# NTSB investigations, IA: Part(s) separation from AC

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 CEN21LA339](https://openairdocs.org/ntsb/CEN21LA339.md): Robinson Helicopter R44 II · West Liberty, IA · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 20, 2021 · N983HA · Substantial damage
  > The pilot’s failure to see and avoid a wire while maneuvering at low altitude during an aerial application flight, resulting in a collision with the wire.
- [NTSB CEN20LA294](https://openairdocs.org/ntsb/CEN20LA294.md): Rockwell S2R · Harlan, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 20, 2020 · N1662S · Substantial damage
  > The fatigue fracture of the upper rudder hinge that resulted in a partial separation of the rudder from the airplane during a spray pass.
- [NTSB CEN19LA322](https://openairdocs.org/ntsb/CEN19LA322.md): Cessna 195A · Pocahontas, IA · Accident · No injuries · Class 3 · Limited · Final report · Sep 6, 2019 · N9895A · Substantial damage
  > Overload failure of the left main landing gear during landing, which resulted in a loss of directional control.
- [NTSB CEN14LA305](https://openairdocs.org/ntsb/CEN14LA305.md): Bollinger Robert L BD 4 · Fairfield, IA · Accident · 1 fatal · Limited investigation · Final report · Jun 22, 2014 · N108BC · Destroyed
  > The pilot’s loss of airplane control due to the in-flight separation of the propeller blades for reasons that could not be determined based on the available evidence.
- [NTSB CEN11LA192](https://openairdocs.org/ntsb/CEN11LA192.md): Beech E-90 · Des Moines, IA · Accident · No injuries · Limited investigation · Final report · Feb 15, 2011 · N51DN · Substantial damage
  > The improper installation of the right aileron by maintenance personnel.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '338' 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/338/sequence?state=IA

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