# NTSB investigations: Franklin 6V4 series, 1992

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 MIA93LA032](https://openairdocs.org/ntsb/MIA93LA032.md): Hiller UH-12C · New Smyrna Bch, FL · Accident · No injuries · Limited investigation · Final report · Dec 21, 1992 · N38767 · Substantial damage
  > The pilot-in-command's improper application of cyclic and collective pitch control during an autorotative landing.
- [NTSB SEA92LA141](https://openairdocs.org/ntsb/SEA92LA141.md): Bell-World 47D1 · Wenatchee, WA · Accident · No injuries · Limited investigation · Final report · Jun 29, 1992 · N17301 · Destroyed
  > Carburetor ice and the pilot in command's not being able to maintain clearance. Factors contributing to the accident were: carburetor icing conditions and tree(s).
- [NTSB MIA92LA102](https://openairdocs.org/ntsb/MIA92LA102.md): Bell 47-D-1 · Fayette, MS · Accident · Minor injuries · Limited investigation · Final report · Apr 2, 1992 · N322A · Substantial damage
  > The pilot in commands failure to insure the proper fuel quantity for the flight was placed on the aircraft and his failure to monitor fuel quantity during flight resulting in fuel exhaustion.
- [NTSB MIA92LA069](https://openairdocs.org/ntsb/MIA92LA069.md): Bell 47D1 · Cross City, FL · Accident · No injuries · Limited investigation · Final report · Jan 27, 1992 · N93067 · Substantial damage
  > Partial loss of engine power due to undetermined reasons and unsuitable terrain encountered during the autorotative landing.

## 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 year(c."eventDate") = 1992
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27033'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27033&year=1992

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