# NTSB investigations, CO: Landing gear not configured

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ANC26LA060](https://openairdocs.org/ntsb/ANC26LA060.md): Beech E33 · Steamboat Springs, CO · Accident · No injuries · Class 4 · Limited · Investigation open · Jun 13, 2026 · N8475N · Substantial damage
- [NTSB CEN26LA166](https://openairdocs.org/ntsb/CEN26LA166.md): Diamond Aircraft Ind DA 42 NG · Colorado Springs, CO · Accident · No injuries · Class 4 · Limited · Final report · Apr 9, 2026 · N311LH · Substantial damage
  > Maintenance personnel's installation of an oversized tire, which prevented the left main landing gear from extending resulting in a precautionary gear up landing.
- [NTSB CEN24LA375](https://openairdocs.org/ntsb/CEN24LA375.md): Bellanca 14 19 · Cortez, CO · Accident · No injuries · Class 4 · Limited · Final report · Sep 29, 2024 · N8851R · Destroyed
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB CEN24LA018](https://openairdocs.org/ntsb/CEN24LA018.md): Cessna 210B · Pueblo, CO · Accident · No injuries · Class 3 · Limited · Final report · Oct 18, 2023 · N9597X · Substantial damage
  > The 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.
- [NTSB CEN23LA407](https://openairdocs.org/ntsb/CEN23LA407.md): Beech 95-B55 (T42A) · Greeley, CO · Accident · No injuries · Class 3 · Limited · Final report · Aug 30, 2023 · N2KM · Substantial damage
  > The pilot’s failure to extend the landing gear. Contributing to the accident was a malfunction of the landing gear warning horn for undetermined reasons.
- [NTSB CEN23LA274](https://openairdocs.org/ntsb/CEN23LA274.md): Piper PA-24-250 · Durango, CO · Accident · No injuries · Class 4 · Limited · Final report · Jul 2, 2023 · N7525P · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB CEN23LA253](https://openairdocs.org/ntsb/CEN23LA253.md): Piper PA-24-250 · Watkins, CO · Accident · No injuries · Class 4 · Limited · Final report · Jun 10, 2023 · N6886P · Substantial damage
  > The 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.
- [NTSB CEN21LA248](https://openairdocs.org/ntsb/CEN21LA248.md): Beech 1900 · Denver, CO · Accident · No injuries · Class 3 · Limited · Final report · Jun 3, 2021 · N219VP · Substantial damage
  > The pilot’s failure to properly configure the airplane for landing, which resulted in a gear-up landing.
- [NTSB GAA20CA084](https://openairdocs.org/ntsb/GAA20CA084.md): Beech 55 · Broomfield, CO · Accident · No injuries · Data collection · Final report · Nov 9, 2019 · N6206V · Substantial damage
  > The pilot's unintentional retraction of the landing gear during the landing roll.
- [NTSB CEN19LA313](https://openairdocs.org/ntsb/CEN19LA313.md): Jackson Velocity · Mack, CO · Accident · No injuries · Class 3 · Limited · Final report · Sep 3, 2019 · N2XF · Substantial damage
  > A propeller overspeed due to failure of the electronic ignition timing ring attachment screws, and a runway overrun during the subsequent forced landing.
- [NTSB GAA17CA221](https://openairdocs.org/ntsb/GAA17CA221.md): Cessna P210 · Granby, CO · Accident · No injuries · Data collection · Final report · Apr 6, 2017 · N829BA · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB GAA17CA197](https://openairdocs.org/ntsb/GAA17CA197.md): Cessna R182 · Colorado Springs, CO · Accident · No injuries · Data collection · Final report · Mar 18, 2017 · N747AB · Substantial damage
  > The pilot’s failure to complete the landing checklist and to extend the landing gear before touchdown.
- [NTSB CEN17LA091](https://openairdocs.org/ntsb/CEN17LA091.md): Beech 95-C55 · Delta, CO · Accident · No injuries · Limited investigation · Final report · Jan 18, 2017 · N303QB · Substantial damage
  > The failure of the landing gear to extend during landing approach due to the interference between the landing gear motor's sector and worm gears.
- [NTSB CEN15IA014](https://openairdocs.org/ntsb/CEN15IA014.md): Raytheon Hawker · Denver, CO · Incident · No injuries · Incident investigation · Final report · Oct 15, 2014 · N694ES · Minor damage
  > The 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.
- [NTSB CEN13LA488](https://openairdocs.org/ntsb/CEN13LA488.md): Griffith E/Boyd W E Lancair 360 · Nucla, CO · Accident · No injuries · Limited investigation · Final report · Aug 12, 2013 · N15EG · Substantial damage
  > The pilot’s failure to extend the airplane’s landing gear before landing.
- [NTSB CEN12LA473](https://openairdocs.org/ntsb/CEN12LA473.md): Cessna TR182 · Steamboat Springs, CO · Accident · No injuries · Limited investigation · Final report · Jul 24, 2012 · N73VX · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB CEN12LA389](https://openairdocs.org/ntsb/CEN12LA389.md): Hoyle Fighter Escort Wings · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Jun 23, 2012 · N2051P · Substantial damage
  > An 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.
- [NTSB CEN12CA157](https://openairdocs.org/ntsb/CEN12CA157.md): Cessna R182 · Colorado Springs, CO · Accident · Minor injuries · Data collection · Final report · Feb 4, 2012 · N2696C · Substantial damage
  > The pilot did not extend the landing gear before landing.
- [NTSB CEN10LA524](https://openairdocs.org/ntsb/CEN10LA524.md): Piper PA-46-350P · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Aug 24, 2010 · N4167A · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN09CA343](https://openairdocs.org/ntsb/CEN09CA343.md): Cessna 404 · Englewood, CO · Accident · No injuries · Data collection · Final report · Jun 6, 2009 · N37127 · Substantial damage
  > The failure of the landing gear to extend due to the failure of a hydraulic line.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/ntsb-events/095/sequence?state=CO

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