# NTSB investigations, CO: Miscellaneous/other

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 WPR26LA273](https://openairdocs.org/ntsb/WPR26LA273.md): Schweizer SGS 2-33A · Boulder, CO · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 7, 2026 · N2793H · Substantial damage
  > The pilot’s improper landing flare which resulted in a stall and a hard bounced landing.
- [NTSB CEN26LA133](https://openairdocs.org/ntsb/CEN26LA133.md): Cessna 172S · Denver, CO · Accident · No injuries · Class 4 · Limited · Final report · Feb 28, 2026 · N1071Z · Substantial damage
  > The solo student pilot's improper landing flare and subsequent improper recovery from a bounced landing which resulted in substantial damage to the airplane.
- [NTSB CEN26LA108](https://openairdocs.org/ntsb/CEN26LA108.md): Adams Balloon A55S · Durango, CO · Accident · Serious injuries · Class 4 · Limited · Final report · Jan 30, 2026 · N4010K · No damage
  > The ground crewmember’s failure to immediately let go of the balloon after it began an inadvertent climb while landing.
- [NTSB CEN26LA067](https://openairdocs.org/ntsb/CEN26LA067.md): Mark O Treidel American Ranger AR-1 · Denver, CO · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2025 · N529MW · Substantial damage
  > The pilot’s failure to attain rotor RPM and maintain proper rotor disc angle during takeoff which resulted in a rotor strike with the rudder.
- [NTSB CEN24LA302](https://openairdocs.org/ntsb/CEN24LA302.md): Arbc Inc DBA Lindstrand 260A · Colorado Springs, CO · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 2, 2024 · N26464 · No damage
  > The pilot’s failure to maintain the proper descent rate during the balloon’s approach to landing, which resulted in a hard landing.
- [NTSB CEN24LA328](https://openairdocs.org/ntsb/CEN24LA328.md): Hawker Beechcraft Hawker 900XP · Telluride, CO · Accident · No injuries · Class 3 · Limited · Final report · Jul 20, 2024 · N526FC · Substantial damage
  > The flight crew’s failure to properly configure the airplane for takeoff in a high-density altitude environment, which resulted in a loss of control and a subsequent runway excursion. Contributing to the accident was the flight crew’s failure to use…
- [NTSB CEN23LA397](https://openairdocs.org/ntsb/CEN23LA397.md): Titanium Auto Gyro Titanium Explorer · Falcon, CO · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 4, 2023 · N467TE · Substantial damage
  > The pilot’s failure to establish a proper airspeed before becoming airborne, which resulted in an inability to climb out of ground effect and subsequent hard landing. Contributing to the accident was high-density altitude.
- [NTSB CEN21LA315](https://openairdocs.org/ntsb/CEN21LA315.md): Cessna 421C · Longmont, CO · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 10, 2021 · N66NC · Substantial damage
  > The loss of performance for reasons that could not be determined.
- [NTSB CEN20LA169](https://openairdocs.org/ntsb/CEN20LA169.md): Rans S-12 · Delta, CO · Accident · 1 fatal · Class 3 · Limited · Final report · May 3, 2020 · N427LB · Destroyed
  > The pilot’s exceedance of the airplane’s critical angle of attack during a test flight which resulted in an aerodynamic stall and impact with terrain.
- [NTSB CEN20CA139](https://openairdocs.org/ntsb/CEN20CA139.md): Rans S-12 Airaile · Hillrose, CO · Accident · Serious injuries · Data collection · Final report · Apr 4, 2020 · UNREG · Substantial damage
  > The noncertificated pilot's diverted attention while looking at a fire during low-altitude flying, which resulted in a collision with power lines.
- [NTSB CEN20FA072](https://openairdocs.org/ntsb/CEN20FA072.md): Piper PA28 · Florence, CO · Accident · 1 fatal · Class 3 · Field · Final report · Feb 2, 2020 · N5969W · Substantial damage
  > The pilot’s decision to continue the takeoff with reduced airplane performance due to high density altitude
- [NTSB GAA19CA306](https://openairdocs.org/ntsb/GAA19CA306.md): Cirrus SR22 · Denver, CO · Accident · No injuries · Data collection · Final report · Jun 2, 2019 · N581SD · Substantial damage
  > The pilot's improper control inputs on approach, which resulted in a hard landing near the runway edge, a runway excursion, and impact with runway lighting. Contributing to the accident was the flight instructor's delayed remedial action.
- [NTSB GAA18CA544](https://openairdocs.org/ntsb/GAA18CA544.md): Halladay Roy Lockheed · Denver, CO · Accident · No injuries · Data collection · Final report · Sep 9, 2018 · N514RH · Substantial damage
  > The pilot's failure to verify that the emergency canopy release was in the correct position when opening the canopy during landing, which resulted in the canopy separating from the airplane and subsequently impacting the empennage.
