# NTSB investigations: Mcdonnell Douglas Helicopter 369E: Hard landing

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 FTW92GA160](https://openairdocs.org/ntsb/FTW92GA160.md): Mcdonnell Douglas 369E · Yukon, OK · Accident · No injuries · Final report · Jun 13, 1992 · N684F · Substantial damage
  > The dual student's failure to maintain adequate main rotor RPM and failure to level the helicopter at touchdown. Factors were the manufacturer's training pilot's inadequate supervision and the dual student performing the maneuver.
- [NTSB LAX87LA157](https://openairdocs.org/ntsb/LAX87LA157.md): McDonnell Douglas 369E · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Mar 19, 1987 · N1601Y · Substantial damage
  > During factory flt training, prior to delivery of the new helicopter to the owner, the CFI said he asked the student to perform a series of emergency procedures which included quick stops from an initial takeoff followed by hovering autorotations. The CFI…

## 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.aircraft_model_code IN ('3027369')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 200))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3027369&occurrence=200

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