# NTSB investigations, 1990, 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 · 78 cases

## Latest cases

- [NTSB DEN91LA029](https://openairdocs.org/ntsb/DEN91LA029.md): Cessna T210N · Aspen, CO · Accident · Minor injuries · Limited investigation · Final report · Dec 29, 1990 · N1604U · Substantial damage
  > Fuel exhaustion induced power loss resultant from faulty fuel caps and fuel syphoning.
- [NTSB DEN91IA028](https://openairdocs.org/ntsb/DEN91IA028.md): Boeing 727-22 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Dec 20, 1990 · N40486 · Minor damage
  > Failure of an engine bearing.
- [NTSB DEN91IA026](https://openairdocs.org/ntsb/DEN91IA026.md): British Aerospace BAE 146-200 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Dec 15, 1990 · N609AW · Minor damage
  > The catastrophic failure of the no.12 blade on the 4th stage turbine wheel, and failure of company maintenance personnel to identify the preexisting crack during maintenance inspection.
- [NTSB DEN91LA021](https://openairdocs.org/ntsb/DEN91LA021.md): Gulfstream AA-5B · Erie, CO · Accident · No injuries · Limited investigation · Final report · Nov 25, 1990 · N4557E · Substantial damage
  > Improper flare by the pilot, which resulted in a hard landing. A realted factor was: low light condition at dusk.
- [NTSB DEN91IA019](https://openairdocs.org/ntsb/DEN91IA019.md): Beech J-35 · Brighton, CO · Incident · No injuries · Incident investigation · Final report · Nov 18, 1990 · N8263D · Minor damage
  > The failure of the engine fuel feed line resulting in a complete loss of power. Contributing to the incident was improper installation of the fuel feed transducer.
- [NTSB DEN91FA017](https://openairdocs.org/ntsb/DEN91FA017.md): Cessna T210L · Aspen, CO · Accident · 4 fatal · Field investigation · Final report · Nov 12, 1990 · N732DS · Destroyed
  > Improper planning/decision by the pilot and his failure to maintain adequate airspeed, while turning over high terrain beside the airport, which resulted in an inadvertent stall. Factors related to the accident were: excessive gross weight of the aircraft,…
- [NTSB DEN91LA016](https://openairdocs.org/ntsb/DEN91LA016.md): Fogarty Pitts S1SEW · Bennett, CO · Accident · No injuries · Limited investigation · Final report · Nov 11, 1990 · N87PF · Substantial damage
  > The pilot's failure to refuel the airplane and the resultant fuel exhaustion induced power loss. A factor was the soft terrain in which the forced landing was performed.
- [NTSB DEN91LA014](https://openairdocs.org/ntsb/DEN91LA014.md): Cessna T-210-M · Buena Vista, CO · Accident · Minor injuries · Limited investigation · Final report · Oct 29, 1990 · N621BD · Substantial damage
  > The pilot misjudged the fuel supply resulting in fuel exhaustion.
- [NTSB DEN91FA012](https://openairdocs.org/ntsb/DEN91FA012.md): Cessna T210M · Carbondale, CO · Accident · 2 fatal · Field investigation · Final report · Oct 25, 1990 · N761TW · Destroyed
  > Failure of the pilot to see-and-avoid the power line.
- [NTSB DEN91LA011](https://openairdocs.org/ntsb/DEN91LA011.md): Cessna 172H · Buena Vista, CO · Accident · No injuries · Limited investigation · Final report · Oct 23, 1990 · N2665L · Substantial damage
  > The failure of the pilot to flare properly during landing. The pilot's total lack of experience is a factor.
- [NTSB DEN91LA009](https://openairdocs.org/ntsb/DEN91LA009.md): Beech 95-C55 · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Oct 18, 1990 · N2757T · Substantial damage
  > The pilot's inadvertent retraction of the landing gear. A factor was the pilot's lack of familiarity with the airplane.
- [NTSB DEN91LA008](https://openairdocs.org/ntsb/DEN91LA008.md): Piper PA-18-150 · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Oct 16, 1990 · N5523Z · Substantial damage
  > The failure of the pilot to maintain directional control.
- [NTSB DEN91LA006](https://openairdocs.org/ntsb/DEN91LA006.md): Cessna T210M · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Oct 10, 1990 · N565RA · Substantial damage
  > Engine failiure resulting from maintenance discrepancies.
