# NTSB investigations: Allison 250-C20 series, MA

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 IAD02LA094](https://openairdocs.org/ntsb/IAD02LA094.md): Garlick OH-58AT · Rochester, MA · Accident · 1 fatal · Limited investigation · Final report · Sep 14, 2002 · N444JB · Substantial damage
  > The pilot's failure to center the sling load prior to commencing forward flight. Also causal, was the pilot's improper decision to attempt a takeoff with a quartering tailwind, which resulted in an engine compressor stall.
- [NTSB NYC90LA187](https://openairdocs.org/ntsb/NYC90LA187.md): Bell 206B · Fitchburg, MA · Accident · No injuries · Limited investigation · Final report · Aug 4, 1990 · N750LT · Substantial damage
  > The pilot's failure to assure that adequate fuel was on board for the flight.
- [NTSB NYC88LA201](https://openairdocs.org/ntsb/NYC88LA201.md): Bell 206B · Plymouth, MA · Accident · No injuries · Limited investigation · Final report · Jul 13, 1988 · N543CC · Substantial damage
  > A loss of power to the engine because the fuel control was not properly adjusted and collision with terrain due to an unsuitable landing area.
- [NTSB NYC87LA058](https://openairdocs.org/ntsb/NYC87LA058.md): Agusta A109AII · So. Dartmouth, MA · Accident · Minor injuries · Limited investigation · Final report · Jan 13, 1987 · N300CC · Substantial damage
  > Agusta N300CC departed a helipad in front of claremont corp president's residence in south Dartmouth, Massachusetts. As the helicopter was hovering prior to moving forward, the tail rotor blade, s/n 124, failed. The tail rotor assembly and gearbox separated…

## 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."eventStateOrRegion" = 'MA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03020&state=MA

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