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 SEA01LA031Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 Mk. I · Kirkland, WAA malfunction of the aircraft's fuel selector valve and subsequent fuel starvation. Factors included a short emergency landing area, a wet landing surface, and a fence.NTSB NYC01FA007Accident · 1 fatalField investigationFinal reportBeech E18S · Wash. Ct. House, OHAn undetermined event, which resulted in an off airport landing. A factor in this accident was the night light condition.NTSB LAX00LA345Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Tracy, CALoss of engine power due to failure and separation of the number one connecting rod.NTSB DEN00LA172Accident · No injuriesLimited investigationFinal reportBoeing Stearman D75N1 · Englewood, COthe flight instructor not maintaining supervision. Contributing factors were the student's hard landing due to excessive flare and subsequent inadvertent stall, and the student's failure to maintain directional control during landing roll.NTSB CHI00LA285Accident · No injuriesLimited investigationFinal reportBoeing Stearman B75N1 · Cape Girardeau, MOthe pilot's improper decision to continue the flight when the fuel sight gauge indicated empty and the exhausted fuel supply. A factor was the corn crop.NTSB FTW00LA239Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Kaplan, LAthe failure of the supercharger during takeoff. A contributing factor was the lack of suitable terrain for the forced landing.NTSB SEA00LA159Accident · No injuriesLimited investigationFinal reportBoeing E75 · Mcminnville, ORThe disconnection of the left tailwheel control cable spring resulting in the positioning of the tailwheel in a right turn condition.NTSB ANC00LA098Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · King Salmon, AKThe pilot's inadequate compensation for crosswind conditions.NTSB ANC00LA091Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Big Lake, AKThe pilot's inadequate compensation for the wind conditions. A factor associated with the accident was a crosswind.NTSB CHI00LA203Accident · No injuriesLimited investigationFinal reportWeatherly 201B · Streator, ILthe pilot's preflight planning was inadequate which resulted in taking off in the wrong direction on the runway. Factors associated with the accident were the tailwind condition and the crop that the airplane contacted.NTSB NYC00LA190Accident · No injuriesLimited investigationFinal reportSpartan 7W · Jefferson, OHThe overload failure of the left main gear strut housing.NTSB LAX00LA246Accident · No injuriesLimited investigationFinal reportGrumman G-164B · King City, CAThe loss of engine power for undetermined reasons.NTSB ANC00LA074Accident · Minor injuriesLimited investigationFinal reportCessna 206 · King Salmon, AKThe inadequate visual lookout by the pilot of the other airplane, and the inadequate radio traffic advisories by the pilots of both airplanes.NTSB SEA00LA099Accident · Serious injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Colfax, WAThe pilots failure to maintain clearance from power transmission lines.NTSB FTW00LA167Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G164B · Natchitoches, LAThe failure of the pilot to maintain directional control during the landing roll, which resulted in a ground loop. A factor was the crosswind.NTSB CHI00LA137Accident · No injuriesLimited investigationFinal reportWeatherly 201C · Ionia, KSthe partial engine failure for undetermined reasons and the unsuitable terrain for landing encountered by the pilot. A factor to the accident was the hilly terrain condition.NTSB DEN00LA072Accident · Minor injuriesLimited investigationFinal reportWeatherly 201B · Rocky Ford, COA total loss of power due to an engine rocker arm failure and soft/unsuitable terrain during the subsequent forced landing.NTSB NYC00LA009Accident · Minor injuriesLimited investigationFinal reportGrumman G164 · Burkittsville, MDThe vehicle drivers inadequate lookout.NTSB SEA00FA001Accident · Minor injuriesField investigationFinal reportde Havilland DHC-2 Mark 1 · Port Blakely, WAThe pilot-in-command's failure to maintain adequate clearance from trees/terrain. Contributing factors were rising terrain and trees.NTSB ATL99LA133Accident · Minor injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Enterprise, ALThe loss of engine power for undetermined reasons. Contributing to the severity of the accident was the in-flight collision with a tree during the forced landing.NTSB ANC99LA124Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Iliamna, AKThe pilot's selection of an unsuitable takeoff area, and an inadvertent stall. Factors associated with the accident were large wave/swells, and low light conditions (dawn).NTSB CHI99LA262Accident · No injuriesLimited investigationFinal reportBeech C-45H · Grain Valley, MOthe failure of the pilot to use the tailwheel lock on takeoff, creating a condition where it was not possible for the pilot to maintain directional control. Factors were the unlocked tailwheel and the ditch.NTSB DEN99LA129Accident · No injuriesLimited investigationFinal reportBoeing A-75-N1 (Stearman) · Tooele, UTThe failure of the right main landing gear tire's inner tube, and the subsequent inadvertent ground loop by the pilot.NTSB SEA99LA127Accident · No injuriesLimited investigationFinal reportBeech D17S · Arco, IDFuel starvation which resulted in a loss of power. The pilot's improper management of fuel was a factor.NTSB CHI99LA254Accident · No injuriesLimited investigationFinal reportBeech G18S · Minneapolis, MNthe premature gear retraction and proper runway alignment not maintained during takeoff by the pilot. An additional cause was the proper descent rate not maintained by the pilot. Contributing factors were the carburetor icing conditionsNTSB FTW99LA182Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Iowa, LAThe pilot's failure to maintain clearance with the crops being sprayed. A factor was the pilot's diverted attention.NTSB CHI99LA214Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Timber Lake, SDthe pilots selection of the shorter