NTSB investigations: Pratt & Whitney R1340 series, AR
207 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
| 1966 | 1 |
|---|---|
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 3 |
| 1975 | 14 |
| 1976 | 8 |
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 12 |
| 1980 | 9 |
| 1981 | 10 |
| 1982 | 5 |
| 1983 | 2 |
| 1984 | 12 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 3 |
| 1988 | 13 |
| 1989 | 5 |
| 1990 | 8 |
| 1991 | 4 |
| 1992 | 7 |
| 1993 | 7 |
| 1994 | 7 |
| 1995 | 6 |
| 1996 | 3 |
| 1997 | 1 |
| 1998 | 3 |
| 1999 | 2 |
| 2000 | 1 |
| 2002 | 1 |
| 2004 | 2 |
| 2005 | 4 |
| 2006 | 1 |
| 2007 | 4 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 4 |
| 2011 | 4 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2019 | 1 |
| 2023 | 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.\"eventStateOrRegion\" = 'AR' 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" = 'AR' 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 CEN24LA313Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164 · Dyess, ARThe improper overhaul of the carburetor and the malfunction of left magneto which resulted in a partial loss of engine power.NTSB CEN23LA228Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164 · Saffell, ARThe airplane’s encounter with a dust devil after takeoff, which resulted in a loss of lift, and a subsequent loss of control. Contributing to the accident was the presence of a dust devil in the airplane’s flight path.NTSB GAA19CA271Accident · No injuriesData collectionFinal reportAyres S 2R · Stuttgart, ARThe pilot's exceedance of the airplane's critical angle of attack while maneuvering during an agricultural application flight, which resulted in an aerodynamic stall.NTSB GAA17CA267Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164 · Walnut Ridge, ARThe pilot’s failure to maintain directional control during the go-around with a tailwind.NTSB CEN15LA259Accident · Minor injuriesLimited investigationFinal reportGulfstream-Schweizer A/C Gulfstream AM G 164B · Delaplaine, ARThe pilot’s failure to establish a proper airspeed and angle-of attack during takeoff in elevated density altitude and light tailwind conditions, which resulted in an aerodynamic stall.NTSB CEN14LA301Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Lake City, ARThe partial loss of engine power for reasons that could not be determined based on the available evidence.NTSB CEN13LA504Accident · No injuriesLimited investigationFinal reportGulfstream-Schweizer A/C Gulfstream AM G-164B · Walnut Ridge, ARThe pilot's failure to properly set the engine power for takeoff, which resulted in the airplane subsequently settling into terrain.NTSB CEN11LA610Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Monette, ARThe fracture of the throttle cable in tensile overstress because of wear damage, which resulted in the partial loss of engine power.NTSB CEN11LA484Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Cash, ARA loss of engine power for undetermined reasons.NTSB CEN11CA174Accident · No injuriesData collectionFinal reportGulfstream-Schweizer A/C Gulfstream AM G-164B · Walnut Ridge, ARThe pilot's failure to maintain directional control while landing with a left quartering tailwind and wind gusts.NTSB CEN11LA335Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Bono, ARA loss of engine power for undetermined reasons.NTSB CEN11CA006Accident · No injuriesData collectionFinal reportRockwell International S-2R · Texarkana, ARThe loss of engine power due to cracked engine cylinder.NTSB CEN10LA555Accident · Serious injuriesLimited investigationFinal reportAero Commander S2R · Pocahontas, ARThe pilot's failure to abort the takeoff in a timely manner. Contributing to the accident was the weight of the airplane and the high ambient temperature.NTSB CEN10CA582Accident · No injuriesData collectionFinal reportAir Tractor AT-301 · Atkins, ARA partial loss of engine power during low-altitude flight for undetermined reasons.NTSB CEN10LA236Accident · 1 fatalLimited investigationFinal reportAero Commander S2R · DeWitt, ARThe pilot did not maintain clearance from terrain for undetermined reasons.NTSB CEN09LA239Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Corning, ARA loss of engine power due to the failure of the number one engine cylinder for undetermined reasons.NTSB DEN08CA089Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164C · De Witt, ARThe pilot's improper decision to attempt to close the canopy in flight, and his diverted attention resulting in the airplane impacting the terrain. Contributing to the accident was the excessively worn canopy latch.NTSB CHI07CA230Accident · Minor injuriesData collectionFinal reportGulfstream-Schweizer Gulfstream AM G-164B · Walnut Ridge, ARThe pilot's improper decision to takeoff with a tailwind which resulted in a collision with terrain immediately after liftoff. Factors contributing to the accident were the tailwind and the levee.NTSB CHI07CA206Accident · No injuriesData collectionFinal reportGrumman G-164B · Alicia, ARA loss of engine power for undetermined reasons. Factors associated with the accident were the low altitude at which the loss of power occurred and the flooded rice field in which the airplane was landed.NTSB CHI07CA163Accident · Minor injuriesData collectionFinal reportSchweizer G-164B · Walnut Ridge, ARThe pilot's failure to maintain directional control of the airplane upon landing, which resulted in the airplane impacting a rice levee. The rice levee and the tailwind condition were contributing factors to the accident.NTSB CHI07CA144Accident · No injuriesData collectionFinal reportGulfstream-Schweizer Gulfstream AM G-164B · Walnut Ridge, ARA non-mechanical loss of engine power during the takeoff roll due to fuel contamination. An additional cause was the pilot's inadequate preflight inspection. A factor in the accident was the soft ground.NTSB DFW06LA130Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · DeWitt, ARThe failure by both pilots to maintain adequate visual lookout and the Grumman G-164A pilot's impairment caused