NTSB investigations: Pratt & Whitney Canada PT6A-34AG
7 cases on aircraft whose registry engine model is Pratt & Whitney Canada PT6A-34AG, where the defining event was Loss of control in flight. 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
| 2014 | 1 |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2020 | 2 |
| 2025 | 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 ('52251')
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\" = '240'))
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 ('52251')
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" = '240'))
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 CEN25LA219Accident · Minor injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Charleston, MOThe pilot’s loss of control during the spray pass, which resulted in impact with vegetation and terrain.NTSB CEN20LA306Accident · 1 fatalClass 3 · LimitedFinal reportAir Tractor AT502 · Grant, NEThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering during an agricultural flight, which resulted in an aerodynamic stall and a loss of control at too low of an altitude to recover. Contributing to the accident was the pilot’s…NTSB ERA20CA231Accident · No injuriesClass 4 · Data collectionFinal reportAir Tractor AT502 · South Bay, FLThe pilot's loss of airplane control during the approach, which resulted in an aerodynamic stall and impact with vegetation and terrain.NTSB GAA17CA030Accident · Minor injuriesData collectionFinal reportAir Tractor AT 502 · Paragould, ARThe pilot's failure to avoid electrical wires during low-altitude maneuvering, which resulted in a wire strike.NTSB WPR15LA176Accident · 1 fatalLimited investigationFinal reportAyres S2R T34 · Blythe, CAThe pilot's failure to maintain adequate airspeed while maneuvering, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.NTSB CEN15LA222Accident · 1 fatalLimited investigationFinal reportAir Tractor AT 502B · Basile, LAThe pilot’ failure to maintain adequate clearance from trees while maneuvering during an aerial application flight.NTSB CEN14CA341Accident · Minor injuriesData collectionFinal reportAir Tractor AT 402B · Sudan, TXThe pilot's lapse in monitoring the airplane's speed during a low level aerial application maneuver and its subsequent stall during the maneuver.