NTSB investigations: Pratt & Whitney PT6A series, 2011
23 cases on aircraft whose registry engine model is Pratt & Whitney PT6A 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
| 1964 | 1 |
|---|---|
| 1969 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 3 |
| 1981 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 5 |
| 1988 | 1 |
| 1989 | 2 |
| 1990 | 3 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 2 |
| 1994 | 9 |
| 1995 | 10 |
| 1996 | 10 |
| 1997 | 23 |
| 1998 | 14 |
| 1999 | 16 |
| 2000 | 20 |
| 2001 | 24 |
| 2002 | 28 |
| 2003 | 34 |
| 2004 | 26 |
| 2005 | 25 |
| 2006 | 21 |
| 2007 | 32 |
| 2008 | 22 |
| 2009 | 19 |
| 2010 | 18 |
| 2011 | 23 |
| 2012 | 21 |
| 2013 | 20 |
| 2014 | 20 |
| 2015 | 15 |
| 2016 | 25 |
| 2017 | 19 |
| 2018 | 15 |
| 2019 | 17 |
| 2020 | 19 |
| 2021 | 9 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 18 |
| 2025 | 11 |
| 2026 | 8 |
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 year(c.\"eventDate\") = 2011
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034'))
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 year(c."eventDate") = 2011
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034'))
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 WPR12CA069Accident · Minor injuriesData collectionFinal reportCessna 208 · Mesquite, NVThe pilot's improper preflight planning, which resulted in a loss of engine power due to fuel exhaustion.NTSB ENG12IA013Incident · No injuriesIncident investigationFinal reportBeech 1900D · Denver International Airport, COA failure of the nose landing gear end cap due to fatigue. Contributing to the failure were the ineffective inspection and the unknown effect of grain direction on fatigue life.NTSB ERA12CA003Accident · Serious injuriesData collectionFinal reportAir Tractor AT-502B · Fort Pierce, FLThe pilot's delayed decision to abort the takeoff.NTSB CEN11LA593Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-400 · Monango, NDThe pilot did not maintain adequate separation from a tree during the aerial-application flight.NTSB WPR11LA388Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-602 · Pine Bluffs, WYThe pilot's failure to maintain clearance from power lines during an aerial application flight.NTSB CEN11LA571Accident · No injuriesLimited investigationFinal reportAir Tractor AT-402 · Uvalde, TXThe pilot’s failure to maintain airspeed while maneuvering to avoid power lines during a precautionary landing, which resulted an aerodynamic stall. Contributing to the accident was the fluctuating engine power for undetermined reasons and the pilot's…NTSB WPR11LA278Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Blackfoot, IDA partial loss of engine power during takeoff for undetermined reasons.NTSB CEN11LA404Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T34 · Athleimer, ARFailure of the first stage planetary gearset in the propeller reduction gearbox, which resulted in catastrophic engine failure. Contributing to the failure was the misrepresentation of the gearset being zero-timed by the company that sold the gearset to the…NTSB WPR11CA252Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Odessa, WAThe pilot's failure to maintain clearance from the other aircraft.NTSB WPR11LA245Accident · No injuriesLimited investigationFinal reportPiper PA-46-310P · Lake Havasu, AZThe failure of the low pressure switch in the normal landing gear system, which prevented normal operation of that system, and the misrigging of the emergency extension gear release valve, which prevented the system from being depressurized to allow for the…NTSB ANC11LA048Accident · No injuriesLimited investigationFinal reportDehavilland DHC-3T · Bettles Field, AKThe pilot's selection of unsuitable terrain for the landing, which resulted in a loss of directional control.NTSB ERA11LA298Accident · No injuriesLimited investigationFinal reportThrush S2R-T660 · Greenwood, MSA partial loss of engine power during low-altitude maneuvering for undetermined reasons.NTSB WPR11CA222Accident · No injuriesData collectionFinal reportThrush S2R-T34 · Pleasant Grove, CAThe pilot's failure to maintain directional control during the landing.NTSB WPR11FA221Accident · 1 fatalField investigationFinal reportAir Tractor AT-802A · Miles City, MTThe pilot's continued visual flight rules flight into deteriorating weather conditions in an airplane not equipped for instrument flight, which resulted in a collision with terrain.NTSB CEN11LA323Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-402A · Arriba, COThe pilot’s controlled flight into terrain for undetermined reasons.NTSB WPR11LA218Accident · No injuriesLimited investigationFinal reportPiper PA46-500TP · Rock Springs, WYThe overstress fracture of the right aileron midspan hinge bracket due to modal vibrations created by a deflated right main landing gear tire during the takeoff roll.NTSB CEN11CA309Accident · No injuriesData collectionFinal reportCessna 208B · El Paso, TXThe pilot's loss of control as result of the gusting wind.NTSB CEN11LA296Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-802A · New Madrid, MOThe failure of both pilots to see and avoid the other airplane, which resulted in a midair collision.NTSB CEN11CA287Accident · Minor injuriesData collectionFinal reportAir Tractor AT503 · Telephone, TXThe pilot's failure to maintain adequate airspeed which resulted in an aerodynamic stall.NTSB CEN11CA224Accident · Minor injuriesData collectionFinal reportAyres S2R-T34 · Swan Lake, ARAn in-flight collision with power lines following an encounter with a wind gust.NTSB WPR11FA158Accident · No injuriesField investigationFinal reportCessna 208B · Bakersfield, CAThe malfunction of a master brake cylinder, which resulted in a loss of braking action and subsequent loss of directional control and collision with three vehicles during taxi. Contributing to the accident was the inappropriate design and manufacture of the…NTSB ERA11FA183Accident · 2 fatalField investigationFinal reportDehavilland DHC-6-100 · Hampton, GAThe pilot did not maintain airspeed while maneuvering, which resulted in an aerodynamic stall.NTSB ANC11LA009Accident · No injuriesLimited investigationFinal reportCessna 208B · Kipnuk, AKThe pilot’s decision to land long on the icy snow-covered runway, resulting in a runway excursion and collision with terrain.