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

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 DCA85AA015](https://openairdocs.org/ntsb/DCA85AA015.md): Boeing 747 SP-09 · San Francisco, CA · Accident · Serious injuries · Final report · Feb 19, 1985 · N4522V · Substantial damage
  > While abv a cloud layer (top at FL 370) nr the jet stream, autoplt was engaged & was in the performance mngmnt sys (pms)mode. The pms provided pitch guidance to hold FL 410, roll guidance to ailerons & spoilers for roll ctl & autothrottle to maint.85 mach…
- [NTSB DCA72AZ002](https://openairdocs.org/ntsb/DCA72AZ002.md): Boeing 747 · San Frncsco, CA · Accident · Serious injuries · Closed · Jul 30, 1971 · N747PA · Substantial damage

## 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" = 'CA' AND c."eventCountry" = 'USA'
  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&state=CA

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