# NTSB investigations, CO: Abrupt maneuver

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 DEN05LA093](https://openairdocs.org/ntsb/DEN05LA093.md): Cessna 172N · Hudson, CO · Accident · No injuries · Limited investigation · Final report · Jun 19, 2005 · N733RL · Substantial damage
  > The flight instructor's improper use raising of the flaps. Contributing factors were the student pilot's misunderstanding of the instructor's intentions, the instructor's inadequate supervision of the student pilot, the density altitude, and the soft terrain.
- [NTSB DEN03LA154](https://openairdocs.org/ntsb/DEN03LA154.md): Bellanca 7ECA · Byers, CO · Accident · No injuries · Limited investigation · Final report · Sep 20, 2003 · N41698 · Substantial damage
  > The pilot not maintaining adequate clearance from the ground and his improper in-flight planning/decision. Factors contributing to the accident were the tailwind, the low altitude, the tree, the people, the embankment, and the ravine.
- [NTSB DEN01FA044](https://openairdocs.org/ntsb/DEN01FA044.md): Aero Vodochody Aero. Works L-39CT · Watkins, CO · Accident · 2 fatal · Field investigation · Final report · Jan 24, 2001 · N602MC · Destroyed
  > The pilot's failure to maintain aircraft control, and the subsequent inadvertent stall/mush. Factors were the pilot's diverted attention due to the failure of the rear canopy's acrylic transparency and the loss of communication with his back seat passenger,…
- [NTSB FTW97FA207](https://openairdocs.org/ntsb/FTW97FA207.md): Canadair F-86E MK.6 · Broomfield, CO · Accident · 1 fatal · Field investigation · Final report · Jun 1, 1997 · N86EX · Destroyed
  > Inadequate planning and decision making by the pilot in starting the aerobatic maneuver at an insufficient altitude to successfully complete the maneuver.
- [NTSB DEN91LA122](https://openairdocs.org/ntsb/DEN91LA122.md): Stinson 108 · Steamboat Sprin, CO · Accident · No injuries · Limited investigation · Final report · Sep 2, 1991 · N40159 · Substantial damage
  > A swerve initiated by the pilot in command to avoid a collision with a deer during takeoff roll.
- [NTSB DEN86FA252](https://openairdocs.org/ntsb/DEN86FA252.md): Cessna 172M · Bennett, CO · Accident · 1 fatal · Field investigation · Final report · Sep 16, 1986 · N1691V · Destroyed
  > The plt, a bail bondsman, flew to goodland, KS, reportedly in search of an accused felon. On the afternoon of the accident, the plt obtained a wx briefing from the fss and filed a VFR flt plan back to the brighton-van aire airport in Colorado. Wx was cavu.…
- [NTSB DEN83FTE05](https://openairdocs.org/ntsb/DEN83FTE05.md): Schweizer 1-36 · Colo Springs, CO · Accident · No injuries · Final report · Jan 6, 1983 · N36166 · Substantial damage
  > The glider was substantially damaged during a pullup from a dive at altitude. The wing was rippled and beckled and damaged at the attach points. The dihedrial had changed from 6 degrees to 8.5 degrees. There was also unmeasured change in the sweepback. It is…

## 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" = 100)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=100&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.