# Final NTSB investigations: Pratt & Whitney JFTD12A 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.

## Latest cases

- [NTSB WPR23FA302](https://openairdocs.org/ntsb/WPR23FA302.md): Bell 407 · Cabazon, CA · Accident · 3 fatal · Class 3 · Field · Final report · Aug 7, 2023 · N555AS · 2 aircraft · Substantial damage
  > The Skycrane flight crew’s decision to enter the Fire Traffic Area’s 7-nm NOCOM ring at an altitude significantly above their maximum cleared altitude, which resulted in their need for an aggressive descent into congested airspace and subsequent failure to…
- [NTSB WPR09LA184](https://openairdocs.org/ntsb/WPR09LA184.md): Sikorsky CH-54B · Corvallis, OR · Accident · No injuries · Limited investigation · Final report · Apr 7, 2009 · N719HT · Substantial damage
  > The improper assembly of main rotor blade control components by the operator's maintenance personnel, which resulted in the main rotor blade's divergent path and their contact with the tail rotor drive shaft during ground operation following landing.
- [NTSB LAX03TA229](https://openairdocs.org/ntsb/LAX03TA229.md): Sikorsky S-64E · Tucson, AZ · Accident · No injuries · Final report · Jul 8, 2003 · N6979R · Substantial damage
  > the pilot's failure to maintain tail rotor clearance while hovering resulting in a tail rotor blade strike.
- [NTSB SEA99LA038](https://openairdocs.org/ntsb/SEA99LA038.md): Sikorsky S-64E · Shelton, WA · Accident · 1 fatal · Limited investigation · Final report · Mar 2, 1999 · N194AC · No damage
  > The failure of the victim to follow the procedure that required him to make sure that all choker lines had separated from the helicopter's release mechanism prior to entering the landing (collection area).

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52047'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52047&status=final

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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.