# NTSB investigations: Lycoming IO-360-A1B6D, 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. ## Latest cases - [NTSB DEN01LA119](https://openairdocs.org/ntsb/DEN01LA119.md): Cessna 177RG · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Jul 1, 2001 · N2129Q · Substantial damage > failure of the nose landing gear hydraulic UP hose, which resulted in a wheels-up landing.. - [NTSB FTW96LA393](https://openairdocs.org/ntsb/FTW96LA393.md): Cessna 177RG · Boulder, CO · Accident · No injuries · Limited investigation · Final report · Sep 21, 1996 · N7568V · Substantial damage > Failure of the flight instructor to maintain airspeed above stall speed during initial climb and loss of control on the ground after aborting the takeoff. Factors were inadequate preflight planning and preparation, inaccurate weather evaluation, and high… - [NTSB FTW96LA384](https://openairdocs.org/ntsb/FTW96LA384.md): Cessna 177RG · Colorado Sprngs, CO · Accident · No injuries · Limited investigation · Final report · Sep 11, 1996 · N2797V · Substantial damage > The improper installation of the propeller governor by company maintenance personnel, resulting in the total loss of oil and engine seizure. Factors were the pilot's misjudgment of altitude and airspeed, causing him to make a forced landing on unsuitable… - [NTSB FTW95FA111](https://openairdocs.org/ntsb/FTW95FA111.md): Cessna 177RG · Larkspur, CO · Accident · 1 fatal · Field investigation · Final report · Feb 9, 1995 · N33MR · Destroyed > The pilot's decision to continue VFR flight into instrument meteorological conditions after being advised that VFR flight was not recommended. The weather and dark night were factors in the accident. - [NTSB FTW94LA088](https://openairdocs.org/ntsb/FTW94LA088.md): Cessna 177RG · Longmont, CO · Accident · Minor injuries · Limited investigation · Final report · Mar 1, 1994 · N2181Q · Substantial damage > An inadvertent stall due to improper preflight and the pilot's failure to adequately remove ice from the aircraft. A factor was airframe icing. - [NTSB FTW94FA059](https://openairdocs.org/ntsb/FTW94FA059.md): Cessna 177RG · La Veta, CO · Accident · Serious injuries · Field investigation · Final report · Jan 1, 1994 · N53049 · Destroyed > The pilot's improper inflight decision to enter a mountain pass at an inadequate altitude, causing the aircraft's climb performance to be exceeded. Factors were turbulence and downdrafts. - [NTSB DEN92LA059](https://openairdocs.org/ntsb/DEN92LA059.md): Cessna 177RG · Gunnison, CO · Accident · No injuries · Limited investigation · Final report · Jun 14, 1992 · N52658 · Substantial damage > The pilot's failure to maintain directional control. Factor(s) included: fuel exhaustion and the misjudging of fuel consumption calculations. - [NTSB DEN92LA037](https://openairdocs.org/ntsb/DEN92LA037.md): Cessna 177RG · Durango, CO · Accident · No injuries · Limited investigation · Final report · Feb 23, 1992 · N2550V · Substantial damage > A total loss of power due to a mechanical failure of the engine. Factors were: rough and uneven snow covered terrain. - [NTSB DEN91LA052](https://openairdocs.org/ntsb/DEN91LA052.md): Cessna 177RG · Colorado Spring, CO · Accident · No injuries · Limited investigation · Final report · Mar 18, 1991 · N1950Q · Substantial damage > The pilot's failure to maintain directional control of the aircraft. The gusty/quartering crosswind was a related factor. - [NTSB DEN89LA183](https://openairdocs.org/ntsb/DEN89LA183.md): Cessna 177RG · Brighton, CO · Accident · No injuries · Limited investigation · Final report · Aug 4, 1989 · N8203G · Substantial damage > Failure of the landing gear down lock, which allowed the landing gear to collapse during the landing. - [NTSB DEN88LA190](https://openairdocs.org/ntsb/DEN88LA190.md): Cessna 177RG · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Aug 18, 1988 · N53049 · Substantial damage > The commercial plt was practicing short field landings from the right seat on a 7,498 x 100 ft asphalt rwy. The plt said he encountered a thermal at 10 ft AGL and stalled the airplane. He reported that the acft hit harder than he expected and bounced twice.… - [NTSB DEN87LA001](https://openairdocs.org/ntsb/DEN87LA001.md): Cessna 177RG · Glenwood Spring, CO · Accident · Minor injuries · Limited investigation · Final report · Oct 6, 1986 · N33215 · Destroyed > While on takeoff the acft became airborne, settled back onto the rwy, ran off the end of the rwy into a 150 foot deep river gorge, and impacted in the river. - [NTSB DEN84LA026](https://openairdocs.org/ntsb/DEN84LA026.md): Cessna 177RG · Durango, CO · Accident · No injuries · Limited investigation · Final report · Nov 17, 1983 · N52050 · Substantial damage > The acft ran off the right side of the rwy and collided with rwy lights during landing. The plt said he landed on the right side because the left side was being seal coated. Proper alignment was not maintained and the acft's right landing gear dropped off the… - [NTSB DEN82DA035](https://openairdocs.org/ntsb/DEN82DA035.md): Cessna 177RG · 7 Miles N. Of S, CO · Accident · No injuries · Final report · Feb 18, 1982 · N33NF · Substantial damage > In order to slow the aircraft down during flight the pilot lowered 15 degrees of flaps. As the flaps were transitioning down the pilot stated he heard a "pop sound" which was not normal. He then decided to make a precautionary landing on a dirt road. During… - [NTSB DEN81FTE08](https://openairdocs.org/ntsb/DEN81FTE08.md): Cessna 177RG · Boulder, CO · Accident · No injuries · Closed · Dec 5, 1980 · N2702V · Substantial damage - [NTSB DEN76ID013](https://openairdocs.org/ntsb/DEN76ID013.md): Cessna 177 · Loveland, CO · Incident · 1 fatal · Closed · Aug 29, 1975 · N2181Q · Minor damage ## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41593')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41593&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.