- [NTSB DEN91FA005](https://openairdocs.org/ntsb/DEN91FA005.md): Beech P35 · Aurora, CO · Accident · Serious injuries · Field investigation · Final report · Oct 8, 1990 · N1568S · Substantial damage
  > Inadvertent stall. Factors were his decision to disregard in-flight weather advisories, continued flight into known adverse weather, and icing conditions and the flight into the known adverse weather.
- [NTSB DEN91DTM01](https://openairdocs.org/ntsb/DEN91DTM01.md): Historical A-001 · Durango, CO · Accident · Serious injuries · Final report · Oct 7, 1990 · N839 · Substantial damage
  > Engine failure due to carburetor ice. A factor in the accident was the lack of carburetor heat equipment installed in the aircraft.
- [NTSB DEN91LA004](https://openairdocs.org/ntsb/DEN91LA004.md): Piper PA-30B · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Oct 6, 1990 · N85VL · Substantial damage
  > The pilot's inadequate preflight inspection.
- [NTSB DEN91FA002](https://openairdocs.org/ntsb/DEN91FA002.md): Cessna T210N · Gypsum, CO · Accident · 1 fatal · Field investigation · Final report · Oct 3, 1990 · N6477N · Destroyed
  > The pilot flying into known adverse icing and thunderstorm weather conditions which resulted in the loss of control of the aircraft.
- [NTSB DEN90LA194](https://openairdocs.org/ntsb/DEN90LA194.md): Cessna 152 · Erie, CO · Accident · No injuries · Limited investigation · Final report · Sep 28, 1990 · N6581M · Destroyed
  > The student pilot's misjudgement of distance and altitude, and the instructor's inadequate supervision.
- [NTSB DEN90LA193](https://openairdocs.org/ntsb/DEN90LA193.md): Cessna 310J · Colorado Spring, CO · Accident · Serious injuries · Limited investigation · Final report · Sep 24, 1990 · N3132L · Substantial damage
  > The loss of power on one engine due to excessive fuel pressure and the pilot's feathering of the wrong propeller. Factor(s) were: operation of aircraft with known deficiencies by pilot and operator.
- [NTSB DEN90FA192](https://openairdocs.org/ntsb/DEN90FA192.md): Cessna 182P · Marble, CO · Accident · 1 fatal · Field investigation · Final report · Sep 22, 1990 · N9643G · Destroyed
  > Failure of the private pilot (student pilot) to maintain sufficient altitude and airspeed above mountainous terrain, and inadequate supervision by the instructor pilot (CFI) and her delay in taking remedial action. Factors related to the accident were: the…
- [NTSB DEN90IA189](https://openairdocs.org/ntsb/DEN90IA189.md): Boeing 737-222 · Denver, CO · Incident · Minor injuries · Incident investigation · Final report · Sep 19, 1990 · N9044U · No damage
  > The failure of the flight crew to follow emergency procedures/directives. Factors were the failure of the aircraft electrical system (relays) and the failure of the company to provide a jetway operator.
- [NTSB DEN90LA186](https://openairdocs.org/ntsb/DEN90LA186.md): Beech D17S · Englewood, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 14, 1990 · N16M · Substantial damage
  > Improper planning/decision by the pilot and inadequate visual lookout by the vehicle driver, which resulted in their failure to assure clearance between the vehicle and aircraft. Factors related to the accident were: sunglare and the pilot's restricted view…
- [NTSB DEN90LA185](https://openairdocs.org/ntsb/DEN90LA185.md): Cessna 172M · Parker, CO · Accident · No injuries · Limited investigation · Final report · Sep 11, 1990 · N1241U · Substantial damage
  > The dual student pilot's improper use of the aircraft power plant controls, resulted in a complete loss of engine power.
- [NTSB DEN90DTE08](https://openairdocs.org/ntsb/DEN90DTE08.md): Piper PA-25-235 · Idalia, CO · Accident · No injuries · Final report · Sep 11, 1990 · N9571P · Substantial damage
  > The encounter with an unfavorable wind, a dust devil. A factor was the inability of the pilot to maintain directional control.
- [NTSB DEN90LA181](https://openairdocs.org/ntsb/DEN90LA181.md): Cessna T210N · Durango, CO · Accident · No injuries · Limited investigation · Final report · Sep 5, 1990 · N5241C · Substantial damage
  > The loss of control of the airplane when the pilot encountered turbulence on short final to land.
