# NTSB investigations: Lycoming 0-540 series, AL: Airframe/component/system failure/malfunction

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 ATL91LA178](https://openairdocs.org/ntsb/ATL91LA178.md): Piper PA-25-235 · Brewton, AL · Accident · Serious injuries · Limited investigation · Final report · Sep 21, 1991 · N7509Z · Destroyed
  > The inflight separation of the left wing resulting from corrosion of the wing front spar fitting assembly. A factor was inadequate maintenance procedures.
- [NTSB ATL89DKJ06](https://openairdocs.org/ntsb/ATL89DKJ06.md): Piper PA-25-235 · Goodway, AL · Accident · Serious injuries · Final report · Jul 8, 1989 · N6941Z · Destroyed
  > The in-flight separation of the left wing which failed because of a corrosion induced fatigue fracture.
- [NTSB ATL83LA382](https://openairdocs.org/ntsb/ATL83LA382.md): Aero Commander A-9 · Andalusia, AL · Accident · Minor injuries · Limited investigation · Final report · Sep 26, 1983 · N8031V · Substantial damage
  > After spraying 2 fields, the plt was en route to spray a 3rd field when a severe vibration of the acft was encountered. He elected to land in the 1st available field & dumped his chemical load. During the landing, the acft hit a terrace & nosed over. The plt…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41532&occurrence=130&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.