NTSB investigations: Allison 250 SER 400HP, AZ
9 cases on aircraft whose registry engine model is Allison 250 SER 400HP. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1969 | 1 |
|---|---|
| 1975 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1982 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 2002 | 1 |
| 2011 | 1 |
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 c.\"eventStateOrRegion\" = 'AZ' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03013', '03012'))
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 c."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 WPR11CA243Accident · No injuriesData collectionFinal reportBell 206B3 · Glendale, AZThe certified flight instructor's failure to maintain adequate main rotor RPM during the autorotation.NTSB ANC03LA015Accident · 1 fatalLimited investigationFinal reportBell 206B · Kingman, AZThe pilot's failure to maintain altitude/clearance from obstacles during cruise flight, which resulted in the helicopter striking a transmission line, and subsequently the ground.NTSB LAX98LA139Accident · No injuriesLimited investigationFinal reportBell 206B · Grand Canyon, AZThe malfunction and erratic speed control of the engine's governor, and the flight instructor's delayed remedial action.NTSB LAX97LA030Accident · Minor injuriesLimited investigationFinal reportBell 206B · Supai, AZimproper routing of the external cargo hoist cable (over helicopter skid), which resulted in lateral imbalance and roll-over of the helicopter, as weight on the cable became effective.NTSB LAX82DA140Accident · 3 fatalFinal reportHughes 369HS · 8 S. Of Page, AZThe aircraft was number two in a trail of three helicopters flying up the Colorado river at marble canyon to page, AZ when it struck an aerial cableway stretching across the river, 22 ft above the water. Witnesses stated that after the collision the…NTSB LAX80DUJ45Accident · Minor injuriesClosedBell 206B · Ashfork, AZNTSB LAX79FA064Accident · Minor injuriesClosedBell 206B · Grand Canyon, AZNTSB LAX75DUJ55Accident · No injuriesClosedBell 206B · Glendale, AZNTSB LAX70D0198Accident · No injuriesClosedBell 47G3B1 · Parker, AZ