# NTSB investigations: Lycoming GO-480 series: 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 ANC97LA128](https://openairdocs.org/ntsb/ANC97LA128.md): Helio H-295 · Fort Yukon, AK · Accident · No injuries · Limited investigation · Final report · Aug 23, 1997 · N6465V · Substantial damage
  > failure of the pilot to maintain directional control of the airplane, which resulted in a swerve and collision with a tree as the pilot continued the takeoff, subsequently jamming the stabilator and causing the plane to crash in water.
- [NTSB LAX96LA174](https://openairdocs.org/ntsb/LAX96LA174.md): Helio H-295 · Grand Canyon, AZ · Accident · No injuries · Limited investigation · Final report · Apr 19, 1996 · N6470V · Substantial damage
  > the partial failure of the landing gear brake system resulting from loss of the clips retaining the right-hand brake disk. The resulting loss of braking authority impaired the pilot's ability to maintain directional control in a left quartering tailwind and…
- [NTSB SEA92LA155](https://openairdocs.org/ntsb/SEA92LA155.md): Helio H-295 · Laramie, WY · Accident · No injuries · Limited investigation · Final report · Jul 14, 1992 · N68857 · Substantial damage
  > The pilot's failure to maintain runway alignment, and an inadvertent ground-loop. Factors include crosswinds.
- [NTSB ATL91LA065](https://openairdocs.org/ntsb/ATL91LA065.md): Helio H-295 · Dunlap, TN · Accident · No injuries · Limited investigation · Final report · Mar 12, 1991 · N42013 · Substantial damage
  > Failure of the pilot to maintain control of the aircraft, which resulted in a ground loop/swerve. The crosswind was a related factor.
- [NTSB ANC88LA122](https://openairdocs.org/ntsb/ANC88LA122.md): Helio H-295 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Sep 4, 1988 · N456JH · Substantial damage
  > During the takeoff roll on the runway at approximately 20 to 25 mph the pilot lost directional control of the airplane. The airplane looped to the right.
- [NTSB LAX84LA387](https://openairdocs.org/ntsb/LAX84LA387.md): Helio H-295 · Santa Ana, CA · Accident · No injuries · Limited investigation · Final report · Jul 9, 1984 · N222LT · Substantial damage
  > As the tailwheel settled to the rwy the acft veered right and ground looped collapsing the left main ldg gear. The left main gear oleo strut failed due to tensile overload.
- [NTSB ANC83LA136](https://openairdocs.org/ntsb/ANC83LA136.md): Helio H-295 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Jul 23, 1983 · N6481V · Substantial damage
  > The plt reported that during the landing roll, the left brake failed & the acft ran off the right side of the rwy. Reportedly, the acft was damaged when it went off the gravel rwy at or near the departure end. No malfunction or failure of the brake assembly…
- [NTSB LAX83FA100](https://openairdocs.org/ntsb/LAX83FA100.md): Helio H-395 · Tucson, AZ · Accident · No injuries · Field investigation · Final report · Feb 13, 1983 · N4160D · Substantial damage
  > The acft ground looped during landing and collided with an acft arresting system component. The pilot was landing on RWY11L. He did not report any difficulty controlling the acft until he began his flare. At that time he stated that a slight air disturbance…

## 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 ('41527')
    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?engine=41527&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.