageNTSB CEN12LA473Accident · No injuriesLimited investigationFinal reportCessna TR182 · Steamboat Springs, COThe pilot's failure to extend the landing gear before landing.Jul 24, 2012 · N73VX · Substantial damageNTSB CEN12LA389Accident · No injuriesLimited investigationFinal reportHoyle Fighter Escort Wings · Pueblo, COAn internal failure of one of the electrical system’s two batteries combined with the inadequate electrical system design, which resulted in a total loss of engine power.Jun 23, 2012 · N2051P · Substantial damageNTSB CEN12CA157Accident · Minor injuriesData collectionFinal reportCessna R182 · Colorado Springs, COThe pilot did not extend the landing gear before landing.Feb 4, 2012 · N2696C · Substantial damageNTSB CEN10LA524Accident · No injuriesLimited investigationFinal reportPiper PA-46-350P · Greeley, COA loss of engine power for undetermined reasons.Aug 24, 2010 · N4167A · Substantial damageNTSB CEN09CA343Accident · No injuriesData collectionFinal reportCessna 404 · Englewood, COThe failure of the landing gear to extend due to the failure of a hydraulic line.Jun 6, 2009 · N37127 · Substantial damage