# NTSB investigations: Lycoming 0-435: Loss of control - in flight

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 ATL07CA095](https://openairdocs.org/ntsb/ATL07CA095.md): Zaverton Elmer PJ260 SR Aero Sport · Lehighton, PA · Accident · Minor injuries · Data collection · Final report · Jun 23, 2007 · N85136 · Substantial damage
  > The failure of the pilot to maintain sufficient airspeed while maneuvering to avoid a stall, which resulted in an inadvertent stall/spin, and collision with trees and terrain.
- [NTSB CHI98LA218](https://openairdocs.org/ntsb/CHI98LA218.md): Hiller UH-12E · Park Rapids, MN · Accident · No injuries · Limited investigation · Final report · Jun 24, 1998 · N86663 · Substantial damage
  > the pilot's failure to maintain control of aircraft. Factors were the congested helipad conditions and wind gusts.
- [NTSB ATL93LA009](https://openairdocs.org/ntsb/ATL93LA009.md): Bell 47G-3B-1 · Centre, AL · Accident · No injuries · Limited investigation · Final report · Oct 9, 1992 · N31FG · Substantial damage
  > The pilot's failure to maintain main rotor RPM, which resulted in an in flight loss of control and collision with terrain.
- [NTSB MIA85LA224](https://openairdocs.org/ntsb/MIA85LA224.md): Bell TH-13T · Quitman, GA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1985 · N31FG · Substantial damage
  > Pilot stated that after completing a left turn at the end of a cotton field, the aircraft yawed sharply to the left and the yaw could not be controlled with cyclic control. Another left turn at the oppsite end of the field the aircraft again yawed to the…

## 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.engine_model_code IN ('41516')
    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" = 250))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41516&occurrence=250

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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.