# NTSB investigations, OK: Preflight or dispatch 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 GAA17CA185](https://openairdocs.org/ntsb/GAA17CA185.md): Pipistrel Doo Ajdovscina Virus · Okmulgee, OK · Accident · No injuries · Data collection · Final report · Mar 11, 2017 · N345M · Substantial damage
  > The pilot’s failure to review the Federal Aviation Administration chart supplement before landing, which resulted in his landing on a closed runway and collision with a fence. Contributing to the accident was the airport’s failure to adequately mark the…
- [NTSB CEN13FA121](https://openairdocs.org/ntsb/CEN13FA121.md): Eurocopter EC130 B4 · Seminole, OK · Accident · Serious injuries · Field investigation · Final report · Jan 2, 2013 · N334AM · Substantial damage
  > The loss of engine power due to ice ingestion. Contributing to the accident was maintenance personnel’s delayed decision to install the helicopter's engine inlet cover until after the engine had been exposed to moisture and freezing temperatures and their…
- [NTSB CEN09FA562](https://openairdocs.org/ntsb/CEN09FA562.md): Piper PA-32R-300 · Tulsa, OK · Accident · 5 fatal · Field investigation · Final report · Sep 5, 2009 · N1228H · Destroyed
  > The non-instrument-rated pilot’s decision to attempt flight in instrument meteorological conditions, which resulted in spatial disorientation and an in-flight collision with a radio tower guy wire.

## 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" = 'OK' 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" = '030' 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/030/sequence?state=OK

---
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.