# NTSB investigations, 2021: Windshear or thunderstorm

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 CEN22LA003](https://openairdocs.org/ntsb/CEN22LA003.md): Boeing PT-17 · Winnie, TX · Accident · Minor injuries · Class 4 · Limited · Final report · Oct 2, 2021 · N4106Y · Substantial damage
  > The pilot’s decision to takeoff from a road with obstacles in his flight path and his failure to maintain control of the airplane when encountering changing winds from approaching thunderstorms which resulted in the airplane impacting signal light cables.
- [NTSB CEN21LA471](https://openairdocs.org/ntsb/CEN21LA471.md): Just Highlander · West Cobb, AR · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 29, 2021 · N419SD · Substantial damage
  > The airplane’s encounter with gusting wind conditions and low-level wind shear on final approach, which resulted in a loss of control, an aerodynamic stall, and a subsequent hard landing.
- [NTSB GAA21WA207](https://openairdocs.org/ntsb/GAA21WA207.md): Cessna P210N · Marbach, Germany · Accident · Class 5 · Foreign · Aug 15, 2021 · N450SC · Substantial damage
- [NTSB CEN21LA291](https://openairdocs.org/ntsb/CEN21LA291.md): Piper PA-28-180 · Loveland, CO · Accident · No injuries · Class 4 · Limited · Final report · Jun 25, 2021 · N9277J · Substantial damage
  > The flight instructor’s failure to maintain aircraft control during the landing flare and subsequent attempted go-around with a strong quartering crosswind.
- [NTSB WPR21FA211](https://openairdocs.org/ntsb/WPR21FA211.md): Textron 172S · Eden, UT · Accident · 2 fatal · Class 3 · Field · Final report · May 29, 2021 · N1727T · Destroyed
  > The flight instructor’s improper aeronautical decision-making, which led to an encounter with a downdraft at a low altitude in mountainous terrain and resulted in the instructor’s loss of airplane control and an impact with terrain.
- [NTSB ANC21LA043](https://openairdocs.org/ntsb/ANC21LA043.md): Cessna 182K · Cordova, AK · Accident · Minor injuries · Class 3 · Limited · Final report · May 29, 2021 · N2761Q · Substantial damage
  > An encounter with mountain wave turbulence and windshear that exceeded the climb capability of the airplane and resulted in impact with terrain.
- [NTSB ANC21LA044](https://openairdocs.org/ntsb/ANC21LA044.md): Piper PA-18-150 · Perryville, AK · Accident · No injuries · Class 4 · Limited · Final report · May 28, 2021 · N4323Z · Substantial damage
  > The airplane’s encounter with windshear on takeoff, which resulted in a loss of control and impact with the ground.
- [NTSB CEN21LA185](https://openairdocs.org/ntsb/CEN21LA185.md): Piper PA-28-181 · Schaumburg, IL · Accident · No injuries · Class 4 · Limited · Final report · Apr 7, 2021 · N21175 · Substantial damage
  > The pilot’s failure to maintain directional control during the rejected takeoff with a left quartering crosswind that shifted to a tailwind.
- [NTSB WPR21LA139](https://openairdocs.org/ntsb/WPR21LA139.md): Beech B19 · Twin Falls, ID · Accident · No injuries · Class 4 · Limited · Final report · Mar 18, 2021 · N1956W · Substantial damage
  > The pilot’s failure to maintain airplane control during initial climb with a crosswind when the airspeed decreased, the airplane exceeded its critical angle of attack and aerodynamical stalled at too low an altitude for the pilot to recover before the…
- [NTSB WPR21LA111](https://openairdocs.org/ntsb/WPR21LA111.md): Piper PA46R-350T · Tehachapi, CA · Accident · 1 fatal · Class 3 · Limited · Final report · Feb 14, 2021 · N40TS · Destroyed
  > The pilot’s encounter with mountain wave activity with severe turbulence, which resulted in a loss of airplane control. Contributing to the accident was the pilot’s failure to obtain a preflight weather briefing.

## 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 year(c."eventDate") = 2021
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '390' 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/390/sequence?year=2021

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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.