# NTSB investigations, CO: On ground/water encounter with terrain/water 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 DEN07CA057](https://openairdocs.org/ntsb/DEN07CA057.md): Smith, Ted Aerostar 601P · Craig, CO · Accident · No injuries · Data collection · Final report · Jan 21, 2007 · N88JE · Substantial damage > The pilot's improper in-flight planning and unsuitable area selected for landing. A contributing factor was the snow covered terrain and runway. - [NTSB DEN07CA007](https://openairdocs.org/ntsb/DEN07CA007.md): Huff Acro Sport I · Delta, CO · Accident · Minor injuries · Data collection · Final report · Oct 11, 2006 · N511SH · Substantial damage > the pilot's failure to select a touchdown point a safe distance from the construction crew, and his failure to maintain directional control of the airplane. Contributing factors in this accident included the pilot's limited forward visibility when the… - [NTSB DEN06IA051](https://openairdocs.org/ntsb/DEN06IA051.md): McDonnell Douglas DC-9-82 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Mar 21, 2006 · N574AA · Minor damage > the captain's failure to follow existing company procedures for stabilized approach. **This report was modified on May 23, 2007.** - [NTSB DEN05LA022](https://openairdocs.org/ntsb/DEN05LA022.md): Cirrus Design SR22 · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Oct 29, 2004 · N203RF · Substantial damage > The pilot’s inadequate compensation for wind and his failure to maintain aircraft control which resulted in a gear collapse due to an on-ground collision with terrain. Contributing factors were the wind shear, gusty wind conditions, and rough terrain. This… - [NTSB DEN04CA100](https://openairdocs.org/ntsb/DEN04CA100.md): Aeronca 7AC · Limon, CO · Accident · No injuries · Data collection · Final report · Jul 5, 2004 · N1480E · Substantial damage > the pilot's inadequate preflight planning/preparation. A contributing factor was the soft terrain in the takeoff area. - [NTSB DEN04LA042](https://openairdocs.org/ntsb/DEN04LA042.md): Piper PA-18-150 · Glade Park, CO · Accident · No injuries · Limited investigation · Final report · Jan 8, 2004 · N57534 · Substantial damage > the pilot's inadequate in-flight planning/decision. Contributing factors include the pilot's selection of unsuitable terrain for landing and the snow covered terrain. - [NTSB DEN02LA099](https://openairdocs.org/ntsb/DEN02LA099.md): Hildebrandt Rutan/Defiant · Erie, CO · Accident · No injuries · Limited investigation · Final report · Aug 20, 2002 · N219DF · Substantial damage > failure of the normal braking system, resulting in the airplane departing the end of the runway. A contributing factor was the airplane's slow acceleration during the takeoff roll. - [NTSB DEN99LA027](https://openairdocs.org/ntsb/DEN99LA027.md): Boeing 727-233 · Denver, CO · Accident · No injuries · Limited investigation · Final report · Dec 22, 1998 · N269FE · Substantial damage > Snow removal not done by other person. - [NTSB FTW98LA360](https://openairdocs.org/ntsb/FTW98LA360.md): Cessna 170 · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 16, 1998 · N2574V · Substantial damage > The pilot's intentional ground loop and his inadequate compensation for the wind condition. A contributng factor was crosswinds. - [NTSB FTW98LA222](https://openairdocs.org/ntsb/FTW98LA222.md): Mooney M20E · Watkins, CO · Accident · Minor injuries · Limited investigation · Final report · May 18, 1998 · N1306W · Substantial damage > The pilot's failure to maintain visual contact with the taxiway. Factors were the pilot's disabling the electrical system by turning off the master switch, a dark night, and excessive taxi speed. - [NTSB FTW96LA084](https://openairdocs.org/ntsb/FTW96LA084.md): Learjet 60 · Aspen, CO · Accident · No injuries · Limited investigation · Final report · Jan 6, 1996 · XAICA · Substantial damage > The pilot's improper in-flight decision to continue with the landing when the runway had not been positively identified. Factors were the snow-covered runway and landing area, sun glare, and the inadequate snow removal by airport personnel. - [NTSB FTW95LA389](https://openairdocs.org/ntsb/FTW95LA389.md): Cessna 150F · Salida, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 11, 1995 · N8554G · Substantial damage > Failure by the pilot to adequately plan the flight and the aircraft altitude capability. Factors are: high altitude, high density altitude, inadequate training in mountain flying, and lack of familiarity with the geographic area. - [NTSB FTW95LA378](https://openairdocs.org/ntsb/FTW95LA378.md): Maule M5-210C · Westcliffe, CO · Accident · No injuries · Limited investigation · Final report · Sep 2, 1995 · N51566 · Substantial damage > Failure by the pilot to maintain directional control of the aircraft during taxi. A factor was lack of experience in make and model aircraft. - [NTSB FTW95LA024](https://openairdocs.org/ntsb/FTW95LA024.md): Mooney M20C · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Oct 21, 1994 · N6958V · Substantial damage > Inadvertent landing gear retraction by the pilot flying the aircraft. A factor was inadequate supervision by the flight instructor. - [NTSB DEN93LA022](https://openairdocs.org/ntsb/DEN93LA022.md): Cessna T210L · Monte Vista, CO · Accident · No injuries · Limited investigation · Final report · Jan 9, 1993 · N96LL · Substantial damage > A loss of control during landing when the aircraft struck a snowbank which was left on the runway as a result of inadequate plowing. - [NTSB DEN92LA096](https://openairdocs.org/ntsb/DEN92LA096.md): Piper PA-28-180 · Craig, CO · Accident · No injuries · Limited investigation · Final report · Sep 26, 1992 · N7181W · Substantial damage > The pilot's failure to maintain directional control. - [NTSB DEN91LA109](https://openairdocs.org/ntsb/DEN91LA109.md): Beech V35 · Byers, CO · Accident · No injuries · Limited investigation · Final