- [NTSB GAA18CA486](https://openairdocs.org/ntsb/GAA18CA486.md): Bushby Mustang II · Akron, CO · Accident · No injuries · Data collection · Final report · Aug 11, 2018 · N527JT · Substantial damage
  > The pilot’s improper preflight planning that did not identify the unserviceable runway; his subsequent decision to attempt to takeoff from the rough, grassy runway; and his selection of an abort point with insufficient runway remaining, which resulted in a…
- [NTSB CEN18CA323](https://openairdocs.org/ntsb/CEN18CA323.md): Cessna 172 · Greeley, CO · Accident · No injuries · Data collection · Final report · Aug 9, 2018 · N20JA · Substantial damage
  > The pilot’s and safety pilot's conflicting control inputs during landing, which resulted in their failure to maintain a proper airspeed and resulted in an aerodynamic stall. Contributing to the accident was the lack of communication between the pilot and…
- [NTSB GAA18CA473](https://openairdocs.org/ntsb/GAA18CA473.md): Vans RV6 · Greeley, CO · Accident · Serious injuries · Data collection · Final report · Aug 4, 2018 · N56LK · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during approach, which resulted in an aerodynamic stall.
- [NTSB CEN17LA340](https://openairdocs.org/ntsb/CEN17LA340.md): Cessna 310G · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Sep 1, 2017 · N8957Z · Substantial damage
  > A 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 CEN17LA274](https://openairdocs.org/ntsb/CEN17LA274.md): Endler Glasair/Glasair 1-Td SH2 · Colorado Springs, CO · Accident · No injuries · Limited investigation · Final report · Jul 15, 2017 · N181AL · Destroyed
  > The pilot's failure to lock the castering tailwheel in accordance with the airplane Owner's Manual and a checklist item and to abort the takeoff after the airplane exceeded its normal takeoff distance and/or reached the limit of the rudder control authority…
- [NTSB CEN17IA155](https://openairdocs.org/ntsb/CEN17IA155.md): Cessna 172RG · Greeley, CO · Incident · No injuries · Incident investigation · Final report · Mar 20, 2017 · N6402V · Minor damage
  > Failure of the left main landing gear actuator assembly, which resulted in an inability to extend the left main landing gear.
- [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 GAA17CA016](https://openairdocs.org/ntsb/GAA17CA016.md): Robinson Stewart J Bearhawk · Calhan, CO · Accident · No injuries · Data collection · Final report · Oct 7, 2016 · N507SR · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion.
- [NTSB CEN16FA331](https://openairdocs.org/ntsb/CEN16FA331.md): Stemme S10 VT · Telluride, CO · Accident · 2 fatal · Field investigation · Final report · Aug 24, 2016 · N5021 · Substantial damage
  > The pilot's encounter with a downdraft that exceeded the climb performance of the powered glider and resulted in his inability to maintain clearance from the trees. Contributing to the accident was the pilot's decision to fly near building clouds and rain…
- [NTSB GAA16CA394](https://openairdocs.org/ntsb/GAA16CA394.md): Alon A2 · Alamosa, CO · Accident · No injuries · Data collection · Final report · Jul 27, 2016 · N5690F · Substantial damage
  > The pilot's failure to maintain aircraft control during takeoff on an uneven runway surface, which resulted in it becoming airborne prematurely, an aerodynamic stall, and impact with terrain.
- [NTSB CEN16LA247](https://openairdocs.org/ntsb/CEN16LA247.md): Beech E 90 · Longmont, CO · Accident · Serious injuries · Limited investigation · Final report · Jun 26, 2016 · N92DV · Substantial damage
  > The pilot's unintentional activation of the green jump light before the airplane was properly configured and slowed for a jump and the jumpers' improper decision to continue with the jump after they recognized that the airplane was at a higher-than-normal…
- [NTSB GAA16CA060](https://openairdocs.org/ntsb/GAA16CA060.md): Beech 56 · Hudson, CO · Accident · No injuries · Data collection · Final report · Nov 22, 2015 · N12WB · Substantial damage
  > The pilot's failure to maintain directional control during the landing. Contributing to the accident was the distraction of the open cabin door.
- [NTSB CEN15CA312](https://openairdocs.org/ntsb/CEN15CA312.md): Eurocopter EC 130 B4 · Somerset, CO · Accident · No injuries · Data collection · Final report · Jul 3, 2015 · N974BR · Substantial damage
  > The pilot's decision to fly at a low altitude when he was aware that there were wires in the area which resulted in the helicopter contacting a wire.
- [NTSB CEN15LA004](https://openairdocs.org/ntsb/CEN15LA004.md): Celier Xenon R · Loma, CO · Accident · 2 fatal · Limited investigation · Final report · Oct 5, 2014 · N719MB · Substantial damage
  > The pilot’s failure to maintain clearance from a static wire and his decision to maneuver the gyroplane at low altitude.
- [NTSB CEN14IA139](https://openairdocs.org/ntsb/CEN14IA139.md): Cirrus Design SR22 · Gunnison, CO · Incident · No injuries · Incident investigation · Final report · Feb 14, 2014 · N18DN · Minor damage
  > The pilot's improper decision to initiate the flight into an area with forecast icing conditions, which resulted in an encounter with in-flight icing conditions that prevented the airplane from being able to maintain altitude.
