# NTSB investigations: Mcdonnell Douglas Helicopter 369E, 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 LAX91TL#02](https://openairdocs.org/ntsb/LAX91TL%2302.md): McDonnell Douglas 369E · Llano, CA · Accident · Minor injuries · Class 3 · Final report · Nov 10, 1990 · N234RF · Substantial damage
- [NTSB LAX91TL#01](https://openairdocs.org/ntsb/LAX91TL%2301.md): McDonnell Douglas 369E · Los Alamitos, CA · Accident · No injuries · Class 3 · Final report · Nov 6, 1990 · N241JH · Substantial damage
- [NTSB LAX90LA171](https://openairdocs.org/ntsb/LAX90LA171.md): Hughes 369E · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · May 11, 1990 · N5217N · Substantial damage
  > Failure by company maintenance to perform a mandatory compressor section inspection that resulted in the undetected erosion of the compressor vanes and engine failure. Contributing to the accident was the failure of the pilot to maintain adequate main rotor…

## 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.aircraft_model_code IN ('3027369'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3027369&year=1990

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