NTSB investigations: Allison T63 series
8 cases on aircraft whose registry engine model is Allison T63 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
| 2008 | 2 |
|---|---|
| 2012 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 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 c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03031')
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 ('03031')
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 ERA22LA341Accident · No injuriesClass 4 · LimitedFinal reportGarlick OH-58A+ · Bloomsburg, PAThe pilot's inadequate preflight planning and visual lookout, which resulted in impact with a powerline.NTSB WPR22LA140Accident · Minor injuriesClass 4 · LimitedFinal reportBell OH-58A · Merced, CAThe pilot’s failure to see and avoid wires while conducting an aerial application flight, which resulted in a wire strike and ground impact.NTSB CEN21LA225Accident · 1 fatalClass 3 · LimitedFinal reportBell OH58A · Ulysses, KSThe pilot’s failure to maintain clearance from a power line during the aerial application flight, which resulted in collision with the power line and subsequent impact with terrain.NTSB WPR20CA092Accident · No injuriesData collectionFinal reportBell OH 58A · Colexico, CAThe pilot's failure to arrest the descent rate while maneuvering at low altitude, which resulted in impact with terrain.NTSB CEN18LA183Accident · Serious injuriesLimited investigationFinal reportHughes 369A · Stoneburg, TXThe pilot's unsafe and aggressive operation of the helicopter at low altitude, which resulted in impact with trees.NTSB WPR12LA371Accident · Serious injuriesLimited investigationFinal reportArrow Falcon Exporters OH58 · Escalon, CAThe pilot’s failure to maintain clearance from trees during a low-altitude agricultural application, which resulted in a loss of control and impact with the ground.NTSB ERA09CA090Accident · No injuriesData collectionFinal reportBell OH-58C · Osceola County, FLThe pilot's misjudgment of altitude during low-altitude spraying operations, which resulted in an in-flight collision with water.NTSB LAX08CA054Accident · No injuriesData collectionFinal reportBell OH-58A · Brawley, CAThe pilot's failure to maintain clearance from obstacles. A factor in the accident was the dark night conditions.