Final NTSB investigations: Pratt & Whitney PT6A-27 series
12 cases on aircraft whose registry engine model is Pratt & Whitney PT6A-27 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
| 1979 | 1 |
|---|---|
| 1991 | 1 |
| 1999 | 1 |
| 2000 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2022 | 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.\"completionStatus\" = 'Completed'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52141'))
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."completionStatus" = 'Completed'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52141'))
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 WPR25LA038Accident · No injuriesClass 3 · LimitedFinal reportDehavilland DHC-6-300 · Boulder City, NVA loss of directional control during the landing roll in gusting crosswind conditions.NTSB ERA22LA255Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-400A · Pemberton Township, NJThe pilot’s improper landing flare, which resulted in a hard, bounced landing and a subsequent loss of control.NTSB WPR20CA112Accident · No injuriesData collectionFinal reportDe Havilland DHC6 · Boulder City, NVThe trainee pilot's loss of directional control during landing and his subsequent unintentional control interference with the brakes and/or rudder during the trainer pilot's attempted remedial action, which resulted in a runway excursion and collision with a…NTSB ANC18LA027Accident · Serious injuriesLimited investigationFinal reportDehavilland DHC 6 Twin Otter · Arctic OceanThe flight crew's improper decision to deliberately operate the airplane at low altitude and along a flightpath that resulted in a collision with a pedestrian after takeoff. Contributing to the accident was the pedestrian's proximity to the runway.NTSB CEN17LA330Accident · No injuriesLimited investigationFinal reportAir Tractor AT 401 · Pearsall, TXThe fatigue crack of an engine cylinder, which resulted in a partial loss of engine power.NTSB ERA15LA343Accident · Serious injuriesLimited investigationFinal reportDehavilland DHC-6 · Louisburg, NCThe propeller’s movement to the beta position during landing for reasons that could not be determined during postaccident examination and testing, which resulted in an attempted go-around and subsequent loss of airplane control.NTSB CEN13LA239Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Bowling Green, MOThe failure of the engine supercharger's rear bearing, which resulted in the loss of engine power.NTSB ENG11IA032Incident · No injuriesIncident investigationFinal reportDehavilland DHC-6-300 · Peach Springs, AZA quality control failure in the Sungear, Inc. manufacturing and quality control process allowed sungears with surface finishes of the root fillet radius of the spline that did not conform to the drawing specifications to be released. The surface finish…NTSB DEN00FA085Accident · No injuriesField investigationFinal reportde Havilland DHC-6-300 · Monument Valley, UTThe pilot-in-command's failure to maintain directional control. A factor was wind shear.NTSB ANC99LA064Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Anchorage, AKAn in-flight collision with a bird.NTSB FTW91DRD04Accident · Serious injuriesFinal reportAir Tractor AT 301 · Lake Providence, LAA loss of engine power for undetermined reasons resulting in a forced landing and nose over on landing.NTSB SEA79DYA27Accident · No injuriesClosedAir Tractor AT-301 · Newdale, ID