# NTSB investigations: Lake LA-4-200: Loss of control - on ground/water

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 IAD96FA074](https://openairdocs.org/ntsb/IAD96FA074.md): Lake LA-4-200 · Sunapee, NH · Accident · 1 fatal · Field investigation · Final report · May 9, 1996 · N5040L · Destroyed
  > the pilot's failure to maintain control of the airplane. Factors in this accident were: the pilot's lack of currency in type and model airplane, and not following the requirement for the pilot to have a flight instructor onboard during water landings.
- [NTSB CHI89LA125](https://openairdocs.org/ntsb/CHI89LA125.md): Aerofab Lake LA 4-200 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N65717 · Substantial damage
  > The pilot's encounter with unsuitable terrain (rough water) and his inability to maintain directional control.
- [NTSB NYC88LA182](https://openairdocs.org/ntsb/NYC88LA182.md): Lake LA-4-200 · Candlewood Lake, CT · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 1988 · N5033L · Substantial damage
  > The LA-4-200 made a takeoff under reported conditions of gusty wind and waves of 1 to 2 feet. The maximum demonstrated wave height for the aircraft is 1 foot. The pilot reported he aborted the takeoff due to a person on a jet ski in his way and as he tried to…
- [NTSB ANC87FA140](https://openairdocs.org/ntsb/ANC87FA140.md): Lake LA-4-200 · Coal Lake, AK · Accident · 1 fatal · Field investigation · Final report · Sep 5, 1987 · N39450 · Destroyed
  > The pilot of the airplane stated that he had step-taxied to the east end of the Lake in preparation for a takeoff to the west. During the take off run, the airplane struck the wake he had just created and became prematurely airborne. He reduced power in an…
- [NTSB BFO87LA059](https://openairdocs.org/ntsb/BFO87LA059.md): Lake LA-4-200 · Grafton, WV · Accident · Serious injuries · Limited investigation · Final report · Aug 16, 1987 · N59FC · Destroyed
  > According to the plt during the water landing the acft encountered the wake of a boat that had crossed the path of the acft. As a result the acft bounced about 20 ft high. The plt applied full power to recover; however, the acft impacted the water. He started…

## 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 ('5110310')
    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" = 260))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=5110310&occurrence=260

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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.