# NTSB investigations, 1990: Vortex turbulence encountered

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 SEA90LA136](https://openairdocs.org/ntsb/SEA90LA136.md): North American P-51 · Seattle, WA · Accident · No injuries · Limited investigation · Final report · Jul 14, 1990 · NX51VC · Substantial damage
  > An encounter with vortex turbulence while on final approach to landing.
- [NTSB LAX90LA205](https://openairdocs.org/ntsb/LAX90LA205.md): Cessna 152 II · Rialto, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 2, 1990 · N49796 · Substantial damage
  > Pilot's inadequate visual outlook which resulted in an inflight encounter with wake turbulence produced by a hovering helicopter.
- [NTSB ANC90FA079](https://openairdocs.org/ntsb/ANC90FA079.md): Cessna 195 · Anchorage, AK · Accident · No injuries · Field investigation · Final report · May 31, 1990 · N195ES · Substantial damage
  > The pilot's failure to follow wake turbulence avoidance procedures.

## 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 year(c."eventDate") = 1990
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 410)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=410&year=1990

---
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.