# NTSB investigations, 1990: Roll over

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 ANC91FA001](https://openairdocs.org/ntsb/ANC91FA001.md): Hughes 500D · Kennsington, AK · Accident · Serious injuries · Field investigation · Final report · Oct 4, 1990 · N1107G · Substantial damage
  > The loss of control during takeoff due to dynamic rollover. Contributing to the accident was the pilot-in-command's selection of an uneven landing area.
- [NTSB LAX90LA335](https://openairdocs.org/ntsb/LAX90LA335.md): Enstrom F28F · Beatty, NV · Accident · No injuries · Limited investigation · Final report · Sep 6, 1990 · N8620A · Substantial damage
  > The pilot's selection of unsuitable terrain on which to land. Loose shale rock and sloping downhill terrain were factors in the accident.
- [NTSB LAX90LA303](https://openairdocs.org/ntsb/LAX90LA303.md): Hughes 369D · Santa Monica, CA · Accident · No injuries · Limited investigation · Final report · Aug 24, 1990 · N5012A · Substantial damage
  > The pilot's decision to exit the helicopter with the engine running and no one at the controls.
- [NTSB ANC90LA119](https://openairdocs.org/ntsb/ANC90LA119.md): Bell 206B · Goodnews Bay, AK · Accident · No injuries · Limited investigation · Final report · Jul 18, 1990 · N4796B · Substantial damage
  > The pilot selected unsuitable terrain. The wet & soft tundra was a factor.
- [NTSB LAX90LA210](https://openairdocs.org/ntsb/LAX90LA210.md): Hughes 269B · Paso Robles, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1990 · N691RR · Substantial damage
  > This accident was dynamic rollover due to the terrain slope exceeding the capability of the helicopter.
- [NTSB LAX90LA186](https://openairdocs.org/ntsb/LAX90LA186.md): Hughes 269A · La Verne, CA · Accident · Minor injuries · Limited investigation · Final report · May 23, 1990 · N8793F · Substantial damage
  > Ground resonance due to an inadequately maintained strut.
- [NTSB MKC90LA117](https://openairdocs.org/ntsb/MKC90LA117.md): Bell 47G · Wynne, AR · Accident · Serious injuries · Limited investigation · Final report · May 14, 1990 · N41SD · Substantial damage
  > Landing gear skid entangled with a fuel hose. A factor was the pilot's inadequate preflight inspection.
- [NTSB ATL90LA112](https://openairdocs.org/ntsb/ATL90LA112.md): Robinson R22 Beta · Chamblee, GA · Accident · No injuries · Limited investigation · Final report · May 11, 1990 · N2579W · Substantial damage
  > Failure of the student (rated) pilot to maintain control of the helicopter, and insufficient supervision by the instructor pilot (CFI).
- [NTSB FTW90LA107](https://openairdocs.org/ntsb/FTW90LA107.md): Bell 206BIII · Kaplan, LA · Accident · No injuries · Limited investigation · Final report · May 8, 1990 · N2187P · Substantial damage
  > Restricted movement of the right skid assembly causing the lateral center of gravity to be exceeded during the attempted take off.
- [NTSB LAX90LA164](https://openairdocs.org/ntsb/LAX90LA164.md): Bell 47G · Riverside, CA · Accident · Minor injuries · Limited investigation · Final report · May 4, 1990 · N9FK · Substantial damage
  > The pilot's failure to maintain control of the helicopter. A factor related to the accident was: the pilot's lack of experience in the type of aircraft.
- [NTSB LAX90LA091](https://openairdocs.org/ntsb/LAX90LA091.md): Robinson R-22 Beta · Corona, CA · Accident · No injuries · Limited investigation · Final report · Feb 16, 1990 · N777FH · Substantial damage
  > Helicopter rolling over in a dirt field after the pilot was demonstrating an engine faiure and autorotation maneuver.
- [NTSB FTW90LA061](https://openairdocs.org/ntsb/FTW90LA061.md): Robinson R22 · San Angelo, TX · Accident · No injuries · Limited investigation · Final report · Feb 1, 1990 · N25318 · Substantial damage
  > Inadequate preflight by the pilot by not identifying and removing the tie-down.

## 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") = 1990
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 380)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=380&year=1990

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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.