# NTSB investigations: Pratt & Whitney Canada PT6A-60A, CA NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB WPR17LA042](https://openairdocs.org/ntsb/WPR17LA042.md): Air Tractor AT 602 · Willows, CA · Accident · No injuries · Limited investigation · Final report · Dec 27, 2016 · N602L · Substantial damage > The decision of the maintenance facility mechanic to conduct maintenance without reference to the applicable manufacturer’s guidance, which resulted in the improper reassembly and subsequent failure of the engine compressor bleed valve, which in turn… - [NTSB WPR14CA391](https://openairdocs.org/ntsb/WPR14CA391.md): Piper PA 31T - II · Oakland, CA · Accident · No injuries · Data collection · Final report · Sep 24, 2014 · N774MF · Substantial damage > The pilot's failure to extend the landing gear which resulted in a gear-up landing. Contributing to the accident was the pilot's failure to use the checklist and reported stress. - [NTSB WPR14LA102](https://openairdocs.org/ntsb/WPR14LA102.md): Beech C90 · Columbia, CA · Accident · No injuries · Limited investigation · Final report · Jan 27, 2014 · N350WA · Substantial damage > The pilot’s unstabilized night visual approach, which resulted in a hard landing and the collapse of all three landing gear. - [NTSB WPR09LA228](https://openairdocs.org/ntsb/WPR09LA228.md): Ayres S2R-T34 · Marysville, CA · Accident · Serious injuries · Limited investigation · Final report · May 6, 2009 · N40208 · 2 aircraft · Substantial damage > The failure of both pilots to see and avoid the other airplane while making their final approach for landing. - [NTSB LAX08CA151](https://openairdocs.org/ntsb/LAX08CA151.md): Beech B200 · Travis AFB, CA · Accident · No injuries · Data collection · Final report · May 16, 2008 · N241PH · Substantial damage > The pilot inadvertently raised the landing gear during landing roll. - [NTSB LAX05CA250](https://openairdocs.org/ntsb/LAX05CA250.md): Ayres S2R-134 · Kerman, CA · Accident · No injuries · Data collection · Final report · Jul 30, 2005 · N4003Z · Substantial damage > the pilot's failure to obtain an adequate airspeed during an attempted takeoff. - [NTSB LAX05LA100](https://openairdocs.org/ntsb/LAX05LA100.md): Ayres S2R · Firebaugh, CA · Accident · 1 fatal · Limited investigation · Final report · Feb 18, 2005 · N4009M · Substantial damage > the loss of engine power during takeoff climb resulting from the fatigue failure of one of the compressor turbine blades; the cause of the fatigue failure could not be definitively determined. - [NTSB LAX02LA226](https://openairdocs.org/ntsb/LAX02LA226.md): Ayres S2R-T34 · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · Jul 13, 2002 · N4020Y · Substantial damage > The overload fracture and separation of the left main gear strut assembly due the left landing gear's encounter with a chuck hole in the private airstrip's asphalt pavement. A factor in the accident was the inadequate maintenance of the airstrip's surface. - [NTSB LAX02FA101](https://openairdocs.org/ntsb/LAX02FA101.md): Cessna 425 · San Jose, CA · Accident · 3 fatal · Field investigation · Final report · Mar 6, 2002 · N444JV · Destroyed > the pilot's loss of control and resulting exceedence of the design stress limits of the aircraft, which led to an in-flight structural failure. The pilot's loss of control was due in part to the loss of primary airspeed reference resulting from pitot tube… - [NTSB LAX93LA306](https://openairdocs.org/ntsb/LAX93LA306.md): Ayres S-2R-T34 · Tulare, CA · Accident · No injuries · Limited investigation · Final report · Jul 29, 1993 · N4016B · Substantial damage > the failure of the main gear inner lower tube assembly due to fatigue. - [NTSB LAX92LA300](https://openairdocs.org/ntsb/LAX92LA300.md): Ayres S2R-T34 · Five Points, CA · Accident · No injuries · Limited investigation · Final report · Jul 16, 1992 · N3105V · Substantial damage > The failure of airport personnel to perform the necessary runway maintenance. Contributing to this accident was the dark night and high vegetation. - [NTSB LAX88DVA14](https://openairdocs.org/ntsb/LAX88DVA14.md): Ayres S2R-T34 · Five Points, CA · Accident · Minor injuries · Final report · Sep 2, 1988 · N4009M · Substantial damage > Plt was engaged in aerial application and had been overflying power lines. On last pass, plt elected to fly beneath power lines, struck bracing wire between poles with vertical fin, disabling elevator. The acft crashed nose down in a field in an uncontrolled… - [NTSB LAX88DVA10](https://openairdocs.org/ntsb/LAX88DVA10.md): Ayres S2R-T34 · Huron, CA · Accident · No injuries · Final report · Aug 14, 1988 · N40071 · Substantial damage > During an aerial application flight at night, the airplane's vertical stabilizer collided with a transmission wire. Subsequently, the vertical stabilizer & rudder were dislocated & directional control was lost. Realizing he had lost directional control, the… - [NTSB LAX81DVA63](https://openairdocs.org/ntsb/LAX81DVA63.md): Ayres S2R · Huron, CA · Accident · No injuries · Closed · Sep 17, 1981 · N40110 · Substantial damage - [NTSB LAX69A0026](https://openairdocs.org/ntsb/LAX69A0026.md): Dehavilland DHC-6 · Avalon, CA · Accident · No injuries · Closed · Nov 12, 1968 · N64150 · Substantial damage ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52043', '51999')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=52043&state=CA --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.