# NTSB investigations: Bollinger Robert L BD-4

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 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 CHI01LA022](https://openairdocs.org/ntsb/CHI01LA022.md): Bollinger BD-4 · Hedrick, IA · Accident · Minor injuries · Limited investigation · Final report · Oct 21, 2000 · N108BC · Substantial damage
  > the pilot not obtaining/maintaining clearance from the fence. A factors was fence.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('05626GD'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=05626GD

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