NTSB investigations: Allison 250-C30 series
6 cases on aircraft whose registry engine model is Allison 250-C30 series, where the defining event was Low altitude operation/event. 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
| 2009 | 1 |
|---|---|
| 2010 | 1 |
| 2014 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03015')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '220'))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03015')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '220'))
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 WPR21LA338Accident · No injuriesClass 4 · LimitedFinal reportBell 206L-3 · Tillamook, ORThe pilot's failure to maintain clearance from a powerline during a low reconnaissance, with sun glare.NTSB WPR20LA163Accident · 3 fatalClass 3 · LimitedFinal reportBell 206 · Fairfield, CAThe pilot’s failure to maintain adequate clearance from powerlines while conducting external load operations, which resulted in the main rotor contacting a wire and a subsequent collision with terrain.NTSB WPR19LA071Accident · 1 fatalClass 3 · LimitedFinal reportBell 206 · Ashland, ORThe pilot's decision to continue visual flight into deteriorating weather, which resulted in an encounter with instrument meteorological conditions and spatial disorientation leading to a loss of control.NTSB CEN14FA122Accident · 3 fatalField investigationFinal reportBell 206L 3 · Silt, COThe pilot’s inadequate preflight planning for a low-level aerial surveillance flight of power transmission lines, which led to his being unaware of the crossing power line while flying toward the sun and his subsequent failure to maintain sufficient clearance…NTSB ERA11CA082Accident · Serious injuriesData collectionFinal reportBell 206L-3 · Canal Point, FLThe pilot's failure to maintain clearance from the ground while maneuvering at a low altitude. Contributing to the accident was the pilot’s fatigue.NTSB ERA09FA419Accident · 3 fatalField investigationFinal reportMD Helicopter 530 (369FF) · Camp Butler, IraqThe pilot’s failure to maintain terrain clearance during a low-level course reversal.