# NTSB investigations: Agusta AGUSTA A109: Airframe/component/system failure/malfunction

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 NYC90MA009](https://openairdocs.org/ntsb/NYC90MA009.md): Agusta A109A Mkii · Lacey Township, NJ · Accident · 5 fatal · Major investigation · Final report · Oct 10, 1989 · N21FL · Destroyed
  > In-flight separation of a main rotor blade due to fatigue failure of the main rotor blade spar, which originated at a manufacturing induced scratch (tool mark) that was the result of inadequate quality control.
- [NTSB MKC87IA070](https://openairdocs.org/ntsb/MKC87IA070.md): Agusta A109 · Lincoln, NE · Incident · No injuries · Incident investigation · Final report · Mar 30, 1987 · N4GH · Minor damage
  > The PIC stated that he was ground taxiing the helo to the ramp area at duncan aviation to shutdown for refueling. During the taxi, the PIC heard a loud 'bang' eminating fm the rear of the helo. The PIC lowered collective pitch and no further noise was heard…
- [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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0260109')
    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" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0260109&occurrence=130

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