NTSB investigations: Pratt & Whitney R1340 series, CA
279 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 | 6 |
|---|---|
| 1965 | 4 |
| 1966 | 5 |
| 1967 | 7 |
| 1968 | 1 |
| 1969 | 2 |
| 1971 | 3 |
| 1972 | 4 |
| 1973 | 3 |
| 1974 | 6 |
| 1975 | 4 |
| 1976 | 11 |
| 1977 | 9 |
| 1978 | 16 |
| 1979 | 9 |
| 1980 | 11 |
| 1981 | 15 |
| 1982 | 5 |
| 1983 | 8 |
| 1984 | 4 |
| 1985 | 2 |
| 1986 | 3 |
| 1987 | 6 |
| 1988 | 6 |
| 1989 | 7 |
| 1990 | 5 |
| 1991 | 4 |
| 1992 | 5 |
| 1993 | 8 |
| 1994 | 7 |
| 1995 | 6 |
| 1996 | 3 |
| 1997 | 3 |
| 1998 | 6 |
| 1999 | 3 |
| 2000 | 5 |
| 2001 | 1 |
| 2002 | 5 |
| 2003 | 2 |
| 2004 | 5 |
| 2005 | 1 |
| 2006 | 3 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 5 |
| 2011 | 5 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 2 |
| 2024 | 4 |
| 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\" = '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 ('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" = '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 ('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 WPR25LA158Accident · Minor injuriesClass 4 · LimitedFinal reportSchweizer G-164B · Butte City, CAThe pilot’s use of engine beta prior to ensuring the tailwheel was on the ground during landing roll.NTSB WPR24LA282Accident · Serious injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Durham, CAThe pilot’s failure to maintain clearance from powerlines, which resulted in a wire strike.NTSB WPR24LA214Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Pleasant Grove, CAThe pilot’s delayed recognition of the extent of the airplane’s increased takeoff roll. Contributing to the accident was the pilot’s lack of experience operating the airplane at a high gross weight.NTSB WPR24LA167Accident · Minor injuriesClass 4 · LimitedFinal reportCanadian Car & Foundry Harvard MK IV · Modesto, CAThe pilot’s improper fuel tank selection, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was a malfunctioning fuel selector at low fuel levels.NTSB ANC24FA038Accident · 1 fatalClass 3 · FieldFinal reportSchweizer G-164B · Richvale, CAThe pilot’s failure to maintain clearance from a trailer located on the edge of the runway during takeoff. Contributing to the accident was the location of the trailer on the side of the runway.NTSB WPR23LA305Accident · 1 fatalClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Davis, CAAn inflight loss of control during a low altitude operation for undetermined reasons.NTSB WPR23FA122Accident · 1 fatalClass 3 · FieldFinal reportRockwell International S-2R · Willows, CAThe pilot’s failure to maintain clearance from powerlines while flying under multiple conductors during a low-altitude aerial application flight, which resulted in propeller contact with a powerline and a subsequent loss of control.NTSB WPR22FA026Accident · 1 fatalClass 3 · FieldFinal reportAyres S-2R · Shafter, CAThe pilot’s decision to depart into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of airplane control.NTSB WPR21LA299Accident · No injuriesClass 3 · LimitedFinal reportSchweizer G-164B · Tracy, CAA loss of thrust during a low-level agricultural application flight, which resulted in a descent and impact with terrain. The reason for the loss of thrust could not be determined based on available information.NTSB WPR21LA200Accident · Serious injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164C · Glenn, CAThe pilot’s fuel mismanagement, which resulted in fuel exhaustion, a total loss of engine power, and an off-airport hard landing.NTSB WPR20LA175Accident · Minor injuriesClass 3 · LimitedFinal reportGrumman G164 · Lincoln, CAThe pilot’s loss of directional control on takeoff for undetermined reasons.NTSB WPR20CA159Accident · No injuriesClass 4 · Data collectionFinal reportGrumman G164 · Maxwell, CAThe pilot's delayed decision to abort the takeoff when the airplane was not attaining sufficient airspeed for takeoff and subsequently departed the end of the runway and collided with terrain. Contributing to the accident was the pilot's inadequate preflight…NTSB GAA19CA493Accident · No injuriesData collectionFinal reportNorth American AT 6D · Chino, CAThe pilot's improper landing flare, which resulted in a bounced