# Fatal NTSB investigations: Lycoming O-360-A1P

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 WPR19FA146](https://openairdocs.org/ntsb/WPR19FA146.md): Aviat A1 · Santa Ynez, CA · Accident · 1 fatal · Class 3 · Field · Final report · May 15, 2019 · N236AM · Destroyed
  > The pilot’s failure to maintain clearance from mountainous terrain during cruise flight in low visibility and mountainous obscuration conditions.
- [NTSB CEN17FA028](https://openairdocs.org/ntsb/CEN17FA028.md): Aviat A-1C-180 · Clarksville, TX · Accident · 1 fatal · Field investigation · Final report · Oct 28, 2016 · N377MA · Destroyed
  > The pilot's failure to maintain sufficient airspeed during the landing approach, which resulted in exceedance of the airplane's critical angle of attack and an aerodynamic stall.
- [NTSB WPR12FA280](https://openairdocs.org/ntsb/WPR12FA280.md): Aviat A-1C-180 · Kooskia, ID · Accident · 1 fatal · Field investigation · Final report · Jun 28, 2012 · N63WY · Substantial damage
  > The pilot's decision to attempt a takeoff with a gusty tailwind, which resulted in his loss of airplane control during the initial climb and an aerodynamic stall/spin.
- [NTSB WPR11FA188](https://openairdocs.org/ntsb/WPR11FA188.md): Aviat A-1C-180 · Laramie, WY · Accident · 1 fatal · Field investigation · Final report · Apr 6, 2011 · N28WY · Substantial damage
  > The pilot’s failure to maintain airplane control and to recover from an aerodynamic stall, which resulted in a 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('42259'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=42259&fatal=1

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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.