# NTSB investigations, 2011, CO

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.

Page 1 of 2 · 54 cases

## Latest cases

- [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 ENG12IA013](https://openairdocs.org/ntsb/ENG12IA013.md): Beech 1900D · Denver International Airport, CO · Incident · No injuries · Incident investigation · Final report · Dec 3, 2011 · N247GL · Minor damage
  > A failure of the nose landing gear end cap due to fatigue. Contributing to the failure were the ineffective inspection and the unknown effect of grain direction on fatigue life.
- [NTSB CEN12FA098](https://openairdocs.org/ntsb/CEN12FA098.md): Socata TB21 · Silverton, CO · Accident · 4 fatal · Field investigation · Final report · Dec 3, 2011 · N25153 · Substantial damage
  > The non-instrument-rated pilot’s decision to embark on a flight through forecasted instrument meteorological conditions (IMC), and his subsequent flight into IMC, which resulted in the pilot’s spatial disorientation and subsequent maneuvering of the airplane…
- [NTSB CEN12CA093](https://openairdocs.org/ntsb/CEN12CA093.md): Remos Remos GX · Fort Collins, CO · Accident · No injuries · Data collection · Final report · Nov 28, 2011 · N835FS · Substantial damage
  > The pilot's improper landing flare.
- [NTSB CEN12CA075](https://openairdocs.org/ntsb/CEN12CA075.md): Globe GC-1B · Denver, CO · Accident · No injuries · Data collection · Final report · Nov 19, 2011 · N80775 · Substantial damage
  > A loss of engine power due to fuel starvation as a result of a loose fuel line fitting.
- [NTSB CEN12FA058](https://openairdocs.org/ntsb/CEN12FA058.md): Cessna 337G · Alamosa, CO · Accident · 1 fatal · Field investigation · Final report · Nov 10, 2011 · N337LC · Destroyed
  > The loss of power to the rear engine due to fuel starvation during takeoff, which resulted from the fuel selector valve being inadvertently moved to the “off” position, and resulted in the airplane’s inability to climb.
- [NTSB CEN12CA041](https://openairdocs.org/ntsb/CEN12CA041.md): Diamond Aircraft Ind DA 20-C1 · Pueblo, CO · Accident · No injuries · Data collection · Final report · Oct 24, 2011 · N942DA · Substantial damage
  > The certified flight instructor’s delayed remedial action. Contributing to the accident was the student pilot's failure to maintain control prior to the landing.
- [NTSB CEN12CA011](https://openairdocs.org/ntsb/CEN12CA011.md): Cirrus Design SR20 · Englewood, CO · Accident · No injuries · Data collection · Final report · Oct 11, 2011 · N777XG · Substantial damage
  > The student pilot's improper flare, which resulted in a bounced landing from which he was unable to recover.
- [NTSB CEN12CA005](https://openairdocs.org/ntsb/CEN12CA005.md): Campbell John Mustang II · Brush, CO · Accident · No injuries · Data collection · Final report · Oct 2, 2011 · N287BM · Substantial damage
  > The pilot’s failure to maintain directional control during taxi, which resulted in a runway excursion.
- [NTSB ENG11IA051](https://openairdocs.org/ntsb/ENG11IA051.md): Boeing 757-222 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Sep 26, 2011 · N526UA · Minor damage
  > **This probable cause was modified on 4/5/2012. Please see the public docket for this accident to view the original probable cause.** The initial damage to the fan blades was caused by the ingestion of a Red-Tailed Hawk that caused one or more fan blades to…
- [NTSB CEN11CA678](https://openairdocs.org/ntsb/CEN11CA678.md): Piper PA-28-180 · Buena Vista, CO · Accident · Minor injuries · Data collection · Final report · Sep 6, 2011 · N9430J · Substantial damage
  > The airplane’s diminished climb performance due to the pilot not leaning the engine mixture enough prior to takeoff in high density altitude conditions and at nearly maximum gross takeoff weight.
