# NTSB investigations: Diamond Aircraft Ind DA20-C1: Aerodynamic stall/spin

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 GAA19CA527](https://openairdocs.org/ntsb/GAA19CA527.md): Diamond DA20 · Convington, TN · Accident · No injuries · Data collection · Final report · Aug 31, 2019 · N98BZ · Substantial damage
  > The student pilot's improper pitch attitude during the takeoff climb, and the flight instructor's delayed remedial action which resulted in an aerodynamic stall and ground impact.
- [NTSB GAA18CA358](https://openairdocs.org/ntsb/GAA18CA358.md): Diamond Aircraft Ind DA 20 · Spanish Fork, UT · Accident · No injuries · Data collection · Final report · Jun 16, 2018 · N992CT · Substantial damage
  > The pilot receiving instruction’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.
- [NTSB GAA17CA055](https://openairdocs.org/ntsb/GAA17CA055.md): Diamond Aircraft Ind DA 20 · Bristow, VA · Accident · Minor injuries · Data collection · Final report · Oct 31, 2016 · N781MA · Substantial damage
  > The pilot’s loss of directional control during a landing attempt at night, which resulted in a delayed go-around procedure and subsequent impact with terrain. Contributing to the accident was the pilot’s lack of recent flight experience.
- [NTSB ERA11LA306](https://openairdocs.org/ntsb/ERA11LA306.md): Diamond Aircraft Ind DA 20-C1 · Wurtsboro, NY · Accident · Serious injuries · Limited investigation · Final report · May 20, 2011 · N877CT · Substantial damage
  > The pilot’s performance of aerobatic maneuvers at low altitude and his failure to maintain airspeed, which resulted in an aerodynamic stall.
- [NTSB WPR11FA050](https://openairdocs.org/ntsb/WPR11FA050.md): Diamond Aircraft Ind DA20-C1 · Payson, UT · Accident · 2 fatal · Field investigation · Final report · Nov 17, 2010 · N978CT · Substantial damage
  > The pilots' failure to maintain adequate airspeed during a slow flight maneuver that resulted in a stall and spin, and the flight instructor’s delayed or improper remedial actions to recover from the spin. Contributing to the accident was the flight school’s…
- [NTSB CEN10CA373](https://openairdocs.org/ntsb/CEN10CA373.md): Diamond Aircraft Ind DA 20-C1 · Bloomington, IL · Accident · No injuries · Data collection · Final report · Jun 30, 2010 · N802CT · Substantial damage
  > The pilot's failure to maintain adequate airspeed during landing, which resulted in a stall.
- [NTSB WPR09FA062](https://openairdocs.org/ntsb/WPR09FA062.md): Diamond DA 20-C1 · Alamo Lake State Park, AZ · Accident · 1 fatal · Field investigation · Final report · Dec 20, 2008 · N4196M · Substantial damage
  > The pilot's failure to maintain control during the performance of a maneuver and his failure to recover from the subsequent aerodynamic stall and spin.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2990001')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '241' 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/241/sequence?model=2990001

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