NTSB investigations: Pratt & Whitney R1340 series, TX
185 cases on aircraft whose registry engine model is Pratt & Whitney R1340 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 | 2 |
|---|---|
| 1965 | 4 |
| 1966 | 2 |
| 1967 | 3 |
| 1968 | 1 |
| 1969 | 6 |
| 1970 | 4 |
| 1971 | 4 |
| 1972 | 2 |
| 1973 | 6 |
| 1974 | 1 |
| 1975 | 7 |
| 1976 | 5 |
| 1977 | 2 |
| 1978 | 4 |
| 1979 | 5 |
| 1980 | 5 |
| 1981 | 8 |
| 1982 | 7 |
| 1983 | 5 |
| 1984 | 4 |
| 1985 | 3 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 4 |
| 1989 | 4 |
| 1990 | 5 |
| 1991 | 1 |
| 1992 | 4 |
| 1993 | 3 |
| 1994 | 4 |
| 1995 | 3 |
| 1996 | 3 |
| 1997 | 4 |
| 1998 | 2 |
| 1999 | 6 |
| 2000 | 4 |
| 2001 | 5 |
| 2002 | 1 |
| 2003 | 3 |
| 2004 | 6 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 5 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 3 |
| 2014 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 3 |
| 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.\"eventStateOrRegion\" = 'TX' 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 ('52016'))
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" = 'TX' 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 ('52016'))
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 CEN25FA388Accident · 2 fatalClass 3 · FieldPreliminary reportNorth American T-6G · Louise, TXOn September 20, 2025, about 1724 central daylight time, a North American T-6G airplane, N32SZ, was destroyed when it was involved in an accident near Lousie, Texas. The pilot and passenger sustained fatal injuries. The airplane was operated as a Title 14…NTSB CEN23LA063Accident · No injuriesClass 4 · LimitedFinal reportRockwell International S2R-G6 · Mission, TXThe pilot's failure to maintain clearance from an electrical box.NTSB CEN22LA187Accident · No injuriesClass 3 · LimitedFinal reportNorth American AT-6D · Fredericksburg, TXA total loss of engine power due to a failure of the No. 1 cylinder.NTSB CEN22LA101Accident · No injuriesClass 4 · LimitedFinal reportNorth American AT-6C · San Antonio, TXThe pilot’s loss of directional control during landing.NTSB CEN21LA133Accident · No injuriesClass 3 · LimitedFinal reportAero Commander S2R · Alamo, TXThe partial loss of engine power due to water-contaminated fuel.NTSB CEN20CA176Accident · No injuriesClass 4 · Data collectionFinal reportNorth American SNJ · San Antonio, TXThe pilot's loss of directional control while landing a tailwheel airplane in gusty wind conditions.NTSB GAA19CA277Accident · Serious injuriesData collectionFinal reportGrumman G164 · Pearsall, TXThe pilot's failure to maintain clearance from power lines during low-altitude maneuvering.NTSB GAA19CA270Accident · No injuriesData collectionFinal reportGrumman G164 · Lane City, TXThe pilot's failure to maintain clearance from power lines during low-altitude maneuvering.NTSB CEN18FA147Accident · 2 fatalField investigationFinal reportNorth American SNJ 5 · Kingsville, TXThe pilot's failure to maintain airspeed during a steep turn after takeoff, resulting in an exceedance of the airplane's critical angle of attack and a subsequent accelerated stall at an altitude too low for recovery.NTSB CEN17LA151Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Nome, TXAn in-flight fire for reasons that could not be determined based on available information.NTSB CEN14LA287Accident · No injuriesLimited investigationFinal reportAir Tractor AT 301 · Pearsall, TXThe failure of the No. 1 cylinder rod at the link pin. Contributing to the accident was oil starvation to the rod bearing due to the improper flushing of the oil cooler, which allowed metal and other debris in the oil to clog the drain and the led to the…NTSB WPR14CA002Accident · No injuriesData collectionFinal reportAir Tractor AT 401 · Waco, TXThe pilot’s failure to maintain directional control during the takeoff in gusting wind conditions.NTSB CEN13LA519Accident · No injuriesLimited investigationFinal reportGulfstream-Schweizer Gulfstream AM G 164B · Eagle Lake, TXThe failure of one of the engine cylinders, which resulted in the total loss of engine power and subsequent forced landing.NTSB CEN13LA152Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Victoria, TXThe mechanical failure of the engine power section, which resulted in a loss of engine power.NTSB CEN12LA589Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Ralls, TXThe total loss of engine power due to a fatigue failure of the rocker arm journal casting of the rocker arm cap.NTSB CEN11LA556Accident · No injuriesLimited investigationFinal reportGrumman G-164A · El Campo, TXSeparation of the No. 3 cylinder exhaust valve rocker arm, which resulted in a loss of engine power.NTSB CEN11CA330Accident · No injuriesData collectionFinal reportAir Tractor AT-301 · Garwood, TXThe pilot's failure to maintain adequate clearance from transmission wires during a low-level maneuvering flight.NTSB CEN10CA553Accident · Serious injuriesData collectionFinal reportGulfstream-Schweizer A/C Gulfstream AM G-164B · Blessing, TXThe pilot's failure to maintain clearance from wires while maneuvering.NTSB CEN09LA149Accident · No injuriesLimited investigationFinal reportNorth American T-6G · Cypress, TXBoth pilot's failure to see and avoid the other aircraft.NTSB DFW08LA223Accident · No injuriesLimited investigationFinal reportRockwell International S-2R · Uvalde, TXA total loss of engine power due to the improper use of unauthorized replacement parts in the engine and repeated operation of the engine in an over-temperature condition.NTSB DFW08CA192Accident · No injuriesData collectionFinal reportGrumman G-164A · Bovina, TXLoss of engine power for undetermined reasons.NTSB DEN08LA105Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301A · Garwood, TXA loss of engine power due to the total failure of the number 2 cylinder.NTSB DEN08CA091Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164A · East Bernard, TXTwo engine cylinder exhaust valves stuck open for an