# NTSB investigations: Berkshire Mfg. CONCEPT 70

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 MIA96LA080](https://openairdocs.org/ntsb/MIA96LA080.md): Berkshire Concept 70 · Boynton Beach, FL · Accident · No injuries · Limited investigation · Final report · Feb 20, 1996 · N29BW · Destroyed
  > an engine loss of power and fire for undetermined reasons.
- [NTSB MIA93LA150](https://openairdocs.org/ntsb/MIA93LA150.md): Berkshire Concept 70 · Boynton Beach, FL · Accident · No injuries · Limited investigation · Final report · Jul 4, 1993 · N29BW · Substantial damage
  > The pilot's improper in-flight planning and the lack of adequate thermal lift.
- [NTSB SEA92LA151](https://openairdocs.org/ntsb/SEA92LA151.md): Berkshire Mfg. Concept 70 · Ephrata, WA · Accident · No injuries · Limited investigation · Final report · Jul 12, 1992 · N382W · Substantial damage
  > Inadequate in-flight planning/decision. Factors to the accident were: no thermal lift and rough/uneven terrain.
- [NTSB NYC83LA197](https://openairdocs.org/ntsb/NYC83LA197.md): Berkshire Concept 70 · Fairfield, PA · Accident · No injuries · Limited investigation · Final report · Jul 28, 1983 · N6BM · Substantial damage
  > During the apch, the plt encountered unfavorable wind conditions & the glider touched down long. In order to avoid an embankment beyond the end of the strip, the plt turned toward a parallel rwy overrun area. Subsequently, the left wing hit two 55 gal drums…
- [NTSB DEN76FTM07](https://openairdocs.org/ntsb/DEN76FTM07.md): Berkshire 70 · Heber City, UT · Accident · Minor injuries · Closed · Sep 20, 1975 · N4KX · Destroyed
- [NTSB MIA7LDKG11](https://openairdocs.org/ntsb/MIA7LDKG11.md): Berkshire C70 · Cordele, GA · Accident · No injuries · Closed · Aug 19, 1975 · N29BW · Substantial damage
- [NTSB DEN73AD053](https://openairdocs.org/ntsb/DEN73AD053.md): Berkshire C-70 · Burns, WY · Accident · 1 fatal · Closed · Jun 10, 1973 · N10QT · Destroyed
- [NTSB OAK73FXQ04](https://openairdocs.org/ntsb/OAK73FXQ04.md): Concept 70 · Minden, NV · Accident · Minor injuries · Closed · Jul 19, 1972 · N44CW · Destroyed

## 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 ('1240104'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1240104

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