landing, and his subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall.NTSB WPR19FA145Accident · 2 fatalClass 3 · FieldFinal reportGrumman G164 · Pleasant Grove, CAThe failure of both pilots to see and avoid the other airplane, which resulted in a midair collision.NTSB WPR19LA137Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164 · Sutter, CAA loss of engine power due to the in-flight separation of the fuel control unit interconnect rod for reasons that could not be determined due to lack of available evidence.NTSB GAA19CA207Accident · No injuriesData collectionFinal reportNorth American SNJ · Chino, CAThe other pilot's failure to maintain clearance from a stopped airplane while taxiing.NTSB WPR19LA014Accident · No injuriesClass 3 · LimitedFinal reportNorth American SNJ · Agoura Hills, CAThe failure of the No. 5 piston rod end due to fatigue, which resulted in a total loss of engine power.NTSB WPR18LA189Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164B · Colusa, CATotal loss of engine power for reasons that could not be determined based on the available information.NTSB WPR18LA128Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G 164C · Maxwell, CAA total loss of engine power due to an uncommanded closing of the fuel shutoff valve, which terminated fuel to the engine. The reason for the fuel shutoff valve’s closure could not be determined based on the available information.NTSB WPR18LA015Accident · No injuriesLimited investigationFinal reportSchweizer G 164B · Tracy, CAThe pilot's failure to maintain directional control of the airplane during the landing roll.NTSB WPR17LA174Accident · No injuriesLimited investigationFinal reportRockwell International S 2R · Brawley, CAThe partial loss of engine power due to the overstress separation of three supercharger drive gear teeth.NTSB GAA17CA321Accident · No injuriesData collectionFinal reportAg-Cat G 164 · Tulelake, CAThe pilot’s improper decision to perform a low altitude fly-by over ground equipment, which resulted in the airplane striking the equipment.NTSB GAA17CA305Accident · Serious injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164 · Maxwell, CAThe pilot's failure to visually check the fuel quantity during the preflight inspection and ensure that sufficient fuel was onboard for the flight, which resulted in a total loss of engine power due to fuel exhaustion.NTSB GAA17CA242Accident · No injuriesData collectionFinal reportNorth American SNJ · Van Nuys, CAThe pilot’s failure to maintain directional control of the airplane during the landing roll with a quartering tailwind.NTSB GAA16CA464Accident · No injuriesData collectionFinal reportNorth American SNJ · Perris, CAThe pilot's inability to compensate for a dust devil during an aborted landing, which resulted in the left wing contacting the ground, a runway excursion, and the airplane coming to rest in a nose-down attitude.NTSB WPR16LA137Accident · No injuriesLimited investigationFinal reportRockwell International S 2R · Brawley, CAThe airplane’s inability to climb and subsequent impact with terrain for reasons that could not be determined based on the available information.NTSB WPR15LA194Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Five Points, CAMaintenance personnel’s improper reassembly of the engine during overhaul, which led to the failure of the supercharger-blower due to a lack of lubrication and the subsequent total loss of engine power during takeoff.NTSB GAA15CA113Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Bakersfield, CAThe pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion, and a collision with terrain.NTSB WPR15LA160Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Maxwell, CAThe pilot’s improper preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.NTSB WPR14LA322Accident · 1 fatalLimited investigationFinal reportSchweizer G 164B · Tulelake, CAThe pilot's failure to maintain clearance from power lines while maneuvering during low-altitude operations.NTSB WPR14LA201Accident · No injuriesLimited investigationFinal reportSchweizer G 164B · Biggs, CAThe assembler’s improper fabrication of a fuel line (hose) and the subsequent failure to verify that it was not occluded, which resulted in fuel starvation