# NTSB investigations: Bell 47G: Hard landing

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 MIA98LA170](https://openairdocs.org/ntsb/MIA98LA170.md): Bell 47G · Bunnell, FL · Accident · No injuries · Limited investigation · Final report · May 28, 1998 · N182JR · Substantial damage
  > The pilot-in-command(CFI) failure to maintain control of the aircraft.
- [NTSB SEA89LA177](https://openairdocs.org/ntsb/SEA89LA177.md): Bell 47G · Corvallis, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 25, 1989 · N47VS · Destroyed
  > Student pilot's improper use of the collective control while performing hovering autorotations, and the instructor's inadequate supervision of the student's actions, which resuled in hard landings. In addition, the engine mount was significantly weakened…
- [NTSB MKC89LA195](https://openairdocs.org/ntsb/MKC89LA195.md): Bell 47G · Ozark, MO · Accident · No injuries · Limited investigation · Final report · Sep 2, 1989 · N182JR · Substantial damage
  > The failure of the dual student to properly flare during an autorotative landing resulting in a hard landing and partial failure of the right skid. The CFI also failed to properly monitor the student's actions on the flight controls.
- [NTSB LAX84LA108](https://openairdocs.org/ntsb/LAX84LA108.md): Bell 47G · El Cajon, CA · Accident · No injuries · Limited investigation · Final report · Dec 21, 1983 · N4475 · Substantial damage
  > During a demonstration to show his student how to autorotate fm a 2 ft height AGL the instructor reduced pwr and inadvertently applied fwd cyclic. The front portion of the skids hit the gd followed by the main rotor blades. Helicopter then rocked backwards,…

## 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 ('1181002')
    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" = 200))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181002&occurrence=200

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.