runway and his failure to abort the takeoff. Factors to the accident were the high density altitude, the fence and the fence posts.NTSB SEA99LA079Accident · No injuriesLimited investigationFinal reportSnow S2C · Paul, IDThe pilot's inaccurate weight and balance calculations, and his delay in jettisoning the load which resulted in his failure to clear rising terrain. Contributing to the accident was the high density altitude, and the pilot's intentional operation with known…NTSB FTW99FA150Accident · 1 fatalField investigationFinal reportGrumman-Schweizer G164-B · Brinkley, ARThe pilot's inadvertent VFR flight into instrument meteorological conditions. Contributing factors were the pilots failure to maintain control of the aircraft, spatial disorientation, and the fog.NTSB NYC99LA119Accident · No injuriesLimited investigationFinal reportHoward DGA-15P · Covington, KYThe pilot's failure to maintain directional control during the takeoff/initial climb. A factor in the accident was the crosswind condition.NTSB FTW99LA149Accident · Serious injuriesLimited investigationFinal reportWeatherly 620B · Whiteface, TXThe pilot's selection of unsuitable terrain for takeoff. Contributing to the accident was the soft ground and the standing water on the runway.NTSB CHI99LA162Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Buxton, NDthe number one cylinder's separation, the pilot's visual lookout not possible through the oil given off by the number one cylinder, and the embankment. A factor in the accident was the oil.NTSB FTW99FA148Accident · 1 fatalField investigationFinal reportBeech C18S · Waldron, ARthe separation of a propeller blade in cruise flight as a result of fatigue cracking emanating from surface corrosion pitting.NTSB SEA99LA065Accident · No injuriesLimited investigationFinal reportBoeing Stearman 1B75A · Olympia, WAThe pilot's failure to adequately compensate for wind conditions. A factor contributing to the accident was a crosswind during the landing roll out.NTSB FTW99LA101Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Jennings, LAThe pilot's inadvertent stall during the departure turn to downwind. A factor was the tailwind.NTSB MIA99FA114Accident · 1 fatalField investigationFinal reportGrumman G-21A · Lauderdale Lake, FLThe pilots failure to correctly identify an in-flight emergency (fluctuating manifold pressure and rpm due to a disconnected spark plug lead / unscrewed ignition lead shroud) and failure to complete the engine shutdown procedure once it was initiated…NTSB CHI99FA105Accident · 1 fatalField investigationFinal reportBeech C-45G · Romulus, MIthe aircraft control not maintained and the inadvertent stall by the pilot while maneuvering to the landing area. The open door was a contributing factor.NTSB MIA99FA095Accident · 2 fatalField investigationFinal reportBeech AT11/18 · Tampa, FLthe pilot's failure to maintain control of the airplane resulting in an inadvertent stall at too low an altitude to allow for recovery.NTSB CHI99LA063Accident · No injuriesLimited investigationFinal reportBeech BE-C-45H · St. Joseph, MOthe pilot not maintaining directional control during the landing rollout. A factor in this accident was the patchy snow on the runway.NTSB LAX99LA070Accident · No injuriesLimited investigationFinal reportAvions Max Holste MH 1521 Broussard · Minden, NVThe pilot's failure to maintain proper runway alignment during a rejected takeoff. A factor in the accident was the undetermined pitch control/trim system problem, which led to the pilot's rejected takeoff decision and may have distracted him during attempts…NTSB MIA99LA041Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Fort Gains, GAa power loss due to internal damage to the second- and third- stage turbine rotor blades, due to thermal heat, rendering the engine incapable of producing full power, resulting in a forced landing, and subsequent impact with the terrain.NTSB ANC99LA007Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Chitina, AKThe pilot's inadequate preflight which failed to detect water contamination in the fuel system. A factor was the unsuitable terrain in the emergency landing area.NTSB FTW98LA410Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Mart, TXThe loss of engine power for an undetermined reason. A factor was the lack of suitable terrain for the forced landing.NTSB ANC98LA157Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Iliamna, AKThe pilot's inadequate compensation for the gusty wind conditions, and his attempted flight into adverse weather. Factors associated with the accident are high and gusty winds.NTSB FTW98LA407Accident · No injuriesLimited investigationFinal reportSnow S2C · Bovina, TXThe pilot's failure to maintain directional control during the landing roll.NTSB ANC98LA112Accident · 1 fatalLimited investigationFinal reportde Havilland DHC-2 · Nondalton, AKThe pilot's inadequate procedures/directives when he allowed a passenger to exit the cabin area while the propeller was still turning, and the passenger's failure to follow the pilot's instructions to stay away from the propeller. A factor associated with the…NTSB SEA98LA140Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Caldwell, IDThe pilot-in-command's misjudgment of clearance with a power line, resulting in a collision with the line. Factors included a power line and dark night light conditions in the spray area.NTSB LAX98LA207Accident · Serious injuriesLimited investigationFinal reportNaval Aircraft Factory N3N-3 · Skull Valley, AZThe pilot's failure to maintain control of the aircraft while maneuvering at a low altitude.NTSB FTW98LA249Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Iowa, LApartial loss of engine power during takeoff for undetermined reason(s). The obstructions (trees & dirt bank) were related factors.NTSB CHI98LA175Accident · No injuriesLimited investigationFinal reportBoeing Stearman A75-N1 · West Fargo, NDthe pilot's failure to assure an adequate fuel supply in order to complete the flight. A factor associated with the accident was the soft terrain on which the forced landing was made.