# NTSB investigations: Pratt & Whitney Canada JT15D-4 series, 1999

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 NYC99IA079](https://openairdocs.org/ntsb/NYC99IA079.md): Cessna 550 · State College, PA · Incident · No injuries · Incident investigation · Final report · Mar 25, 1999 · N37MH · Minor damage
  > Improper assembly of the left main landing gear (LMLG) actuator by the airplane manufacturer, which resulted in an incorrect 'locked' indication on the LMLG switch, and the subsequent collapse of the LMLG during taxi.
- [NTSB CHI99LA093](https://openairdocs.org/ntsb/CHI99LA093.md): Mitsubishi 300 · Columbus, NE · Accident · No injuries · Limited investigation · Final report · Feb 18, 1999 · N110DS · Substantial damage
  > the pilot-in-command failed to attain the proper touchdown point during the landing. Factors associated with the accident were the rough, snow covered terrain encountered off the end of the runway, and the low ceiling at the time of the landing.

## 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") = 1999
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52112'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52112&year=1999

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