and a total loss of engine power during takeoff.NTSB WPR13LA223Accident · 1 fatalLimited investigationFinal reportSchweizer G-164B · Biggs, CAThe pilot’s failure to adequately monitor the runway environment during taxi, which resulted in an on-ground collision.NTSB WPR12CA403Accident · Minor injuriesData collectionFinal reportAyres S2R-R1340 · Brawley, CAThe pilot's decision to attempt to takeoff in high temperatures with a tailwind. Contributing to the accident was the sun glare.NTSB WPR12LA233Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Wilton, CAThe failure of the hopper gate mechanism and subsequent sulfur fire during a low-level maneuver.NTSB WPR11LA320Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Yuba City, CAHigh-cycle fatigue on the 1st-stage compressor blade retaining ring, which resulted in the ring’s fracture and a subsequent loss of engine power.NTSB WPR11LA279Accident · Serious injuriesLimited investigationFinal reportRockwell International S-2R · Brawley, CAThe partial loss of engine power shortly after takeoff, which likely resulted from the failure of the piston connecting rod in cylinder number 3 due to hydraulic lock in that cylinder.NTSB WPR11LA273Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Marysville, CAThe separation of the right main landing gear during takeoff, due to fatigue.NTSB WPR11CA198Accident · No injuriesData collectionFinal reportGrumman G-164 · Princeton, CAThe pilot’s failure to maintain adequate airspeed while maneuvering, resulting in an aerodynamic stall and collision with terrain.NTSB WPR11CA128Accident · No injuriesData collectionFinal reportSchweizer G-164B · Buttonwillow, CAThe pilot's failure to maintain clearance from an irrigation vent pipe.NTSB WPR10LA396Accident · No injuriesLimited investigationFinal reportGrumman G164 · Tracy, CAA total loss of engine power while maneuvering due to an internal catastrophic failure to the master rod and piston connecting rod links.NTSB WPR10LA253Accident · Serious injuriesLimited investigationFinal reportSchweizer G-164B · Robbins, CAThe failure of the wheel hub flange, which allowed the over size tire to expand and impinge on the brake disc and caliper, which resulted in a loss of control during the landing.NTSB WPR10LA214Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Madera, CAA loss of engine power for undetermined reasons.NTSB WPR10FA162Accident · 2 fatalField investigationFinal reportNorth American AT6 · Bakersfield, CAThe pilots did not maintain clearance from terrain for undetermined reasons.NTSB WPR10LA125Accident · No injuriesLimited investigationFinal reportSchweizer G164B · Byron, CAA loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat.NTSB WPR09LA374Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Firebaugh, CAA total loss of engine power due to fuel exhaustion that was due to the failure of company ground personnel to refuel the airplane. Contributing to the accident was unsuitable terrain for a forced landing.NTSB WPR09LA228Accident · Serious injuriesLimited investigationFinal reportAyres S2R-T34 · Marysville, CAThe failure of both pilots to see and avoid the other airplane while making their final approach for landing.NTSB WPR09CA114Accident · No injuriesData collectionFinal reportSchweizer G-164B · Buttonwillow, CAA loss of engine power due to the number four cylinder base nuts becoming loose, allowing the cylinder to detach from the engine case. Contributing to the accident was the pilot's impaired visibility due to smoke during the forced landing.NTSB SEA08LA133Accident · Minor injuriesLimited investigationFinal reportThrush S-2R · Holtville, CAThe loss of oil pressure for undetermined reasons.NTSB LAX08LA137Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Butte City, CAA total loss of engine power during takeoff due to fuel exhaustion as a result of the pilot's failure to verify the fuel quantity prior to flight.NTSB LAX08CA034Accident · Serious injuriesData collectionFinal reportAir Tractor AT-401 · Soledad, CAThe pilot's failure to maintain an adequate clearance from mountainous terrain while maneuvering during an aerial application mission. Contributing to the accident was the pilot's diverted attention inside the cockpit.