NTSB investigations, 1996
3 cases where the first occurrence was “Rotor failure/malfunction”.
Cases per year
| 1994 | 1 |
|---|---|
| 1995 | 4 |
| 1996 | 3 |
| 1997 | 2 |
| 1998 | 8 |
| 1999 | 2 |
| 2000 | 3 |
| 2001 | 7 |
| 2002 | 4 |
| 2003 | 5 |
| 2004 | 4 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 2 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB FTW96LA386Accident · Minor injuriesLimited investigationFinal reportBell 206L-1/C-30P · Morgan City, LAThe 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 LAX96LA315Accident · 1 fatalLimited investigationFinal reportBell 47-G4A · Guamloss of tail rotor control due to improper maintenance.NTSB IAD96LA094Accident · No injuriesLimited investigationFinal reportRotorway Exec 152 · Gretna, VAfailure 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.