- [NTSB DEN90LA180](https://openairdocs.org/ntsb/DEN90LA180.md): Bell 47G-3B1 · Canon City, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 2, 1990 · N73957 · Substantial damage
  > The pilot's failure to maintain an adequate pattern altitude and the possible existence of adverse winds due to the surrounding terrain.
- [NTSB DEN90DTE09](https://openairdocs.org/ntsb/DEN90DTE09.md): Trammel Avid Flyer · Trinidad, CO · Accident · No injuries · Final report · Aug 30, 1990 · N5002L · Substantial damage
  > The failure of the pilot to follow published procedures when he inadvertently shut off the magnetos while on final approach.
- [NTSB DEN90LA190](https://openairdocs.org/ntsb/DEN90LA190.md): Mooney M20B · Glenwood Spring, CO · Accident · No injuries · Limited investigation · Final report · Aug 25, 1990 · N74562 · Substantial damage
  > Wrong runway selection by the pilot, resulting in an overrun and a collision with a fence during landing roll. The prevailing tailwind, runway information and markings, and the pilot's failure to use the proper touchdown point are factors.
- [NTSB DEN90LA174](https://openairdocs.org/ntsb/DEN90LA174.md): Piper PA-28R201T · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Aug 25, 1990 · N31838 · Substantial damage
  > Loss of engine power due to fuel starvation for undetermined reasons resulting in a forced landing while the landing gear was still in transit.
- [NTSB DEN90DTE06](https://openairdocs.org/ntsb/DEN90DTE06.md): Cessna 188A · Holyoke, CO · Accident · Serious injuries · Final report · Aug 20, 1990 · N2080J · Destroyed
  > A stall mush which occurred when the pilot retracted the flaps prematurely following takeoff, causing the aircraft to settle into the ground.
- [NTSB DEN90DTE05](https://openairdocs.org/ntsb/DEN90DTE05.md): Cessna 188B · Eckley, CO · Accident · No injuries · Final report · Aug 20, 1990 · N4933Q · Substantial damage
  > A failure on the part of the pilot in command to maintain adequate terrain clearance.
- [NTSB DEN90DTE04](https://openairdocs.org/ntsb/DEN90DTE04.md): Olsen Pursuit · Fowler, CO · Accident · 2 fatal · Final report · Jul 23, 1990 · N23GG · Destroyed
  > Failure of the pilot to maintain adequate airspeed on final approach to land, which resulted in an inadvertent stall. A factor relate to the accident was: the pilot's physical impairment from carbon monoxide.
- [NTSB DEN90LA165](https://openairdocs.org/ntsb/DEN90LA165.md): Beech B-24-R · Cheyenne Wells, CO · Accident · No injuries · Limited investigation · Final report · Jul 18, 1990 · N2537W · Substantial damage
  > The pilot's improper recovery from a bounced landing. A factor was the pilot's failure to compensate for the existing cross wind.
- [NTSB FTW90FA141](https://openairdocs.org/ntsb/FTW90FA141.md): Piper PA-28-161 · Garfield, CO · Accident · 1 fatal · Field investigation · Final report · Jul 15, 1990 · N8102C · Destroyed
  > The pilot's decision to fly into the mountain pass and the subsequent inability to maintain adequate ground clearance.
- [NTSB DEN90LA160](https://openairdocs.org/ntsb/DEN90LA160.md): Cessna 180B · Akron, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1990 · N59KM · Substantial damage
  > The pilot's failure to correct a swerve during landing roll. A factor was wind gusts.
- [NTSB DEN90IA154](https://openairdocs.org/ntsb/DEN90IA154.md): Aerospatiale A-300B4 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Jul 4, 1990 · N72990 · Minor damage
  > Engine failure due to turbine wheel failure, induced by fatigue.
- [NTSB DEN90LA148](https://openairdocs.org/ntsb/DEN90LA148.md): Piper PA24-250 · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Jun 29, 1990 · N6391P · Substantial damage
  > The failure of the pilot to extend the landing gear for landing. Contributing factors were the pilot diverting his attention from the task at hand and failure to use a checklist.
- [NTSB DEN90LA147](https://openairdocs.org/ntsb/DEN90LA147.md): Weatherly 201B · Center, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 29, 1990 · N1255W · Substantial damage
  > The pilot's failure to maintain flying speed, which resulted in a stall and collsion with the ground.