report · Aug 3, 1991 · N2751T · Substantial damage > The pilot's selection of an unsuitable landing site. Factors were: weather conditions and the ditch. - [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 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 DEN89LA133](https://openairdocs.org/ntsb/DEN89LA133.md): Cessna 182RG · Englewood, CO · Accident · No injuries · Limited investigation · Final report · May 24, 1989 · N999HP · Substantial damage > Failure of the pilot to follow warnings provided by a NOTAM & flags on the taxiway. Factors related to the accident were: darkness and the ditch. - [NTSB DEN89LA055](https://openairdocs.org/ntsb/DEN89LA055.md): Cessna 172 · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Jan 4, 1989 · N96319 · Substantial damage > Failure of the student pilot to maintain proper runway alignment during the landing roll. Factors related to the accident were: snow on the edges of the runway, the student's lack of total experience, and the snowbank. - [NTSB DEN88LA019](https://openairdocs.org/ntsb/DEN88LA019.md): Cessna 152 · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Nov 4, 1987 · N49209 · Substantial damage > The recently certificated private plt was taxiing his acft to rwy 9 for a night takeoff. Another acft began its takeoff roll on rwy 9. As a courtesy, the taxiing plt switched off his taxi light so as not to blind the other plt. The taxiing plt used the glow… - [NTSB DEN87LA028](https://openairdocs.org/ntsb/DEN87LA028.md): Cessna 152 · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Dec 14, 1986 · N4597L · Substantial damage > During landing, directional control was not maintained. The acft veered left, the landing gear entered a snowbank, and the acft nosed over. - [NTSB DEN86LA220](https://openairdocs.org/ntsb/DEN86LA220.md): Grumman G-164A · Center, CO · Accident · No injuries · Limited investigation · Final report · Aug 5, 1986 · N5324 · Substantial damage > The plt reported that he was landing on a 50 ft wide dirt strip and allowed the acft to drift to the left during the landing roll. The left wing collided with wheat growing along the left side of the strip and the acft swerved further to the left. During the… - [NTSB DEN86LA185](https://openairdocs.org/ntsb/DEN86LA185.md): Cessna 182P · New Castle, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1986 · N78764 · Substantial damage > Plt attempted to abort landing while on short final with 40 degrees of flaps. Plt decided that he would not clear trees at the FAR end of meadow so he executed a precautionary landing during which the acft struck a ditch and nosed over. The density altitude… - [NTSB DEN86FA080](https://openairdocs.org/ntsb/DEN86FA080.md): Boeing 737-300 · Denver, CO · Accident · No injuries · Field investigation · Final report · Feb 20, 1986 · N17309 · Substantial damage > F/o was on the 3rd initial operating experience flt with a check airman. Capt and f/o had discussed rapid rate of rotation on previous flts and again on accident flt. The f/o performed the takeoff from Denver and exceeded rotation rate of 3 degrees per sec.… - [NTSB DEN86LA051](https://openairdocs.org/ntsb/DEN86LA051.md): Cessna 172N · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Dec 20, 1985 · N7609F · Substantial damage > According to the student plt he made a normal apch to landing. The runway had not been cleared of snow to its full width. The acft's left wheel touched the snow pulling the acft off the rwy and the acft flipped over. - [NTSB DEN86LA027](https://openairdocs.org/ntsb/DEN86LA027.md): Piper PA-38-112 · Ft. Collins, CO · Accident · No injuries · Limited investigation · Final report · Nov 16, 1985 · N2601G · Substantial damage > The acft collided with large chunks of snow on the rwy during takeoff roll. The plt stated that during the roll about mid-way down the rwy he spotted the snow and decided to abort but was unable to avoid the snow. The left gear contacted the snow and the acft… - [NTSB DEN84LA056](https://openairdocs.org/ntsb/DEN84LA056.md): Cessna 180 · Florissant, CO · Accident · No injuries · Limited investigation · Final report · Dec 30, 1983 · N3389D · Substantial damage > The acft collided with a snowbank during landing. The rwy had only been plowed to a width of about 16 ft according to the plt. This was a privately owned strip and the plt/owner said he instructed his maintenance man/ranch mgr to plow therwy to minimum width.… - [NTSB DEN83LA085](https://openairdocs.org/ntsb/DEN83LA085.md): Cessna R172K · Aurora, CO · Accident · No injuries · Limited investigation · Final report · Mar 27, 1983 · N736CU · Substantial damage > The aircraft collided with a snowbank during landing. The pilot stated that he had contacted flt service and asked aboutthe runway conditions. Nothing was reported and no NOTAMS were posted. Upon arrival the pilot tried to contact UNICOM atcolumbine. Someone… - [NTSB DEN82DA188](https://openairdocs.org/ntsb/DEN82DA188.md): Piper PA-24-180 · Pueblo, CO · Accident · Serious injuries · Final report · Sep 6, 1982 · N7291P · Substantial damage > The aircraft landed at rueblo, CO for fuel on a return flight to Texas. After landing, the pilot asked a female attendant if there were any liquor stores open. The pilot returned to the airport about 1/2 hour later and observed the pilot carrying a brown… - [NTSB DEN82DA137](https://openairdocs.org/ntsb/DEN82DA137.md): Piper PA-28R · Near Almosa, CO · Accident · No injuries · Final report · Jul 17, 1982 · N5114S · Substantial damage > The pilot stated that during flight, his oil temperature began to rise and he elected to land on an abandoned air strip. During the landing, the aircraft encountered rough, uneven terrain, and subsequently, the landing gear and right wing were damaged. An… ## 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 320) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=320&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.