# NTSB investigations: Lycoming IO-540-C4B5, TX

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 CEN21LA096](https://openairdocs.org/ntsb/CEN21LA096.md): Express CT · Grand Prairie, TX · Accident · 2 fatal · Class 3 · Limited · Final report · Dec 21, 2020 · N772BM · Destroyed
  > The pilot’s loss of airplane control during the departure turn, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB CEN20LA419](https://openairdocs.org/ntsb/CEN20LA419.md): Cessna 172S · San Marcos, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 25, 2020 · N108VK · 2 aircraft · Substantial damage
  > The F1 pilot’s failure to see and avoid the lower altitude Cessna while on final approach for landing. Contributing to the accident were the restrictions to pilot visibility inherent to low- and high-wing airplanes, and both pilots’ failure to recognize the…

## 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" = 'TX' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41651'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41651&state=TX

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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.