# NTSB investigations: Pratt & Whitney JT9D-3A, 1993

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 CHI93IA248](https://openairdocs.org/ntsb/CHI93IA248.md): Mcdonnell Douglas DC-10-40 · Detroit, MI · Incident · No injuries · Incident investigation · Final report · Jul 10, 1993 · N158US · No damage
  > the failure of a navigation system (#1 INS) for reason or reasons undetermined.
- [NTSB DCA93MA033](https://openairdocs.org/ntsb/DCA93MA033.md): Boeing 747-121 · Anchorage, AK · Accident · No injuries · Class 1 · Major · Final report · Mar 31, 1993 · N473EV · Substantial damage
  > The lateral separation of the no. 2 engine pylon due to an encounter with severe or possibly extreme turbulence that resulted in dynamic multi-axis lateral loadings that exceeded the ultimate lateral load-carrying capability of the pylon, which was already…

## 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") = 1993
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52050'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52050&year=1993

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