# NTSB investigations: Continental GTSIO-520-C, 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 CEN24FA212](https://openairdocs.org/ntsb/CEN24FA212.md): Beech V35A · Arvada, CO · Accident · 1 fatal · Class 3 · Field · Final report · Jun 7, 2024 · N150WR · Destroyed
  > A total loss of engine power due to oil starvation as a result of loose turbocharger oil line fittings.
- [NTSB CEN21LA341](https://openairdocs.org/ntsb/CEN21LA341.md): Cessna T210F · Peyton, CO · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2021 · N6162R · Substantial damage
  > The pilot’s fuel mismanagement that resulted in a complete loss of engine power during climb and subsequent impact with terrain during a forced landing.
- [NTSB DEN06FA114](https://openairdocs.org/ntsb/DEN06FA114.md): Cirrus Design SR20 · Kremmling, CO · Accident · Serious injuries · Field investigation · Final report · Aug 16, 2006 · N8127J · Destroyed
  > The pilot's failure to properly execute the published missed approach procedure resulting in an impact with mountainous terrain. Contributing factors were the pilot's attempted flight into known adverse weather conditions, failure to obtain the UNICOM…
- [NTSB DEN05FA074](https://openairdocs.org/ntsb/DEN05FA074.md): Cessna T210G · Ouray, CO · Accident · 4 fatal · Field investigation · Final report · May 11, 2005 · N6807R · Destroyed
  > the pilot's inadvertent flight into adverse weather conditions, loss of control, and resulting exceedence of the design stress limits of the aircraft. which led to an in-flight structural failure. Factors in the accident included the pilot's inadequate…
- [NTSB DEN05FA038](https://openairdocs.org/ntsb/DEN05FA038.md): Cessna 421 · Englewood, CO · Accident · 3 fatal · Field investigation · Final report · Dec 17, 2004 · N421FR · Destroyed
  > loss of engine power due to fuel starvation, and the instructor's failure to maintain aircraft control. Contributing factors were a partially blocked fuel line resulting in restricted fuel flow, the instructor's failure to perform critical emergency…
- [NTSB DEN99LA138](https://openairdocs.org/ntsb/DEN99LA138.md): Cessna TU206A · Durango, CO · Accident · No injuries · Limited investigation · Final report · Aug 8, 1999 · N4835F · Substantial damage
  > A worn landing nose gear steering system that diminished the ability to steer the airplane. Factors were improper maintenance by unknown persons, and loose gravel.
- [NTSB FTW98FA319](https://openairdocs.org/ntsb/FTW98FA319.md): Cessna T-310P · Colorado Sprngs, CO · Accident · Minor injuries · Field investigation · Final report · Jul 19, 1998 · N5833M · Destroyed
  > The separation of a portion of the right engine exhaust stack, and the ensuing fuel fire in the right engine nacelle.
- [NTSB DEN91LA136](https://openairdocs.org/ntsb/DEN91LA136.md): Cessna 421B · Pagosa Springs, CO · Accident · No injuries · Limited investigation · Final report · Aug 16, 1991 · N80RS · Substantial damage
  > Inadequate preflight of the aircraft by the pilot in command. A factor was: failure of the pilot in command to properly latch the cargo door.
- [NTSB DEN91LA101](https://openairdocs.org/ntsb/DEN91LA101.md): Cessna 421B · Colorado Spring, CO · Accident · No injuries · Limited investigation · Final report · Jul 17, 1991 · N768RA · Substantial damage
  > A fractured fuel line and an improperly performed annual inspection.
- [NTSB DEN90LA078](https://openairdocs.org/ntsb/DEN90LA078.md): Cessna T210J · Englewood, CO · Accident · Minor injuries · Limited investigation · Final report · Mar 25, 1990 · N2KD · Substantial damage
  > The pilot's loss of directional control during an aborted takeoff.
- [NTSB DEN89LA199](https://openairdocs.org/ntsb/DEN89LA199.md): Cessna T210F · Englewood, CO · Accident · Serious injuries · Limited investigation · Final report · Aug 24, 1989 · N6121R · Substantial damage
  > A failure in the hyrdraulic power unit, which prevented operation of either the normal or emergency gear extension systems. The raised runway lip contributed to aircraft damage and pilot injury.
- [NTSB DEN86FA033](https://openairdocs.org/ntsb/DEN86FA033.md): Cessna 421B · Franktown, CO · Accident · Serious injuries · Field investigation · Final report · Dec 2, 1985 · N249JM · Substantial damage
  > The acft departed nashville, TN, for a flt to aspen, CO. The plts made one refueling stop at chanute, KS. The plts were unable to land at aspen or a nearby alternate arpt (eagle, CO) and elected to return back to the denver area. The plts indicated to an…
- [NTSB DEN84FA004](https://openairdocs.org/ntsb/DEN84FA004.md): Cessna 421C · Center, CO · Accident · No injuries · Field investigation · Final report · Oct 9, 1983 · N770JW · Substantial damage
  > The acft collided with a dirt bank after a left engine overspeed and loss of directional control during takeoff. The plthad already aborted one takeoff due to overboost and a sticking wastegate. The problem seemed corrected after work and lubrication by a…
- [NTSB DEN83LA081](https://openairdocs.org/ntsb/DEN83LA081.md): Cessna 421C · Gunnison, CO · Accident · No injuries · Limited investigation · Final report · Mar 18, 1983 · N67943 · Substantial damage
  > The plt began taking off on rwy 06 with a wind from 190 deg at 8 KTS. He stated that max power & RPM were obtained. He noted that he obtained 39 inches of manifold pressure & 2235 RPM at 100 KTS IAS. Reportedly, the acft rotated properly, but began to vibrate…
- [NTSB DEN78FTE69](https://openairdocs.org/ntsb/DEN78FTE69.md): Cessna TU206A · Crested Butte, CO · Accident · No injuries · Closed · Jun 21, 1978 · N4895F · Substantial damage
- [NTSB DEN74DTE89](https://openairdocs.org/ntsb/DEN74DTE89.md): Cessna 411 · Salida, CO · Accident · No injuries · Closed · Jun 16, 1974 · N4954T · Substantial damage
- [NTSB DEN69A0037](https://openairdocs.org/ntsb/DEN69A0037.md): Dehavilland DH114 · Aspen, CO · Accident · No injuries · Closed · Mar 24, 1969 · N1420Z · 2 aircraft · Minor damage
- [NTSB DEN69D0075](https://openairdocs.org/ntsb/DEN69D0075.md): Cessna 320E · Grand Jnct, CO · Accident · No injuries · Closed · Jul 27, 1968 · N3410Q · Substantial damage
- [NTSB DEN68F0158](https://openairdocs.org/ntsb/DEN68F0158.md): Cessna T-210 · Denver, CO · Accident · No injuries · Closed · Nov 1, 1967 · N6702R · Substantial 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 ('17035'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17035&state=CO

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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.
