# Fatal NTSB investigations, AL: Aircraft maintenance event

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 ERA23FA382](https://openairdocs.org/ntsb/ERA23FA382.md): Smith William S Smith Cozy Mark IV · Cullman, AL · Accident · 1 fatal · Class 3 · Field · Final report · Sep 29, 2023 · N95SF · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall and subsequent loss of control. Contributing to the accident was the pilot/owner’s improper installation of engine…
- [NTSB ERA20LA212](https://openairdocs.org/ntsb/ERA20LA212.md): Piper PA32RT · Selma, AL · Accident · 2 fatal · Class 3 · Limited · Final report · Jun 10, 2020 · N543GS · Destroyed
  > The mechanic’s failure to clean the oil suction screen during the most recent maintenance, which resulted in oil starvation and subsequent total loss of engine power.
- [NTSB ERA18FA146](https://openairdocs.org/ntsb/ERA18FA146.md): Beech 35A33 · Jacksonville, AL · Accident · 1 fatal · Field investigation · Final report · May 13, 2018 · N486T · Destroyed
  > The pilot/mechanic's inadequate inspection of the exhaust system, including the left muffler and heat exchanger, which precluded his detection of preexisting cracks and led to a missed opportunity to replace the components. The inadequate inspection allowed…

## 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" = 'AL' AND c."eventCountry" = 'USA'
  AND c."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '040' 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/040/sequence?fatal=1&state=AL

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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.