- [NTSB CEN11CA677](https://openairdocs.org/ntsb/CEN11CA677.md): Piper PA-22-108 · Monte Vista, CO · Accident · No injuries · Data collection · Final report · Sep 4, 2011 · N5934Z · Substantial damage
  > The student pilot's loss of control while landing, which resulted in a ground loop.
- [NTSB CEN11CA662](https://openairdocs.org/ntsb/CEN11CA662.md): Piper PA-30 · Saguache, CO · Accident · No injuries · Data collection · Final report · Aug 26, 2011 · N75BA · Substantial damage
  > The pilot's failure to maintain airplane control during the aborted takeoff.
- [NTSB CEN11CA620](https://openairdocs.org/ntsb/CEN11CA620.md): Cessna T210M · Kremmling, CO · Accident · No injuries · Data collection · Final report · Aug 26, 2011 · N761NX · Substantial damage
  > The pilot's failure to maintain aircraft control during the landing.
- [NTSB CEN11FA559](https://openairdocs.org/ntsb/CEN11FA559.md): Cessna 182C · Boulder, CO · Accident · Minor injuries · Field investigation · Final report · Aug 9, 2011 · N8717T · Substantial damage
  > The malfunction of the throttle linkage to the induction air box, which resulted in a loss of engine power and subsequent forced landing.
- [NTSB CEN11FA572](https://openairdocs.org/ntsb/CEN11FA572.md): Ferguson Fergy 1 · Falcon, CO · Accident · Serious injuries · Field investigation · Final report · Aug 6, 2011 · N2515E · Substantial damage
  > A loss of control for undetermined reasons.
- [NTSB CEN11CA550](https://openairdocs.org/ntsb/CEN11CA550.md): Attaway Robert H RV6A · Colorado Springs, CO · Accident · Serious injuries · Data collection · Final report · Aug 5, 2011 · N675RE · Substantial damage
  > The pilot's failure to maintain control while landing.
- [NTSB CEN11CA517](https://openairdocs.org/ntsb/CEN11CA517.md): Kubicek BB85 · Hartsel, CO · Accident · Serious injuries · Data collection · Final report · Jul 27, 2011 · N1545T · No damage
  > The pilot's encounter with high wind which resulted in a hard landing and passenger injury.
- [NTSB CEN11CA519](https://openairdocs.org/ntsb/CEN11CA519.md): Aero SP Z O O AT-4 LSA · Colorado Springs, CO · Accident · No injuries · Data collection · Final report · Jul 26, 2011 · N1277K · Substantial damage
  > The pilot's failure to maintain proper approach speed and his inadequate recovery from a bounced landing.
- [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 CEN11CA520](https://openairdocs.org/ntsb/CEN11CA520.md): Cameron Balloons US AX10 · Clark, CO · Accident · Serious injuries · Data collection · Final report · Jul 22, 2011 · N2012J · No damage
  > The pilot's encounter with high wind which resulted in a hard landing and passenger injury.
- [NTSB CEN11CA492](https://openairdocs.org/ntsb/CEN11CA492.md): Cessna 182S · Meeker, CO · Accident · No injuries · Data collection · Final report · Jul 19, 2011 · N314FR · Substantial damage
  > The pilot's inadvertent flight into a downdraft, which resulted in an in-flight collision with trees.
- [NTSB CEN11LA487](https://openairdocs.org/ntsb/CEN11LA487.md): Ayres S2R · Burlington, CO · Accident · No injuries · Limited investigation · Final report · Jul 18, 2011 · N70216 · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN11CA485](https://openairdocs.org/ntsb/CEN11CA485.md): Bellanca 8KCAB · Greeley, CO · Accident · No injuries · Data collection · Final report · Jul 16, 2011 · N731JD · Substantial damage
  > The pilot's loss of directional control during landing, resulting in a runway excursion.
- [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 CEN11LA490](https://openairdocs.org/ntsb/CEN11LA490.md): Darrow Stephen AL-6 · Peyton, CO · Accident · No injuries · Limited investigation · Final report · Jul 13, 2011 · N61262 · Substantial damage
  > The loss of engine power during the descent for reasons that could not be determined because a thorough examination of the engine could not be completed due to the remote accident site.