- [NTSB DEN90LA150](https://openairdocs.org/ntsb/DEN90LA150.md): Cessna T 188C · Wray, CO · Accident · No injuries · Limited investigation · Final report · Jun 28, 1990 · N2870J · Substantial damage
  > The failure of the pilot to maintain proper alignment proper alignment during landing.
- [NTSB DEN90LA145](https://openairdocs.org/ntsb/DEN90LA145.md): Grumman AA5B · Monte Vista, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1990 · N28421 · Destroyed
  > The pilot's premature rotation and liftoff.
- [NTSB DEN90LA142](https://openairdocs.org/ntsb/DEN90LA142.md): Taylorcraft F-19 · Durango, CO · Accident · No injuries · Limited investigation · Final report · Jun 26, 1990 · N3667T · Substantial damage
  > A pilot induced stall. A factor was the pilot's lack of experience.
- [NTSB DEN90LA144](https://openairdocs.org/ntsb/DEN90LA144.md): Cessna C-152 · Golden, CO · Accident · Serious injuries · Limited investigation · Final report · Jun 24, 1990 · N757KL · Substantial damage
  > The pilot's disregard for airplane performance data. Contributing to the accident were high density altitude and the fact that airplane climb performance capability was exceeded.
- [NTSB DEN90LA134](https://openairdocs.org/ntsb/DEN90LA134.md): Cessna A185F · Erie, CO · Accident · No injuries · Limited investigation · Final report · Jun 13, 1990 · N8389Q · Substantial damage
  > Failure of the pilot receiving instruction to choose suitable terrain for the landing. Contributing to the accident was the cfi's inadequate supervision.
- [NTSB DEN90LA126](https://openairdocs.org/ntsb/DEN90LA126.md): Cessna 172 · Boulder, CO · Accident · No injuries · Limited investigation · Final report · Jun 7, 1990 · N2723E · Substantial damage
  > The pilot's failure to touch down at the proper point, his misjudgment of the distance required for takeoff following the touch and go, and his delayed decision to abort the takeoff.
- [NTSB DEN90FA120](https://openairdocs.org/ntsb/DEN90FA120.md): Cessna 170A · Dillon, CO · Accident · 1 fatal · Field investigation · Final report · Jun 3, 1990 · N3944V · Substantial damage
  > Improper planning/decision by the pilot, and his failure to maintain airspeed, which resulted in an inadvertent stall. Factors related to the accident were: the high density altitude and terrain conditions.
- [NTSB DEN90FA119](https://openairdocs.org/ntsb/DEN90FA119.md): Cessna 152 · Longmont, CO · Accident · 1 fatal · Field investigation · Final report · Jun 1, 1990 · N89834 · Destroyed
  > The pilot continued into hazardous weather conditions.
- [NTSB DEN90LA114](https://openairdocs.org/ntsb/DEN90LA114.md): Cessna 152 · Erie, CO · Accident · Minor injuries · Limited investigation · Final report · May 22, 1990 · N714UE · Substantial damage
  > Cfi's failure to ensure that the student pilot maintained sufficient airspeed, resulting in the inadvertent stall/mush. A factor was the downdraft experienced at low altitude after takeoff.
- [NTSB DEN90LA111](https://openairdocs.org/ntsb/DEN90LA111.md): Erco 415G · Peyton, CO · Accident · Minor injuries · Limited investigation · Final report · May 20, 1990 · N87212 · Substantial damage
  > Pilot's failure to maintain obstacle clearance during a landing.
- [NTSB DEN90FA109](https://openairdocs.org/ntsb/DEN90FA109.md): Cessna 210L · Telluride, CO · Accident · Serious injuries · Field investigation · Final report · May 19, 1990 · N2403S · Substantial damage
  > The pilot's ffailure to maintain flying speed which resulted in a stall. Factor was wind shear reported off departure end of rwy.
- [NTSB DEN90LA107](https://openairdocs.org/ntsb/DEN90LA107.md): Beech B-55 · Watkins, CO · Accident · Minor injuries · Limited investigation · Final report · May 8, 1990 · N113EW · Substantial damage
  > Executing of a simulated single engine approach in wind conditions that exceeded the demonstrated crosswind capability of the airplane with both engines operating.

Next page: https://openairdocs.org/ntsb.md?year=1990&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") = 1990
  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=1990

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