NTSB investigations: Pratt & Whitney R-985 series
1,867 cases on aircraft whose registry engine model is Pratt & Whitney R-985 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008'))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008'))
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 ANC90LA098Accident · No injuriesLimited investigationFinal reportDe Havilland DHC-2 · Caribou Lake, AKA power loss caused by the failure of a piston cylinder.NTSB MKC90LA134Accident · No injuriesLimited investigationFinal reportWeatherly 201-B · Stuttgart, ARFuel exhaustion induced power loss caused by the pilot's failure to refuel the airplane.NTSB LAX90LA221Accident · Serious injuriesLimited investigationFinal reportGrumman G21A · Long Beach, CAThe pilot's failure to retract the landing gear resulting in an inadvertent wheels-down landing in water. In addition, a loss of elevator control was encountered due to a stress corrosion failure of an elevator control cable turnbuckle as a result of…NTSB FTW90DRD10Accident · No injuriesFinal reportGrumman G-164B · Mamou, LAPilot misjudged wind information. Factors contributing to the accident were the tailwind, the trees and the levee.NTSB CHI90DEV04Accident · No injuriesFinal reportGrumman G-164B · Princeton, ILThe pilot-in-command's failure to maintain adequate clearance from obstacles during flight at low altitude, resulting in wire strike.NTSB LAX90DVA03Accident · Serious injuriesFinal reportNaval Aircraft Factory N3N-3 · Madera, CAThe pilot inadvertently descending into the ground. Contributing to the accident was the inflight opening of the hopper lid which partially obscured the pilot's vision.NTSB FTW90DRD05Accident · No injuriesFinal reportSchweizer G-164B · Reeves, LALoss of engine power due to a frozen rocker arm.NTSB FTW90DPA01Accident · No injuriesFinal reportGrumman G-164B · Bonham, TXA power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.NTSB MIA90WA095Accident · No injuriesForeign investigationBeech H-18 · Nassau, BahamasNTSB MKC90LA067Accident · No injuriesLimited investigationFinal reportGrumman AG-CAT G-164A · Parkin, ARTotal failure of the engine's master connecting rod.NTSB FTW90DRD03Accident · No injuriesFinal reportGrumman G-164A · Glynn, LALoss of directional control on the ground, due to intermittent locking of the right brake during the landing roll.NTSB CHI90LA072Accident · No injuriesLimited investigationFinal reportBeech E18S · Oak Creek, WIImproper planning/decision by the pilot. Factors related to the accident were: the adverse weather conditions, accumulation of structural and/or induction ice, and dark night.NTSB ANC90FA027Accident · No injuriesField investigationFinal reportBeech E18F · Anchorage, AKInadequate supervision by company/operator personnel and inadequate preflight planning/preparation by the captain, which resulted in an improperly loaded aircraft.NTSB ANC90LA022Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Kodiak, AKImproper compensation for wind conditions by the pilot, which resulted in loss of aircraft control during takeoff, and subsequent impact with the water. The weather conditions were contributing factors.NTSB MIA90WA015Accident · No injuriesForeign investigationBeech G18S · San Andros, BahamasNTSB SEA90LA008Accident · No injuriesLimited investigationFinal reportBoeing A75N1 · Salmon, IDFailure of pilot to properly evaluate weather conditions through mountainous terrain and fly at an altitude high enough to maintain terrain clearance.NTSB LAX89DUM04Accident · No injuriesFinal reportBeech D175 · El Cajon, CAInadequate visual lookout by the pilot of the other aircraft (N9645H).NTSB MIA89TL#07Accident · No injuriesClass 3Final reportGrumman G-164B · Mims, FLNTSB MIA89IA247Incident · No injuriesIncident investigationFinal reportBeech G18S · Jackson, MSFailure of the pilot to correctly perform the emergency gear extension procedures. Contributing to the accident was the failure of the normal gear extension system.NTSB MKC89LA189Accident · No injuriesLimited investigationFinal reportConsolidated-Vultee BT-13A · Kansas City, MOInadequate control tower service provided by tower personnel, and inadequate remedial action by the vehicle driver. The pilot's lack of visual lookout was considered to be a contributing factor.NTSB DEN89LA201Accident · No injuriesLimited investigationFinal reportWaco UPF7 · Watkins, COFailure of the left brake assembly, and subsequent loss of directional control by the pilot.NTSB CHI89DEX06Accident · No injuriesFinal reportGrumman G-164A · Sullivan, INA failure of the supercharger oil seal which resulted in a partial loss of engine power during takeoff and the uncontrolled touchdown during the forced landing. Factors related to the accident were: partial failure of the supercharger and spark plub fowling.NTSB SEA89LA138Accident · No injuriesLimited investigationFinal reportGrumman 164B · Hermiston, ORThe airport owners failure to mark a hidden hazard.NTSB FTW89DRA08Accident · Minor injuriesFinal reportGrumman-Schweizer G-164B · Anahuac, TXFailure of the supercharger bearing. The dirt bank was a contributing factor.NTSB ANC89LA123Accident · Serious injuriesLimited investigationFinal reportDe Havilland DHC-2 · Kodiak, AKPilot-in-command's continued VFR flight into know IFR flt conditions, resulting in a collision with rising terrain.NTSB DEN89LA160Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Holden, UTThe pilot's misjudgement of the effect of high density altitude on a heavily loaded aircraft.NTSB MKC89LA148Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Stockville, NETotal failure of the powerplant caused by a broken cylinder.NTSB ANC89LA103Accident · Serious injuriesLimited investigationFinal reportDe Havilland DHC-2 · Iliamna, AKInadequate annual inspection by maintenance personnel.NTSB FTW89DRD09Accident · No injuriesFinal reportSchweizer G-164A · Bunkie, LAThe loss of the number five cylinder in flight, resulting in a loss of engine RPM. The pilot misjudged the landing flare height due to obscured vision from fire and smoke and the airplane stalled and impacted the ground nose first.NTSB SEA89LA124Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Kassan, AKThe excessive taxi speed used by the pilot in the existing weather conditions. Contributing to the accident was the gusty tailwind.NTSB LAX89LA218Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Trinity Center, CAAn interruption of fuel to the engine for undetermined reasons.NTSB MIA89FA176Accident · 1 fatalField investigationFinal reportBoeing A-75 · Daytona Beach, FLThe biplane pilot failed to see and avoid the collision with the banner being towed by the other airplane.NTSB FTW89DRD06Accident · No injuriesFinal reportGrumman-Schweizer G-164B · Ville Platte, LAWear and/or failure of the carburetor/float. Factors related to the accident were: the terrain conditions.NTSB FTW89DRA05Accident · Minor injuriesFinal reportBoeing A75 · East Bernard, TXWater in fuel from improper servicing of the aircraft and improper preflight by the pilot. The tailwind & soft/wet terrain were contributing factors.NTSB CHI89LA088Accident · No injuriesLimited investigationFinal reportAvions Max Holste MH 1521 · Big Rapids, MIInadequate compensation for wind conditions by the pilot and his failure to maintain directional control. The the variable/gusty/crosswind condition was considered to be a contributing factor.NTSB MIA89LA141Accident · No injuriesLimited investigationFinal reportBoeing A75N1 · New Smyrna Bch., FLThe failure of the pilot to adequately preflight the airplane. Contributing to the accident was the pilot's failure to use the brakes to maintain directional control and poor inspection of the airplane by company maintenance personnel.NTSB MKC89LA085Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Advance, MOThe pilot's inadequate visual lookout resulting in his failure to see power lines in time to avoid them. Contributing to the accident was the reduced visibility due to fog.NTSB NYC89LA108Accident · No injuriesLimited investigationFinal reportBeech TC-45J · Johnstown, PAFailure of the pilot to maintain runway alignment. The crosswind and snow covered runway were related factors.NTSB LAX89DVA06Accident · Serious injuriesFinal reportGrumman G-164A · Riverdale, CAInadequate visual lookout by the pilot, when he diverted his attention. The power line was a related factor.NTSB SEA89FA027Accident · 1 fatalField investigationFinal reportde Havilland DHC-2 · Kasaan, AKThe plt planned to land at a seaplane base that was located in a bowl-shaped cove. Drg the landing, the acft touched down long on water swells & the plt elected to go around. Witnesses rprtd that drg the go-around, the plt initiated a steep turn while still…NTSB LAX89LA008Accident · No injuriesLimited investigationFinal reportCessna 182A · Visalia, CAA Cessna 182A & a Boeing A75 collided on the rwy. The pilot of the Boeing stated that he was doing touch & go ldgs & had the ldg Cessna in sight. The Boeing plt then lost site of the Cessna after it touched down on rwy 30. The Boeing plt assumed the Cessna…NTSB LAX88DVA15Accident · No injuriesFinal reportSchweizer G-164A · Laton, CANTSB ANC88LA138Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Mcgrath, AKWhile cruising, the pilot-in-command experienced a rough engine and finally an unexplained power reduction to idle. He was unable to glide the float equipped airplane to a body of water and executed a forced landing on the tundra where the airplane sustained…NTSB MKC88LA160Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Hebron, NEWhile making a aerial application swath run, the pilot was checking his spray booms because of some malfunctioning nozzles. Exiting the field between two groups of trees on the border he failed to see power line poles. He struck the wires, then the terrain,…NTSB ATL88DKG13Accident · No injuriesFinal reportGrumman G-164A · Fadette, ALThe pilot reported a partial power loss during an aerial application flight. The aircraft landed in the crops. The pilot stated that he found the number 3 cylinder partially separated from the engine.NTSB CHI88DEV04Accident · No injuriesFinal reportGrumman G164A · Chenoa, ILUnavailability of suitable terrain on which to accomplish a forced landing.NTSB MKC88LA133Accident · No injuriesLimited investigationFinal reportGrumman 164A · Poplar Bluff, MOThe pilot experienced an engine failure while attempting to land during an aerial application flight. Altitude was not adequate to select a suitable forced landing area. The aircraft impacted in a pipeline right of way and came to rest in a small stream,…NTSB MKC88LA132Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Knobel, ARProper touchdown point not attained, and aircraft control not maintained by the pilot in command.NTSB FTW88DRD11Accident · Minor injuriesFinal reportSchweizer G-164B · Cheneyville, LAThe ag airplane was returning after spraying chemical when the engine started to lose power. During the forced landing on a highway the left wing struck a road sign. No mechanical reason for the engine power loss was found. The acft had an annual inspection…NTSB CHI88LA136Accident · Minor injuriesLimited investigationFinal reportde Havilland DHC2-MK I · Warroad, MNThe pilot decided to land in the lake approximately 1000 yds from the sea plane base and was attempting a step-taxi back to the base when the acft struck a sand bar. The pilot stated that he was taxiing near tall grass where he thought the water was deep…