# NTSB investigations: Jacobs R755A series: In flight encounter with weather

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 MIA05CA144](https://openairdocs.org/ntsb/MIA05CA144.md): Grumman American G-164 · Sabana Grande, PR · Accident · Minor injuries · Data collection · Final report · Aug 4, 2005 · N460Y · Substantial damage
  > The pilot's inadvertent encounter with a downdraft in mountainous terrain resulting in an uncontrolled descent and collision with the terrain.
- [NTSB CHI02LA212](https://openairdocs.org/ntsb/CHI02LA212.md): Grumman G-164 · Central City, NE · Accident · No injuries · Limited investigation · Final report · Jul 25, 2002 · N5296 · Substantial damage
  > The pilot was not able to maintain clearance with the trees when the airplane encountered a downdraft at a low altitude. An additional cause was the pilot's inadequate evaluation of the approaching weather conditions. Factors associated with the accident were…
- [NTSB DEN86LA162](https://openairdocs.org/ntsb/DEN86LA162.md): Grumman G-164 · Wessington, SD · Accident · No injuries · Limited investigation · Final report · Jun 12, 1986 · N751Y · Substantial damage
  > According to the plt, during maneuvering on a swath run, the acft he was piloting encountered a downdraft, forcing the acft down until contact with the ground.
- [NTSB DEN84LA237](https://openairdocs.org/ntsb/DEN84LA237.md): Grumman G-164 · Wessington, SD · Accident · No injuries · Limited investigation · Final report · Jul 25, 1984 · N751Y · Substantial damage
  > Plt stated that during loading for aerial application, he failed to note approaching roll cloud which usually signifies localized turbulence and strong, gusting winds. On takeoff roll, wind shift noted and at 100 ft altitude, heavy turbulence was encountered.…

## 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.engine_model_code IN ('35006')
    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" = 240))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=35006&occurrence=240

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