# NTSB investigations: Helio H-250: In flight collision with object

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 DFW06CA116](https://openairdocs.org/ntsb/DFW06CA116.md): Heliotech H-250 · Woodville, TX · Accident · Minor injuries · Data collection · Final report · May 1, 2006 · N777LF · Substantial damage
  > The pilot's failure to maintain clearance with obstructions at the departure end of the airstrip during an aborted landing. A contributing factor was dusk light conditions.
- [NTSB ANC85LA119](https://openairdocs.org/ntsb/ANC85LA119.md): Helio 250 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Jul 6, 1985 · N5460E · Substantial damage
  > The plt reported that he took off downwind with a heavily loaded acft. He estimated the wind was from the north at 4 gusting to 6 KTS. He stated that after climbing about 100 ft, the acft began to mush as he began retracting the flaps. Subsequently, it…
- [NTSB ANC85LA019](https://openairdocs.org/ntsb/ANC85LA019.md): Helio H-250 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Nov 1, 1984 · N5450E · Substantial damage
  > The plt stated during two telephone interviews that he hit trees during takeoff and then continued his two hour flt to to the homer arpt. The left wing was damaged and both left and right sides of the horizontal stabilizer were crushed andbent up about 19…

## 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 ('4300302')
    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" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4300302&occurrence=220

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