# 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 CEN25LA403](https://openairdocs.org/ntsb/CEN25LA403.md): Aeronca 11AC · Longmont, CO · Accident · No injuries · Class 4 · Limited · Final report · Sep 29, 2025 · N86326 · Substantial damage
  > The pilot’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and the pilot’s improper landing flare which resulted in a hard landing.
- [NTSB CEN20CA116](https://openairdocs.org/ntsb/CEN20CA116.md): Cub Crafters CC11-160 · Mack, CO · Accident · No injuries · Data collection · Final report · Mar 7, 2020 · N78BK · Substantial damage
  > The pilot's failure to reconnoiter the approach area in preparation for an off-airport landing on a sandbar, which necessitated an evasive maneuver to avoid wires and resulted in an unintentional landing in the river short of the sandbar and a subsequent…
- [NTSB CEN14CA460](https://openairdocs.org/ntsb/CEN14CA460.md): Aviat Husky · Steamboat Springs, CO · Accident · No injuries · Data collection · Final report · Aug 1, 2014 · N776BC · Substantial damage
  > The student rated pilot's inadvertent flight control input resulting in a ground loop and substantial damage to the right wing.
- [NTSB CEN14FA339](https://openairdocs.org/ntsb/CEN14FA339.md): North American/Aero Classics P 51D · Durango, CO · Accident · 2 fatal · Field investigation · Final report · Jul 4, 2014 · N1451D · Substantial damage
  > The pilot's failure to compensate for the high-performance airplane's tendency to enter a torque roll during the initial climb, which resulted in the airplane entering a torque roll and the subsequent loss of control at too low of an altitude to recover.…
- [NTSB CEN11FA304](https://openairdocs.org/ntsb/CEN11FA304.md): Cubcrafters CC11-160 · Parker, CO · Accident · 2 fatal · Field investigation · Final report · Apr 23, 2011 · N143FJ · Substantial damage
  > The pilot’s excessive and unsafe maneuvering during gusty wind conditions, which resulted in an inadvertent stall-spin.
- [NTSB CEN11CA289](https://openairdocs.org/ntsb/CEN11CA289.md): Rans S12 · Fort Collins, CO · Accident · Minor injuries · Data collection · Final report · Apr 9, 2011 · N3581S · Substantial damage
  > The pilot's inadvertent application of full right rudder during landing, which resulted in an aerodynamic stall and impact with terrain.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '270' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/270/sequence?state=CO

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