NTSB investigations: Allison 250 series, CA
9 cases on aircraft whose registry engine model is Allison 250 series. 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
| 1980 | 2 |
|---|---|
| 1981 | 1 |
| 1984 | 2 |
| 1985 | 1 |
| 1993 | 1 |
| 2011 | 1 |
| 2024 | 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\" = 'CA' 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 ('03014', '03019'))
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" = 'CA' 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 ('03014', '03019'))
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 WPR24LA093Accident · Minor injuriesClass 3 · LimitedFinal reportBell 47G-3B-1 · Garey, CAMaintenance personnel’s failure to properly check the torque paint on a fuel control unit B-nut, which resulted in the loosening of the B-nut, a loss of engine power at a low altitude, and a subsequent impact with terrain.NTSB WPR11LA379Accident · No injuriesLimited investigationFinal reportBell 47G-3B-2 · Los Banos, CAThe pilot’s inadequate preflight, and contamination of both the engine compressor section and the main rotor blades, which resulted in reduced performance of the engine and rotor system.NTSB LAX94LA054Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Salinas, CAa fatigue failure of the torsion-tension bar pin due to fretting corrosion. A factor in this accident was an inadequate quality of material utilized in the manufacture of the pin.NTSB LAX85LA305Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Gonzales, CAWhile cruising during an ag flight the acft's eng began losing pwr. At the time the acft was about 50 ft AGL & was travelling at 50 mph. The plt made a forced ldg onto a nearby plowed fld. Upon touchdown the rt skid dug into a furrow & the acft rolled over.…NTSB LAX85LA002Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Firebaugh, CAThe acft collided with terrain while on an aerial application flt. The plt stated he, 'heard a loud bang' while spraying. Then the 'nose of the helicopter dove radically down', and he crashed into the field. Examination of the site revealed that one of the…NTSB LAX84LA428Accident · Serious injuriesLimited investigationFinal reportHiller UH-12ET · Delano, CAThe Hiller UH-12 helicopter (with a soloy conversion) was on a spray run when the eng began losing power. The plt headed for an 'open spot in the trees', but all power was lost the acft collided with almond trees. Only 15 to 18 ozs of fuel were remaining in…NTSB LAX81DVD28Accident · No injuriesClosedHiller Acft UH-12E · Orleans, CANTSB LAX81DXQ01Accident · No injuriesClosedHiller Acft UH-12E · Quincy, CANTSB LAX80DVG30Accident · Minor injuriesClosedHiller UH-12J · Frks Of Salmn, CA