- [NTSB CEN14CA018](https://openairdocs.org/ntsb/CEN14CA018.md): Beech A36 · Telluride, CO · Accident · No injuries · Data collection · Final report · Oct 13, 2013 · N26RG · Substantial damage
  > The pilot's decision to take off in gusting tailwinds resulting in exceeding the performance capabilities of the airplane and subsequent loss of control.
- [NTSB CEN12IA123](https://openairdocs.org/ntsb/CEN12IA123.md): Boeing 737-7H4 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Dec 22, 2011 · N469WN · Minor damage
  > The snowplow operator’s incapacitation due to fatigue, which resulted in the snowplow contacting a parked airplane. Contributing to the incident was the company’s lack of a policy regarding employee fatigue.
- [NTSB CEN11CA511](https://openairdocs.org/ntsb/CEN11CA511.md): Robinson Helicopter R44 II · Broomfield, CO · Accident · No injuries · Data collection · Final report · Jul 23, 2011 · N915BW · Substantial damage
  > A loss of control due to the pilot's diverted attention as a result of an open door.
- [NTSB CEN11FA479](https://openairdocs.org/ntsb/CEN11FA479.md): Cessna 150L · Silverton, CO · Accident · 2 fatal · Field investigation · Final report · Jul 14, 2011 · N1539Q · Substantial damage
  > The pilot's failure to maintain control of the airplane while operating it at low levels above mountainous terrain and in excess of its maximum allowable gross weight, which resulted in an aerodynamic stall. The pilot's failure to maintain control resulted…
- [NTSB CEN11CA170](https://openairdocs.org/ntsb/CEN11CA170.md): Cessna 182 · Meeker, CO · Accident · No injuries · Data collection · Final report · Jan 29, 2011 · N7199E · Substantial damage
  > The pilot’s loss of directional control while taxiing due to his improper seat position.
- [NTSB CEN10CA444](https://openairdocs.org/ntsb/CEN10CA444.md): Brewster Fleet 7-220 · Manzanola, CO · Accident · No injuries · Data collection · Final report · Jul 28, 2010 · N798V · Substantial damage
  > A collision with a hidden obstruction during the landing roll.
- [NTSB CEN10CA376](https://openairdocs.org/ntsb/CEN10CA376.md): Wells Terry Hula Girl · Wellington, CO · Accident · No injuries · Data collection · Final report · Jul 3, 2010 · N301TW · Substantial damage
  > A partial loss of engine power due to the inadequate design of the engine cowling.
- [NTSB CEN10FA021](https://openairdocs.org/ntsb/CEN10FA021.md): Cessna P210N · Rifle, CO · Accident · Minor injuries · Field investigation · Final report · Oct 18, 2009 · N7217S · Substantial damage
  > The pilot’s failure to properly identify the power lever and, instead, manipulating the propeller condition lever.
- [NTSB CEN09LA278](https://openairdocs.org/ntsb/CEN09LA278.md): Glasflugel H201B · Meadow Lake Airport, CO · Accident · Serious injuries · Limited investigation · Final report · May 4, 2009 · N17TD · Substantial damage
  > A programming anomaly within the winch's computer aided launch control system, which incorrectly limited the maximum winch speed during launch of the glider.
- [NTSB CEN09CA257](https://openairdocs.org/ntsb/CEN09CA257.md): Enstrom 280FX · Dacono, CO · Accident · No injuries · Data collection · Final report · Apr 20, 2009 · N409LH · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB CEN09IA153](https://openairdocs.org/ntsb/CEN09IA153.md): New Piper PA-46-500T · Aspen, CO · Incident · No injuries · Incident investigation · Final report · Feb 4, 2009 · N535JR · Minor damage
  > The pilot's inability to maintain directional control of the airplane during landing for undetermined reasons.
- [NTSB CEN09LA207](https://openairdocs.org/ntsb/CEN09LA207.md): Hall Steven C Lancair LE · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Jan 31, 2009 · N939CB · Substantial damage
  > The pilot's failure to maintain aircraft pitch control resulting in the airplane impacting the terrain. Contributing to the accident were the pilot's failure to ensure the canopy was fully locked prior to takeoff and the canopy oscillations in flight.
- [NTSB CEN09LA075](https://openairdocs.org/ntsb/CEN09LA075.md): Hauser U/Hauser J KIT FOX CL · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · Nov 24, 2008 · N4JU · Substantial damage
  > A loss of engine thrust due to the pilot's inadvertent activation of the propeller controls. Contributing to the accident were the non-standard propeller controls and the pilot's lack of experience in the airplane.
- [NTSB LAX08CA209](https://openairdocs.org/ntsb/LAX08CA209.md): Aerostar International S-77A · Boulder, CO · Accident · Minor injuries · Data collection · Final report · Jul 2, 2008 · N9014W · Substantial damage
  > An encounter with a sudden gust of wind, which rendered the balloon uncontrollable and led to a collision with a tree.

## 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" = '900' 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/900/sequence?state=CO

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.