# NTSB investigations: Raven Industries S77A: 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 DEN89LA145](https://openairdocs.org/ntsb/DEN89LA145.md): Raven S77A · Rio Rancho, NM · Accident · Serious injuries · Limited investigation · Final report · Jun 21, 1989 · N4207U · No damage
  > A hard landing due to the pilots failure to accurately evaluate the weather conditions along with a delay in making a precautionary landing. Factors contributing to the accident were high winds and wind shear along with rough/uneven terrain.
- [NTSB DEN87LA174](https://openairdocs.org/ntsb/DEN87LA174.md): Raven S77A · Silverthorne, CO · Accident · Serious injuries · Limited investigation · Final report · Jul 3, 1987 · N41986 · No damage
  > The commercial balloon pilot was conducting passenger flights. A landing was being made on a parking lot with ten knots of wind and gusts to twenty knots. Just at touchdown a light gust caught the balloon and dragged it one hundred feet. One passenger chose…

## 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 ('7480650')
    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=7480650&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.