# NTSB investigations: Pratt & Whitney JT8D-9 series: In flight encounter with weather

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 FTW97LA215](https://openairdocs.org/ntsb/FTW97LA215.md): Boeing 737-291A · Albuquerque, NM · Accident · Serious injuries · Limited investigation · Final report · Jun 11, 1997 · N980UA · No damage
  > the sudden encounter with clear air turbulence.
- [NTSB CHI97LA060](https://openairdocs.org/ntsb/CHI97LA060.md): McDonnell Douglas DC-9-51 · Cape Girardeau, MO · Accident · Serious injuries · Limited investigation · Final report · Jan 28, 1997 · N414EA · No damage
  > clear air turbulence encountered by the flight.
- [NTSB FTW94LA229](https://openairdocs.org/ntsb/FTW94LA229.md): Boeing 737-2H4 · South Bend, IN · Accident · Serious injuries · Limited investigation · Final report · Jul 7, 1994 · N60SW · No damage
  > The encounter with unforcasted and unreported turbulence.
- [NTSB FTW92LA142](https://openairdocs.org/ntsb/FTW92LA142.md): Boeing 737-200 · Palacios, TX · Accident · Serious injuries · Limited investigation · Final report · May 15, 1992 · N67SW · No damage
  > The flight's unexpected encounter with moderate turbulence.
- [NTSB MIA90LA155](https://openairdocs.org/ntsb/MIA90LA155.md): Boeing 727-223 · Fort Myers, FL · Accident · Serious injuries · Limited investigation · Final report · Jul 18, 1990 · N6834 · No damage
  > Unforecasted encounter with weather. The airplane encountered severe turblence during enroute descent, resulting in one flight attendant sustaining serious injury, and one passenger sustaining minor injury.
- [NTSB CHI90IA166](https://openairdocs.org/ntsb/CHI90IA166.md): Mcdonnell Douglas DC-9-32 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jun 29, 1990 · N948ML · No damage
  > The pilot-in-command's inadequate weather evaluation. Factors in the incident were the weather and artcc's failure to issue a weather advisory.
- [NTSB DCA86IA017](https://openairdocs.org/ntsb/DCA86IA017.md): Boeing 727-223 · Harlingen, TX · Incident · No injuries · Incident investigation · Final report · Feb 8, 1986 · N871AA · Minor damage
  > While en route, the company dispatcher notified American flt 844 (via acars) that Harlingen (hrl) had unforecast fog & was 300' obscd with 1/2 mi vis. At 2335, as the flt bgn a dscnt fm FL 310, the same ceiling & vis were rprtd. However, as the flt was clrd…

## 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.engine_model_code IN ('52048')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 240))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52048&occurrence=240

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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.