- [NTSB CEN11FA465](https://openairdocs.org/ntsb/CEN11FA465.md): Pipistrel Taurus · Durango, CO · Accident · 1 fatal · Field investigation · Final report · Jul 8, 2011 · N261T · Substantial damage
  > The pilot’s loss of control during the off-airport landing in strong winds, which resulted in a hard landing.
- [NTSB CEN11FA444](https://openairdocs.org/ntsb/CEN11FA444.md): Boeing B75N1 · Wetmore, CO · Accident · 1 fatal · Field investigation · Final report · Jul 3, 2011 · N4473N · Substantial damage
  > The pilot's failure to maintain clearance from terrain while maneuvering at low altitude.
- [NTSB CEN11FA428](https://openairdocs.org/ntsb/CEN11FA428.md): Cessna R182 · Thornton, CO · Accident · 1 fatal · Field investigation · Final report · Jun 29, 2011 · N2344C · Substantial damage
  > The pilot's inadvertent encounter with a microburst while operating at a low altitude, which resulted in a loss of control from which the pilot could not recover. Contributing to the accident was the pilot’s inadequate preflight planning for the forecasted…
- [NTSB CEN11LA457](https://openairdocs.org/ntsb/CEN11LA457.md): Beech B36TC · Akron, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 23, 2011 · N93PP · Substantial damage
  > The mixture control cable disconnected from the cable housing attach clamp, which resutlted in the pilot's inability to add power when needed.
- [NTSB CEN11CA392](https://openairdocs.org/ntsb/CEN11CA392.md): Cessna 172S · Cortez, CO · Accident · No injuries · Data collection · Final report · Jun 14, 2011 · N6017J · Substantial damage
  > The pilot's failure to maintain aircraft control while landing in gusty crosswind conditions.
- [NTSB CEN11CA410](https://openairdocs.org/ntsb/CEN11CA410.md): Taft, Malcolm J SR Glastar · Canon City, CO · Accident · No injuries · Data collection · Final report · Jun 6, 2011 · N238W · Substantial damage
  > A loss of engine power due to an overheated engine as a result of a malfunction of the modified engine cooling system, necessitating a forced landing on unsuitable terrain.
- [NTSB CEN11LA361](https://openairdocs.org/ntsb/CEN11LA361.md): Flournoy Martin R Flournoy MR S1S · Colorado Springs, CO · Accident · No injuries · Limited investigation · Final report · May 22, 2011 · N457CF · Substantial damage
  > The pilot’s loss of directional control during the landing rollout due to failure of the tailwheel assembly for undetermined reasons.
- [NTSB CEN11FA346](https://openairdocs.org/ntsb/CEN11FA346.md): Hansen IB C Cassutt III M · Erie, CO · Accident · 1 fatal · Field investigation · Final report · May 22, 2011 · N420FH · Substantial damage
  > The pilot's incapacitation due to a cardiac event.
- [NTSB CEN11LA357](https://openairdocs.org/ntsb/CEN11LA357.md): Cessna T210M · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · May 21, 2011 · N6850B · Substantial damage
  > Failure 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 CEN11CA360](https://openairdocs.org/ntsb/CEN11CA360.md): Lammers Sjef J Apache · Colorado Springs, CO · Accident · Serious injuries · Data collection · Final report · May 20, 2011 · N566RL · Substantial damage
  > The pilot's failure to maintain control of the aircraft during take-off in a cross wind, which resulted in an inadvertent stall.
- [NTSB CEN11IA341](https://openairdocs.org/ntsb/CEN11IA341.md): Beech 1900D · Denver, CO · Incident · No injuries · Incident investigation · Final report · May 17, 2011 · N218YV · Minor damage
  > The 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…
- [NTSB CEN11CA325](https://openairdocs.org/ntsb/CEN11CA325.md): Robinson Helicopter R44 II · Golden, CO · Accident · No injuries · Data collection · Final report · May 8, 2011 · N921JM · Substantial damage
  > The pilot’s decision to operate the helicopter at a high density altitude near terrain, which resulted in a settling with power condition.