undetermined reason, resulting in a loss of engine power.NTSB DEN08LA077Accident · Minor injuriesLimited investigationFinal reportGulfstream-Schweizer G-164B · Angleton, TXThe pilot's inadequate visual lookout and his failure to maintain clearance from the tranmission lines. A factor in this accident was the unmarked transmission wires.NTSB DFW07LA148Accident · Serious injuriesLimited investigationFinal reportAir Tractor 301 · Lueders, TXThe pilot's failure to maintain airspeed which resulted in an inadvertent stall and subsequent impact with terrain.NTSB DFW06CA214Accident · No injuriesData collectionFinal reportAir Tractor 301 · Big Spring, TXA loss of engine power due to fuel exhaustion as result of the pilot's failure to refuel the airplane. A contributing factor was the lack of suitable terrain for a forced landing.NTSB DFW06CA152Accident · No injuriesData collectionFinal reportAir Tractor AT-401 · Victoria, TXThe pilot's delay in aborting the takeoff which resulted in an overrun. A contributing factor was the unfavorable wind.NTSB DFW05IA222Incident · No injuriesIncident investigationFinal reportAir Tractor AT-401 · Winnie, TXThe loss of engine power due to the failure of the second-stage turbine wheel as a result of low cycle fatigue.NTSB DFW05LA175Accident · No injuriesLimited investigationFinal reportNorth American T-28B · Abilene, TXThe pilot's failure to maintain clearance while taxiing. Contributing factors were the pilot's diverted attention and the inaccurate frequency listing for ground control.NTSB DFW05CA003Accident · No injuriesData collectionFinal reportAir Tractor AT-301 · Coahoma, TXThe pilot's failure to maintain directional control during landing. A contributing factor was the lack of suitable terrain for landing.NTSB FTW04LA227Accident · No injuriesLimited investigationFinal reportGrumman 164B · East Bernard, TXThe loss of engine power as result of the failure of the number four cylinder. A factor was the lack of suitable terrain for the forced landing.NTSB FTW04LA182Accident · No injuriesLimited investigationFinal reportGulfstream-Schweizer G-164B · Eagle Lake, TXThe loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW04LA164Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Garwood, TXThe separation of the right main landing gear wheel and axle during take-off. Contributing factors were the fatigue of the bolts on the right main landing gear and the rough and uneven terrain.NTSB FTW04LA159Accident · No injuriesLimited investigationFinal reportAyres S-2R · Eagle Lake, TXThe partial collapse of the left main landing gear as a result of a failure of the fuselage structure due to corrosion.NTSB FTW04LA132Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Donna, TXThe pilot's failure to maintain clearance from the high tension power lines.NTSB FTW04LA021Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · San Angelo, TXThe pilot's improper weather evaluation and the wrong runway selection. A contributing factor was the tailwind.NTSB FTW03CA180Accident · No injuriesData collectionFinal reportSchweizer G-164B · Vega, TXThe failure of the left brake for undetermined reasons.NTSB FTW03LA084Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-401 · Alamo, TXThe pilot's failure to maintain airspeed which resulted in a stall. Low altitude flight is a contributing factor.NTSB FTW02LA245Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-401 · Hearne, TXThe pilot's failure to maintain clearance with a pump rig while maneuvering during an aerial application flight. A factor was the object.NTSB FTW02LA020Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Morton, TXThe pilot's loss of control of the airplane during an aerial application maneuver.NTSB FTW01LA209Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Eagle Lake, TXthe partial loss of engine power for an undetermined reason, which resulted in an in flight collision with trees and terrain.NTSB FTW01LA184Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Fabens, TXthe pilot's inadequate preflight resulting in loss of engine power due to fuel exhaustion. A contributing factor was the power line.NTSB FTW01LA156Accident · Minor injuriesLimited investigationFinal reportRockwell International S-2R · Sabinal, TXa loss of engine power due to a crack in the #9 cylinder, which result in the failure of the connecting rod during the aerial application flight. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW01LA119Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Rosharon, TXthe pilot's failure to maintain aircraft control while maneuvering. Factors were the weather conditions and the muddy terrain.NTSB FTW00LA212Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-401 · Panhandle, TXThe pilot's failure to maintain airspeed, which resulted in a stall.NTSB FTW00LA186Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Hondo, TXThe fuel exhaustion due to the pilot's failure to refuel the airplane. A factor was the lack of suitable terrain for the forced landing.NTSB FTW00LA168Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Garwood, TXthe loss of engine power in cruise flight as a result of the failure of the right magneto. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW00LA159Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Garwood, TXThe failure of the supercharger seal resulting in the loss of engine power. A factor was the lack of suitable terrain for the forced landing.NTSB FTW00LA012Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Olton, TXThe inflight separation of the propeller blade due to damage from a wire strike. A factor was the lack of suitable terrain for the forced landing.NTSB FTW99LA252Accident · Minor injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Seminole, TXThe pilot's failure to maintain clearance with powerlines. A factor was the pilot's diverted attention to the light bar for the electronic swath guidance system installed in the airplane.