# NTSB investigations: Bell 47D1, AR

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 FTW91LA091](https://openairdocs.org/ntsb/FTW91LA091.md): Bell 47D-1 · Peach Orchard, AR · Accident · No injuries · Limited investigation · Final report · Jun 5, 1991 · N8117 · Substantial damage
  > The pilot's failure to maintain adequate main rotor RPM resulting in deteriorated helicopter performance. A factor was the tailwind condition.
- [NTSB MKC90LA144](https://openairdocs.org/ntsb/MKC90LA144.md): Bell 47D-1 · Fair Oaks, AR · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1990 · N8117 · Substantial damage
  > Tail rotor cable disengagement due to inadequate maintenance.
- [NTSB FTW82DA189](https://openairdocs.org/ntsb/FTW82DA189.md): Bell 47D-1 · Harrisburg, AR · Accident · No injuries · Final report · May 20, 1982 · N93067 · Substantial damage
  > During an agricultural spraying operation the pilot turned downwind and the tail rotor struck a rice dike. The pilot lost control and the aircraft landed hard. The main rotor severed the tail boom. Investigation revealed the aircraft had been loaded within…
- [NTSB FTW77DPG53](https://openairdocs.org/ntsb/FTW77DPG53.md): Bell 47D1 · Alicia, AR · Accident · No injuries · Closed · Jun 29, 1977 · N10190 · Substantial damage
- [NTSB FTW76FPG68](https://openairdocs.org/ntsb/FTW76FPG68.md): Bell 47B · Ravenden, AR · Accident · Serious injuries · Closed · Jun 17, 1976 · N163B · Substantial damage
- [NTSB FTW75DPG02](https://openairdocs.org/ntsb/FTW75DPG02.md): Bell 47D-1 · Almyra, AR · Accident · No injuries · Closed · Jul 6, 1974 · N13012 · Substantial damage
- [NTSB FTW74DPG10](https://openairdocs.org/ntsb/FTW74DPG10.md): Bell 47G · Black Rock, AR · Accident · No injuries · Closed · Aug 9, 1973 · N163B · Substantial damage
- [NTSB FTW73DPG34](https://openairdocs.org/ntsb/FTW73DPG34.md): Bell 47D · Plumerville, AR · Accident · No injuries · Closed · Sep 20, 1972 · N925V · Substantial damage
- [NTSB FTW68A0032](https://openairdocs.org/ntsb/FTW68A0032.md): Bell 47D1 · Russellville, AR · Accident · No injuries · Closed · Sep 18, 1967 · N903B · Substantial damage
- [NTSB UNK64X2222](https://openairdocs.org/ntsb/UNK64X2222.md): Bell 47D1 · Harrisburg, AR · Accident · No injuries · Closed · Jun 10, 1964 · N322A · Substantial damage

## 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" = 'AR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1180802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1180802&state=AR

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