# NTSB investigations: Pratt & Whitney JT8D-9 series, 1990

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 DEN90IA189](https://openairdocs.org/ntsb/DEN90IA189.md): Boeing 737-222 · Denver, CO · Incident · Minor injuries · Incident investigation · Final report · Sep 19, 1990 · N9044U · No damage
  > The failure of the flight crew to follow emergency procedures/directives. Factors were the failure of the aircraft electrical system (relays) and the failure of the company to provide a jetway operator.
- [NTSB SEA90IA161](https://openairdocs.org/ntsb/SEA90IA161.md): Boeing 727-224 · Belgrade, MT · Incident · No injuries · Incident investigation · Final report · Aug 12, 1990 · N69735 · Minor damage
  > The malfunction of the starter control valve.
- [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 DCA90MA017](https://openairdocs.org/ntsb/DCA90MA017.md): Beech A100 · Atlanta, GA · Accident · 1 fatal · Class 1 · Major · Final report · Jan 19, 1990 · N44UE · 2 aircraft · Destroyed
  > (1) Failure of the federal aviation administration to provide air traffic control procedures that adequately take into consideration human performance factors such as those which resulted in the failure of the north local controller to detect the developing…

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52048'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52048&year=1990

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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.