- [NTSB CEN11LA323](https://openairdocs.org/ntsb/CEN11LA323.md): Air Tractor AT-402A · Arriba, CO · Accident · Serious injuries · Limited investigation · Final report · May 5, 2011 · N5192F · Substantial damage
  > The pilot’s controlled flight into terrain for undetermined reasons.
- [NTSB CEN11FA304](https://openairdocs.org/ntsb/CEN11FA304.md): Cubcrafters CC11-160 · Parker, CO · Accident · 2 fatal · Field investigation · Final report · Apr 23, 2011 · N143FJ · Substantial damage
  > The pilot’s excessive and unsafe maneuvering during gusty wind conditions, which resulted in an inadvertent stall-spin.
- [NTSB CEN11CA284](https://openairdocs.org/ntsb/CEN11CA284.md): Piper PA38 · Peyton, CO · Accident · No injuries · Data collection · Final report · Apr 13, 2011 · N107WC · Substantial damage
  > The pilot's loss of directional control during landing.
- [NTSB CEN11CA289](https://openairdocs.org/ntsb/CEN11CA289.md): Rans S12 · Fort Collins, CO · Accident · Minor injuries · Data collection · Final report · Apr 9, 2011 · N3581S · Substantial damage
  > The pilot's inadvertent application of full right rudder during landing, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB CEN11CA261](https://openairdocs.org/ntsb/CEN11CA261.md): Cessna 172N · Colorado Springs, CO · Accident · No injuries · Data collection · Final report · Apr 3, 2011 · N3484E · Substantial damage
  > The pilot loss of directional control during landing in gusty crosswind conditions.
- [NTSB CEN11LA266](https://openairdocs.org/ntsb/CEN11LA266.md): Cessna 172RG · Wellington, CO · Accident · No injuries · Limited investigation · Final report · Apr 2, 2011 · N4914V · Substantial damage
  > The certified flight instructor's failure to maintain directional control during the go-around.
- [NTSB CEN11FA259](https://openairdocs.org/ntsb/CEN11FA259.md): Burkhart Grob Flugzeugbau G102 Club Astir Iiib · Boulder, CO · Accident · 1 fatal · Field investigation · Final report · Apr 1, 2011 · N633BG · Substantial damage
  > The pilot's incapacitation for undetermined reasons, which resulted in a loss of control.
- [NTSB CEN11CA268](https://openairdocs.org/ntsb/CEN11CA268.md): Cub Crafters CC11-160 · Kiowa, CO · Accident · Minor injuries · Data collection · Final report · Mar 23, 2011 · N144LP · Substantial damage
  > The pilot's failure to maintain directional control following a hard landing.
- [NTSB CEN11LA239](https://openairdocs.org/ntsb/CEN11LA239.md): Glasflugel Standard Libelle · Wellington, CO · Accident · 1 fatal · Limited investigation · Final report · Mar 20, 2011 · N99AE · Substantial damage
  > The pilot's loss of glider control due to impairment or incapacitation caused by an episode of ventricular tachycardia.
- [NTSB CEN11CA225](https://openairdocs.org/ntsb/CEN11CA225.md): Ams-Flight D.O.O. DG-500 Elan Orion · Boulder, CO · Accident · No injuries · Data collection · Final report · Mar 14, 2011 · N505KK · Substantial damage
  > The in flight loss of lift while landing, resulting in a collision with a fence.
- [NTSB CEN11GA218](https://openairdocs.org/ntsb/CEN11GA218.md): Hughes 369D · Meeker, CO · Accident · Minor injuries · Final report · Mar 8, 2011 · N131AL · Substantial damage
  > Main rotor contact with the tail boom resulting in tail boom separation.
- [NTSB CEN11CA213](https://openairdocs.org/ntsb/CEN11CA213.md): Robinson Helicopter R44 II · Glenwood Springs, CO · Accident · No injuries · Data collection · Final report · Mar 1, 2011 · N74816 · Substantial damage
  > The pilot’s improper takeoff procedure, which resulted in a dynamic rollover when the left skid contacted the ground.

Next page: https://openairdocs.org/ntsb.md?year=2011&state=CO&page=2

## 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 year(c."eventDate") = 2011
  AND c."eventStateOrRegion" = 'CO' AND c."eventCountry" = 'USA'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?state=CO&year=2011

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