# NTSB investigations: Lycoming R680: 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 WPR24FA298](https://openairdocs.org/ntsb/WPR24FA298.md): Boeing A75L3 · Yacolt, WA · Accident · 1 fatal · Class 3 · Field · Final report · Sep 6, 2024 · N53466 · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at a low altitude in mountainous terrain in moderately high density altitude conditions, resulting in an aerodynamic stall and subsequent impact with terrain.
- [NTSB ERA15LA365](https://openairdocs.org/ntsb/ERA15LA365.md): Clark 1000 · Warehouse Point, CT · Accident · Minor injuries · Limited investigation · Final report · Sep 19, 2015 · N9018R · Substantial damage
  > The pilot’s failure to maintain adequate airspeed during the initial climb after takeoff, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's decision to…
- [NTSB ERA13CA324](https://openairdocs.org/ntsb/ERA13CA324.md): Boeing B75N1 · Woodruff, SC · Accident · Minor injuries · Data collection · Final report · Jul 17, 2013 · N5815V · Substantial damage
  > The pilot’s decision to initiate a stall maneuver at a low altitude, which resulted in an uncontrolled descent and inadvertent collision with trees and 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41540')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '241'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/241/cases?engine=41540

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