# NTSB investigations: Robinson Helicopter R44 II: Fire/smoke (post-impact)

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 CEN23FA125](https://openairdocs.org/ntsb/CEN23FA125.md): Robinson Helicopter R44 · Port O'Connor, TX · Accident · 2 fatal · Class 3 · Field · Final report · Mar 7, 2023 · N494SH · Destroyed
  > The pilot’s initiation of the visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of helicopter control. Contributing to the accident was the pilot’s flicker vertigo during the flight.
- [NTSB WPR09CA470](https://openairdocs.org/ntsb/WPR09CA470.md): Robinson Helicopter R44 II · Mt Charleston, NV · Accident · Minor injuries · Data collection · Final report · Sep 28, 2009 · N29LE · Destroyed
  > The pilot's failure to maintain aircraft control and terrain clearance while maneuvering at a low altitude above high terrain. Contributing to the accident was a downdraft and high density altitude.
- [NTSB CHI08FA293](https://openairdocs.org/ntsb/CHI08FA293.md): Robinson R44 II · Kenosha, WI · Accident · 2 fatal · Field investigation · Final report · Sep 21, 2008 · N999ZD · Destroyed
  > The pilots failure to maintain clearance from terrain resulting in an in-flight collision with a house. Contributing to the accident was the night instrument meteorological conditions (IMC) and the pilot's lack of experience of flying in IMC.
- [NTSB DFW08FA218](https://openairdocs.org/ntsb/DFW08FA218.md): Robinson R44 II · Ridgedale, MO · Accident · 2 fatal · Field investigation · Final report · Aug 29, 2008 · N41411 · Destroyed
  > An in-flight loss of control for undetermined reasons.
- [NTSB DFW08LA122](https://openairdocs.org/ntsb/DFW08LA122.md): Robinson R44 · Bartlett, TX · Accident · 1 fatal · Limited investigation · Final report · Apr 28, 2008 · N477SH · Substantial damage
  > The pilot's failure to maintain tail rotor clearance from terrain (embankment) during takeoff.

## 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 ('7640122', '7640123')
    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" = '170' 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/170/sequence?model=7640122

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