by the recent use of marijuana.NTSB DFW05CA177Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164C · Gillett, ARThe loss of engine power resulting from a disconnected discharge pressure line at the fuel control unit. A contributing factor was the lack of suitable terrain for the forced landing.NTSB DFW05CA166Accident · No injuriesData collectionFinal reportRockwell International S-2R · Watson, ARThe loss of engine power for undetermined reasons and the pilot's failure to maintain adequate airspeed which resulted in a stall.NTSB DFW05CA095Accident · No injuriesData collectionFinal reportAyres S-2R · Marvell, ARThe pilot's failure to maintain directional control while landing. A contributing factor was gusty winds.NTSB DFW05CA094Accident · No injuriesData collectionFinal reportGrumman G-164A · Tuckerman, ARThe loss of engine power as result of the failure of the number nine cylinder.NTSB FTW04CA184Accident · No injuriesData collectionFinal reportGrumman G-164C · Tiller, ARThe pilot's inability to maintain control of the airplane while landing due to a brake system failure.NTSB FTW04LA150Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Cotton Plant, ARThe loss of engine power due to fuel exhaustion. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW02LA111Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Wynne, ARThe inadequate supervision by the flight instructor of the pilot who was receiving instruction resulting in the excessive application of the brakes during the landing roll resulting in a nose over. A factor was the gusty crosswind conditions.NTSB FTW00LA097Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Gillett, ARThe cracked #8 cylinder resulting in failure of the cylinder. A factor was the plowed/furrowed terrain.NTSB FTW99LA225Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Dermott, ARThe loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.NTSB FTW99LA220Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Humphrey, ARFuel exhaustion as a result of the pilot's failure to refuel the airplane.NTSB FTW98FA272Accident · 1 fatalField investigationFinal reportAyres S2R-R1340 · Humphrey, ARThe pilot's visual lookout was inadequate for undetermined reasons.NTSB FTW98LA259Accident · No injuriesLimited investigationFinal reportAyres S2R · Watson, ARThe partial loss of engine power due to the disconnection of the propeller governor control as a result of the stripped threads on the propeller governor control push-pull rod. A factor was the lack of suitable terrain for the forced landing.NTSB FTW98LA252Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Coy, ARfailure of the left main tire, which resulted in the pilot's inability to maintain directional control of the airplane during the landing roll.NTSB FTW97LA136Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · Swifton, ARthe pilot's improper in-flight planning/decision and failure to maintain positive control of the airplane, while performing an aerobatic maneuver.NTSB FTW96LA251Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Cash, ARThe partial loss of engine power due to fuel contamination. A factor was the lack of suitable terrain available for the forced landing.NTSB FTW96LA236Accident · Minor injuriesLimited investigationFinal reportRockwell S-2R · Dumas, ARFailure of all personnel concerned to identify the unsafe/hazardous condition, which resulted from a visual restriction, due to trees near the intersection of the road and runway.NTSB FTW96LA135Accident · Minor injuriesLimited investigationFinal reportRockwell S-2R · Winchester, ARFailure of the engine master rod. A factor relating to the accident was: the lack of suitable terrain for a forced landing, due to the proximity of a power line and trees.NTSB FTW96LA007Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Hamburg, ARLoss of engine power due to a cylinder failure. A factor relating to the accident was: the lack of suitable terrain for the forced landing.NTSB FTW95LA301Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Cash, AREngine power loss due to partial failure of one magneto combined with total failure of the other magneto. A factor was the lack of suitable terrain for a forced landing.NTSB FTW95LA283Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Widener, ARLoss of engine power for an undetermined reason. The proximity of power lines (obstruction) was a related factor.NTSB FTW95LA282Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Newport, ARA disconnected throttle push pull rod, due to inadequate maintenance. A factor relating to the accident was: the lack of suitable terrain for the forced landing.NTSB FTW95LA213Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Caldwell, ARThe loss of power due to a crack in the #4 cylinder. Factors were the lack of suitable terrain for the forced landing and proper touchdown point not possible.NTSB FTW95LA145Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Gillett, ARThe engine main rod bearing seized to the crankshaft due to worn master rod metal pieces blocking the oil passages. A factor was an engine overhaul was not performed by company maintenance personnel.NTSB FTW94LA306Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Mcgehee, ARThe loss of engine power due to undetermined reasons. A factor was the unsuitable terrain.NTSB FTW94LA256Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Mcgehee, ARTotal loss of engine power as the engine seized due to a blower bearing failure. A factor was the lack of suitable terrain for the forced landing.NTSB FTW94LA238Accident · Serious injuriesLimited investigationFinal reportRockwell S-2R · Winchester, ARThe loss of power due to the number one cylinder head cracking. A factor was the lack of suitable terrain for the forced landing.NTSB FTW94LA211Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Dumas, ARThe pilot's failure to establish the proper airspeed before beginning a turn after takeoff.NTSB FTW94LA174Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Stuttgart, ARWas the pilots failure to maintain terrain clearance.