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, newest first
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 FTW94LA164Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Monticello, ARThe loss of engine power due to the number 2 cylinder cracking. A factor was the lack of suitable terrain for the forced landing.NTSB FTW94LA131Accident · Minor injuriesLimited investigationFinal reportGulfstream G-164B · Delaplaine, ARThe loss of engine power for undetermined reasons. A factor was the low altitude at which the power loss occurred.NTSB FTW93LA230Accident · No injuriesLimited investigationFinal reportAero Commander S2R · England, ARA partial loss of engine power for undetermined reasons.NTSB DEN93LA081Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Dermott, ARPower loss due to the total failure of the engine's master rod. Factors were an improper engine overhaul and the lack of suitable terrain for a forced landing.NTSB FTW93LA180Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Dumas, ARThe pilot's inadequate compensation for wind conditions.NTSB FTW93LA174Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Stuttgart, ARThe pilot's selection of the downwind runway for landing. Factors were the wind conditions and the left brake malfunction for undetermined reasonsNTSB FTW93LA167Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Stuttgart, ARPilot's failure to maintain clearance from the electrical wires.NTSB FTW93LA156Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Trumann, ARPilot's failure to maintain terrain clearance. A factor was the diverted attention of the pilot.NTSB DEN93LA051Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Truman, ARA power loss for undetermined reasons. A factor was: the lack of suitable terrain for the forced landing.NTSB FTW92DPG11Accident · No injuriesFinal reportGrumman G-164B · Fouke, ARThe pilot's selection of unsuitable terrain for takeoff. Factors were the trees and the soft field.NTSB FTW92DPG10Accident · No injuriesFinal reportRockwell S2R-R3S · Minturn, ARThe loss of engine power and the encounter with unsuitable terrain during the forced landing.NTSB FTW92DPG09Accident · Serious injuriesFinal reportAir Tractor AT-301A · Fisher, ARA loss of engine power for undetermined reasons and the failure of the pilot to maintain airspeed above a stall.NTSB FTW92DPG06Accident · No injuriesFinal reportGrumman G-164A · Swifton, ARLoss of engine power. A factor was the lack of suitable terrain for forced landing.NTSB FTW92LA148Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Oil Trough, ARThe pilot's selection of unsuitable terrain for takeoff.NTSB FTW92LA143Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Walnut Ridge, ARThe pilot's failure to maintain adequate terrain clearance. A factor was the loss of power as result of the uncoupling of the engine and the propeller.NTSB FTW92LA118Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Almyra, ARThe pilot's improper judgement of the descent rate and his inadequate pull up at the bottom.NTSB FTW91DPG18Accident · No injuriesFinal reportGrumman G-164A · Dewitt, ARThe pilot's failure to maintain proper glidepath. A factor was the berm at the approach end of the runway.NTSB FTW91DPG14Accident · No injuriesFinal reportGrumman G-164A · Swifton, ARPartial failure of the hopper, chemical fire, and the failure of the landing gear. A factor ws the loss of visual outside reference.NTSB FTW91DPG06Accident · No injuriesFinal reportGrumman G-164A · Gillett, ARThe windshiled becoming obscured by aerial application spray and the resultant limited vision from the cockpit.NTSB FTW91DPG02Accident · No injuriesFinal reportGrumman G-164A · Light, ARThe pilot's selection of the downwind runway for landing. A factor was the tailwind.NTSB FTW90DPG13Accident · No injuriesFinal reportGrumman G-164A · Luxora, ARA partial power loss due to failure of the number five connecting rod. A factor was the soft terrain in which the forced landing was made.NTSB FTW90DPG08Accident · Serious injuriesFinal reportAir Tractor AT-301 · Corning, ARBlockage of the carburetor Air intake by a collapsed Air induction hose due to improper maintenance by an unknown party.NTSB FTW90DPG04Accident · No injuriesFinal reportAir Tractor 301A · Foreman, ARThe pilot's inadvertent stall/mush.NTSB MKC90LA147Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Egypt, ARThe pilot's failure to maintain directional control. A factor related to the accident was the soft/muddy area on the runway.NTSB MKC90LA129Accident · No injuriesLimited investigationFinal reportRockwell S2R · Tilton, ARFailure of the engine blower(supercharger). Related to the accident was the soft/wet terrain, where the forced landing was performed.NTSB MKC90LA080Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Mounds, ARThe pilot's improper compensation for wind conditions. Factors related to the accident were: the pilot's selection of the wrong runway and the resultant tailwind condition.NTSB MKC90LA079Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Des Arc, ARFailure of the engine fuel pump.NTSB MKC90LA076Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Newport, ARFailure of the pilot to maintain proper runway alignment, which resulted in an encounter with soft/wet (muddy) terrain and a subsequent nose over of the aircraft.NTSB MKC89LA190Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Wabbaseka, ARImproper planning/decision by the pilot which resulted in his failure to maintain clearance from the tall vegetation (grass). The tall vegetation & high density altitude were considered to be contributing factors.NTSB MKC89LA170Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Portland, AREngine failure due to failure of an engine cylinder.NTSB MKC89LA150Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Jonesboro, ARThe pilot's encounter with unsuitable terrain during a forced landing made necessary by the separation of three feet of one of the propeller blades.NTSB MKC89LA129Accident · Minor injuriesLimited investigationFinal reportGulfstream-Schweizer G-164B · Wynne, ARUnsuitable terrain selected by the pilot. A contributing factor was the rough/uneven landing area.NTSB MKC89LA079Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Stuttgart, ARFailure of the engine blower assembly drive shaft, while maneuvering at low altitude, and failure of the pilot to maintain adequate airspeed, which resulted in a stall before he could land.NTSB MKC88LA162Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Elaine, ARDuring an aerial application operation, the pilot said that immediately after breaking ground on takeoff, the engine quit. He attempted to re-land on the remaining available runway, but ran off the end, hitting a ditch and nosing over. Cause of the engine…NTSB MKC88LA161Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Gillett, ARWhile en route to engage in an aerial application operation, the plt said the engine began to misfire and cut out. Unable to correct the malfunction, the plt dumped his chemical load and began returning to the departure airstrip. En route, he felt he would…NTSB MKC88LA158Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Humphrey, ARWhile attempting to land on a narrow dirt road bordered by crops, the plt said he contacted the high vegetation on the right side. The acft began to veer to the right. The plt attempted to steer to the left and veered off the roadway into a ditch and nosed…NTSB MKC88LA159Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Swifton, ARShortly after takeoff during an aerial application operation, the pilot said he was unable to establish a positive climb. After traveling about 1 mile, he elected to dump his dry fertilizer load. When he dumped the load, the increased aerodynamic drag caused…NTSB MKC88DPG02Accident · 2 fatalFinal reportSnow 600-S2C · Almyra, ARTwo ag aircraft were spraying the same field. According to several witnesses, 1671S was heading south and 3660X was heading east. Both aircraft were actively engaged in the spraying operation but did not seem to the witnesses to be coordinating with each…NTSB MKC88LA141Accident · No injuriesLimited investigationFinal reportRockwell S2R · O'Kean, ARWhile performing an aerial application operation, the plt said he experienced a total powerplant failure. He attempted an emergency ldg in a cultivated rice field. During the ldg attempt, the aircraft sustained substantial damage to the propeller, landing…NTSB MKC88LA137Accident · No injuriesLimited investigationFinal reportGrumman G164B · Knobel, ARThe plt said he had just completed an aerial application operation and was returning to his base airfield to re-load. While in a low level cruise, the engine quit abruptly, and an emergency ldg was attempted in a soft, muddy soy bean field. During the ldg…NTSB MKC88LA122Accident · No injuriesLimited investigationFinal reportRockwell S2R · Brinkley, ARDuring the take-off roll for an aerial application operation, the pilot said he lost his left wheel braking capability. He continued the take-off, flew to the farm field to be treated, applied the load, then returned to a near by alternate landing strip…NTSB MKC88LA131Accident · No injuriesLimited investigationFinal reportRockwell S2R · Swifton, ARThe PIC was conducting ag-spray maneuvers dispensing liquid fertilizer to rice. During a procedure turn to return to the field the eng quit. The PIC chose an open field abt 60 degrees to his rt to land the aircraft. The field was wet, soft and rough. The acft…NTSB MKC88LA126Accident · No injuriesLimited investigationFinal reportRockwell S2R · England, ARThe plt said he had been flying under power lines during an aerial application operation, and while performing his downwind pass, an updraft caused him to collide with the bottom wires. He lost control of the aircraft and collided with the terrain.NTSB MKC88LA116Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Cotton Plant, ARThe pilot did not adequately secure the aircraft prior to hand-propping the engine. The engine started and resulted in the aircraft taxiing without a pilot at the controls. The pilot-less aircraft impacted a utility pole causing substantial damage.NTSB MKC88LA108Accident · No injuriesLimited investigationFinal reportGrumman G-164-A · Wynne, ARFollowing the takeoff from a private strip near Wynne, Arkansas, the pilot reported that he failed to establish and maintain an adequate angle of climb with the heavily loaded condition of the aircraft. The aircraft impacted trees in the flight path, then…NTSB MKC88LA087Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Waldenburg, ARThe acft was being positioned for an aerial application operation. While landing, the acft struck a 1.5 ft levee at the end of the private grass strip. Subsequently, the main gear sheared off, the wings were buckled & the prop was damaged.NTSB MKC87DPG03Accident · Serious injuriesFinal reportAir Tractor AT-301 · Tillar, ARThe pilot stated that the prop RPM became erratic. On approach, the prop ran completely out of control, causing the aircraft to nose down into a plowed field just short of the landing area. The a/c hit on the main landing gear, broke them off, then it nosed…NTSB MKC87LA168Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Holly Grove, ARThe pilot lost control on takeoff roll, ran off the side of the runway and impacted a dirt bank. The aircraft came to rest in an inverted position. Investigation revealed no preimpact mechanical malfunctions/failures.NTSB MKC87LA050Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A-600 · Hazen, ARThe pilot stated that he had flown six loads of wheat seeds and was returning to a private airstrip for another load when he ran out of daylight while on final approach to a landing. During the time he was considering the option of a rejected landing and a…NTSB MKC86LA155Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Harrisburg, ARThe aerial application airplane was departing from a short strip on a hot day. The pilot said the airplane would not climb and he was forced to put it down in a flooded rice field where it nosed forward to the inverted position. The pilot stated he should…