NTSB investigations: Pratt & Whitney PT6A series, CA
42 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
| 1987 | 1 |
|---|---|
| 1993 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 2000 | 3 |
| 2004 | 1 |
| 2007 | 3 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 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.\"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 ('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 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 ('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 WPR24LA186Accident · No injuriesClass 4 · LimitedFinal reportGrumman/Schweizer G-164D · Richvale, CAThe pilot’s decision to take off with a tailwind and their failure to maintain clearance from terrain.NTSB WPR24LA070Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-502A · Stratford, CAA partial loss of engine power due to the malfunction of the engine compressor bleed-off valve.NTSB WPR23LA333Accident · No injuriesClass 4 · LimitedFinal reportAyres S2R-T34 · Three Rocks, CAThe airplane’s exceedance of the critical angle of attack, resulting in an aerodynamic stall and impact with terrain.NTSB WPR23LA217Accident · Minor injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Bakersfield, CAThe pilot’s improper use of flaps during the takeoff sequence which resulted in a runway overrun and collision with trees.NTSB WPR22FA197Accident · 1 fatalClass 3 · FieldFinal reportCessna 208B · Oceanside, CAThe right-seated pilot’s failure to correct the left-seated pilot’s mismanagement of the engine thrust, which resulted in undesired speed and thrust oscillations during the final approach and a subsequent descent into terrain.NTSB WPR21LA368Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-602 · Sacramento, CAThe pilot's inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.NTSB WPR20CA312Accident · No injuriesClass 4 · Data collectionFinal reportBeechcraft C90A · Fortuna, CAA collision with a deer while landing at night.NTSB WPR20CA046Accident · No injuriesData collectionFinal reportBeech 350 · Visalia, CAThe single-engine pilot's failure to yield to traffic established on the taxiway, which resulted in a ground collision.NTSB WPR19IA030Incident · Minor injuriesClass 3 · IncidentFinal reportCessna 208 · Bakersfield, CAThe pilot's loss of consciousness while taxiing due to an accumulation of toxic levels of carbon dioxide gas inside the airplane as a result of dry ice sublimation. Also causal was the pilot's decision to fly the airplane in an unventilated configuration, the…NTSB GAA18CA528Accident · No injuriesData collectionFinal reportBeech 200 · Burbank, CAThe flight instructor's and pilot receiving instruction's failure to maintain clearance from a tree while taxiing.NTSB GAA18CA309Accident · No injuriesData collectionFinal reportAir Tractor AT 402 · Nicolaus, CAThe pilot’s failure to maintain adequate clearance from a power transmission wire.NTSB GAA18CA137Accident · No injuriesData collectionFinal reportBeech C90 · Montague, CAThe failure of pilot to extend the landing gear during landing.NTSB GAA17CA303Accident · No injuriesData collectionFinal reportDehavilland DHC 6 · Perris, CAThe prospective pilot’s improper landing flare and the pilot’s delayed remedial action to initiate a go-around, which resulted in a runway excursion.NTSB WPR16FA153Accident · 4 fatalField investigationFinal reportPiper PA-31T · McKinleyville, CAAn inflight fire in the floor area near the main bus tie circuit breaker panel that resulted from chafing between an electrical wire and a hydraulic line and/or airplane structure.NTSB WPR16LA150Accident · No injuriesLimited investigationFinal reportBeech 65 A90 · Byron, CAThe pilot’s failure to maintain an adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and subsequent spin. Also causal to the accident was the pilot’s failure to follow prescribed spin…NTSB WPR16FA148Accident · 1 fatalField investigationFinal reportAir Tractor AT 502B · Zamora, CAThe failure of both pilots to maintain an adequate visual lookout, which resulted in a midair collision. Also causal was the other pilot's use of two sedating antihistamines and two impairing medication and the effect of sun glare on his visual lookout, which…NTSB GAA16CA303Accident · No injuriesData collectionFinal reportAir Tractor AT 502 · Nicolaus, CAThe pilot's insufficient clearance from a power line during aerial application operations, which resulted in a power line strike, a forced landing on unsuitable terrain, loss of directional control, and collision with terrain.NTSB WPR16LA107Accident · Minor injuriesLimited investigationFinal reportCessna 208B · Acampo, CAA total loss of engine power due to a fatigue fracture of the fuel pressure line that connected the fuel control unit and the fuel flow transducer due to vibration as the result of a fatigue fracture of an associated support clamp. Contributing to the…NTSB WPR15CA110Accident · No injuriesData collectionFinal reportRaytheon B300 · Mammoth Lakes, CAThe airplane encountered extreme turbulence during descent.NTSB WPR14LA267Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT 502B · Sacramento, CAThe total loss of engine power for reasons that could not be determined because the airplane was not available for postaccident examination.NTSB WPR14LA245Accident · No injuriesLimited investigationFinal reportAir Tractor AT 502B · Princeton, CAThe partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB