# NTSB investigations: Mcdonnell Douglas Helicopter 369E: Low altitude operation/event

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 ERA21LA262](https://openairdocs.org/ntsb/ERA21LA262.md): Mcdonnell Douglas Helicopter 369E · Swan Lake, NY · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 18, 2021 · N371EE · Substantial damage
  > The pilot's failure to maintain adequate clearance from the power transmission tower structure during powerline maintenance work, which resulted in the helicopter's main rotor striking the lifeline support bracket for the tower catwalk and the subsequent loss…
- [NTSB ERA15CA055](https://openairdocs.org/ntsb/ERA15CA055.md): Mcdonnell Douglas Helicopter MD500 · Decatur, AL · Accident · No injuries · Data collection · Final report · Nov 18, 2014 · N8371F · Substantial damage
  > An undetermined pilot's failure to maintain clearance from an electrical transmission tower resulting in substantial damage to a main rotor blade. Postaccident investigation could not determine which of two pilots was flying the helicopter at the time the…

## 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_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '220' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/220/sequence?model=3027369

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