# NTSB investigations: Pratt & Whitney PW4000 series

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.

Page 3 of 3 · 111 cases

## Cases, newest first

- [NTSB DCA98WA074](https://openairdocs.org/ntsb/DCA98WA074.md): Boeing 777 · London Heathrow, United Kingdom · Incident · No injuries · Foreign investigation · Jul 29, 1998 · N796UA · Minor damage
- [NTSB DCA98WA043](https://openairdocs.org/ntsb/DCA98WA043.md): Boeing 747 · Narita, Japan · Accident · Serious injuries · Foreign investigation · May 11, 1998 · N179UA · No damage
- [NTSB DCA98RA016](https://openairdocs.org/ntsb/DCA98RA016.md): Boeing 767-322ER · London, United Kingdom · Accident · Serious injuries · Foreign investigation · Jan 9, 1998 · N653UA
- [NTSB DCA98WA005](https://openairdocs.org/ntsb/DCA98WA005.md): McDonnell Douglas MD-11 · Montevideo, Uruguay · Accident · No injuries · Foreign investigation · Oct 24, 1997 · N275WA · Substantial damage
- [NTSB CHI97LA292](https://openairdocs.org/ntsb/CHI97LA292.md): Boeing 747-422 · Grand Forks, ND · Accident · Serious injuries · Limited investigation · Final report · Sep 14, 1997 · N175UA · No damage
  > The flight attendant's seat belt was not secured. A factor was turbulence in the clouds.
- [NTSB ATL97WA079](https://openairdocs.org/ntsb/ATL97WA079.md): Boeing 767-300 · Asuncion, Paraguay · Accident · Serious injuries · Foreign investigation · Jun 4, 1997 · N651UA · No damage
- [NTSB LAX97LA112](https://openairdocs.org/ntsb/LAX97LA112.md): Boeing 767-300 · San Francisco, CA · Accident · Serious injuries · Limited investigation · Final report · Feb 25, 1997 · N661UA · No damage
  > an encounter with unforecasted moderate clear air turbulence, while descending over mountainous terrain.
- [NTSB NYC96IA131](https://openairdocs.org/ntsb/NYC96IA131.md): Boeing 767-332ER · Jamaica, NY · Incident · No injuries · Incident investigation · Final report · Jun 25, 1996 · N185DN · Minor damage
  > the improper installation of the generator feed cable by the manufacturer, which resulted in a severed aileron cable due to arcing between the generator feed cable and aileron cable.
- [NTSB LAX96LA013](https://openairdocs.org/ntsb/LAX96LA013.md): Boeing 747-422 · Pacific Ocean (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · Oct 17, 1995 · N191UA · No damage
  > an inadvertent encounter with unreported and unforecasted severe turbulence. A factor in the accident was the passengers' non-use of seat belts during cruise flight.
- [NTSB LAX94LA141](https://openairdocs.org/ntsb/LAX94LA141.md): Boeing 747-400 · Pacific Ocean (Pacific Ocean) · Accident · Serious injuries · Limited investigation · Final report · Feb 12, 1994 · N186UA · No damage
  > the failure of the chief steward to verify that all flight attendants had been informed, and were complying with the captain's instructions to remain seated with their seatbelts fastened.
- [NTSB LAX90IA305](https://openairdocs.org/ntsb/LAX90IA305.md): Boeing 747-422 · Los Angeles, CA · Incident · Minor injuries · Incident investigation · Final report · Aug 27, 1990 · N174UA · Minor damage
  > The failure of the manufacturer to ensure that the landing gear selector valves and their associated drum link assemblies were properly installed prior to delivery of the aircraft. A factor in the accident was the lack of information available to the crew…

## 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 ('52119'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52119&page=3

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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.