WPR13LA233Accident · Minor injuriesLimited investigationFinal reportSchweizer G-164D · Butte City, CAThe pilot's failure to maintain airplane control after an encounter with wake turbulence while maneuvering at low altitude. Contributing to the accident was the pilot’s fatigue due to extended hours of wakefulness and high workload.NTSB WPR12LA433Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Firebaugh, CAThe pilot’s decision to continue the takeoff after the engine stopped producing its full-rated torque while operating in high-density altitude conditions and his subsequent failure to maintain clearance from the power transmission wires.NTSB WPR12LA220Accident · 1 fatalLimited investigationFinal reportGrumman G 164D · Nicolaus, CAThe pilot’s failure to maintain airplane control during a low-altitude maneuver.NTSB WPR11CA222Accident · No injuriesData collectionFinal reportThrush S2R-T34 · Pleasant Grove, CAThe pilot's failure to maintain directional control during the landing.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 WPR10LA260Accident · No injuriesLimited investigationFinal reportSocata TBM · Lost Hills, CAA loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot's failure to obtain the proper…NTSB WPR10LA141Accident · No injuriesLimited investigationFinal reportCessna 208B · Sacramento, CAAn in-flight collision with a bird while on final approach.NTSB WPR09LA451Accident · No injuriesLimited investigationFinal reportRaytheon B200 · Hayward, CAThe pilot's failure to maintain directional control after takeoff. Contributing to the accident was the pilot's inadequate preflight and failure to follow the airplane manufacturer's checklist to ensure that the rudder trim control and right propeller control…NTSB WPR09CA064Accident · No injuriesData collectionFinal reportAir Tractor AT-502 · Dinuba, CAThe failure of maintenance personnel to properly install the engine's Py line correctly, which resulted in the total loss of engine power and subsequent force landing. Contributing to the accident was the lack of suitable terrain.NTSB LAX07TA277Accident · No injuriesFinal reportAir Tractor AT-802A · Big Bear City, CALoss of engine power while maneuvering due to the failure of the number 1 bearing that was caused by electrical discharge damage to the bearing originating from the starter-generator. Contributing to the accident was the operator's failure to follow the…NTSB SEA07LA242Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Blythe, CAThe pilot's failure to maintain adequate airspeed which resulted in a stall. A contributing factor was the high density altitude.NTSB SEA07LA204Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502A · Chowchilla, CAThe loss of engine power as the result of the fatigue fracture and separation of two compressor turbine blades, which induced a catastrophic failure of the compressor turbine section.NTSB LAX04LA275Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Mendota, CAThe pilot's inadequate preflight/pretakeoff procedure by not lowering the wing flaps, which resulted in an inadvertent stall as the pilot attempted to climb out of ground effect to clear a corn crop at the end of the runway. A factor in the accident was the…NTSB LAX01LA019Accident · Serious injuriesLimited investigationFinal reportBeech 300 · Concord, CAthe pilot's delayed decision to abort the takeoff and his failure to utilize the propeller's reverse pitch function.NTSB LAX00LA271Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Ripley, CAA loss of engine power due to the separation of a connecting rod from the crankshaft.NTSB LAX00GA185Accident · Serious injuriesFinal reportBeech 65-90 · China Lake, CAthe inadvertent early deployment of the test parachute lines and dummy and it's entanglement with the horizontal stabilizer, which resulted from the operator's inadequate test plan substantiation process for shortening the parachute's static line. .NTSB LAX97LA125Accident · No injuriesLimited investigationFinal reportCessna 425 · Fresno, CAfailure of the right brake to function, due to the installation mechanic's failure to completely bleed all air from the lines. A factor in the accident was the pilot's decision to fly the unairworthy aircraft before the engine/propeller installation had been…NTSB LAX96LA328Accident · No injuriesLimited investigationFinal reportCessna 425 · Auburn, CAfailure of the right brake system (master cylinder O-ring seal). Factors relating to the accident were: the narrow runway, and the presence of a ditch adjacent to the runway.NTSB LAX96LA070Accident · No injuriesLimited investigationFinal reportCessna 208B · Sacramento, CAthe pilot was given an erroneous wind velocity due to a malfunctioning wind gauge in the control tower. Factors relating to the accident were: the high/gusty wind conditions, and the pilot's improper evaluation of the actual wind condition.NTSB LAX93LA337Accident · No injuriesLimited investigationFinal reportCessna 208B · Los Angeles, CAThe inattention of the driver of a service truck to yield to aircraft and subsequent collision with the airplane as it crossed the service roadway.NTSB LAX87DVA09Accident · No injuriesFinal reportAyres S2R-T34 · Mendota, CADuring an agricultural application flight, the aircraft struck a pole that was located 30 feet within the field boundary. The pilot stated that due to the dawn light and the way the pole blended in with the field along with a light amount of chemical on the…