# NTSB investigations, 1996: Rotor failure/malfunction

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 FTW96LA386](https://openairdocs.org/ntsb/FTW96LA386.md): Bell 206L-1/C-30P · Morgan City, LA · Accident · Minor injuries · Limited investigation · Final report · Sep 13, 1996 · N2654 · Substantial damage
  > The loss of tail rotor control as result of a tail rotor blade strike by an undetermined object. A factor was the lack of suitable terrain for the forced landing.
- [NTSB LAX96LA315](https://openairdocs.org/ntsb/LAX96LA315.md): Bell 47-G4A · Guam · Accident · 1 fatal · Limited investigation · Final report · Aug 26, 1996 · N474GA · Destroyed
  > loss of tail rotor control due to improper maintenance.
- [NTSB IAD96LA094](https://openairdocs.org/ntsb/IAD96LA094.md): Rotorway Exec 152 · Gretna, VA · Accident · No injuries · Limited investigation · Final report · Jun 10, 1996 · N7182Z · Destroyed
  > failure of the bearing assembly shaft insert inside the main rotor shaft. Related factors are the jammed rotorcraft flight control which restricted the pilot's ability to control the helicopter and resulted in a hard touchdown.

## 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") = 1996
  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" = 132)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=132&year=1996

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