# NTSB investigations: Lycoming IO-720 series, IA

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 CHI07CA088](https://openairdocs.org/ntsb/CHI07CA088.md): Piper PA-24-400 · Des Moines, IA · Accident · No injuries · Data collection · Final report · Mar 13, 2007 · N400VL · Substantial damage
  > the nose landing gear becoming jammed in a partially extended position during flight as a result of damage to the nose landing gear by ground personnel.
- [NTSB CHI92DCD03](https://openairdocs.org/ntsb/CHI92DCD03.md): Piper PA-36-375 · Deloit, IA · Accident · Minor injuries · Final report · Apr 29, 1992 · N3986E · Substantial damage
  > Inadequate visual lookout by the pilot in command while performing aerial application maneuvers. A factor in the accident is the pilot's diverted attention.
- [NTSB MKC84LA176](https://openairdocs.org/ntsb/MKC84LA176.md): Piper PA-36-375 · Storm Lake, IA · Accident · Minor injuries · Limited investigation · Final report · Jun 19, 1984 · N3953E · Substantial damage
  > While on the 2nd swath run, the plt maneuvered the acft to cross under power lines bordering the edge of the corn field. He said he misjudged the distance to clear the power lines. The vertical stabilizer & rudder struck the lines & were torn from the acft.…

## 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" = 'IA' 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 ('41546'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41546&state=IA

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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.