NTSB investigations
628 cases where the defining event was Powerplant sys/comp malf/fail.
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 e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.\"isDefiningEvent\" AND e.\"tier2Number\" = '340') 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 e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '340') ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run 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 ERA11IA521Incident · No injuriesIncident investigationFinal reportBeech V35 · New Haven, CTThe in-flight fatigue failure of the engine’s crankshaft, which resulted in the separation of the forward portion of the crankshaft and the propeller.NTSB WPR11GA431Accident · Minor injuriesFinal reportBell 205 · Tehachapi, CAThe pilot's inability to adequately execute an emergency autorotation due to the flight's low altitude during external load operations, which resulted in a hard landing. Contributing to the accident was a torsionally overstressed tachometer shaft, which sent…NTSB ERA11LA483Accident · Minor injuriesLimited investigationFinal reportDurling James RV-6A · Hollywood, FLParticulate ingestion from the engine, which resulted in the malfunction of the propeller governor during the airplane’s initial climb.NTSB WPR11LA423Accident · Minor injuriesLimited investigationFinal reportArrow Falcon Exporters UH-1H · Stockton, CAA total loss of engine power due to the separation of a tooth from the starter-generator drive gear, which resulted in failure of the engine oil pump and subsequent oil starvation.NTSB CEN11LA568Accident · Serious injuriesLimited investigationFinal reportQuad City Challenger · Granbury, TXThe leak in the plastic connectors in the fuel lines, which resulted in decreased engine power during the initial climb.NTSB CEN11LA566Accident · No injuriesLimited investigationFinal reportAir Tractor AT-400 · Nelson, NEFailure of the fuel control unit's spool cap bearing for reasons that could not be determined during extensive postaccident examination, and the pilot’s decision to shut the engine down without sufficient altitude and distance to reach the runway.NTSB CEN11LA563Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Mansfield, SDThe loss of engine power due to debris in the engine air intake system.NTSB ERA11LA461Accident · No injuriesLimited investigationFinal reportPiper PA-46-310P · Elizabethtown, NCThe improper securing of a “B” nut on the power turbine control (Py) line by unknown maintenance personnel, which resulted in a total loss of engine power. Contributing to the accident was the pilot's failure to use the manual fuel override switch.NTSB CEN11LA491Accident · No injuriesLimited investigationFinal reportBeech C35 · Medina, OHThe loss of engine power due to fuel starvation due to an age-related failure of the engine-driven fuel pump. Also causal was the failure of the maintenance facility to overhaul the fuel pump and the failure of the operator to ensure that the pump was…NTSB CEN11LA460Accident · No injuriesLimited investigationFinal reportAyres S2R600 · Pine Bluff, ARThe use of an incorrect mounting bolt by maintenance persons to attach the engine torque sensor, which resulted in an internal failure of the torque sensor and subsequent loss of engine power due to fuel starvation.NTSB ERA11LA383Accident · No injuriesLimited investigationFinal reportCessna 150L · Plymouth, MAA partial loss of engine power during initial climb due to a stuck cylinder valve, which resulted from excessive corrosion and carbon deposits on the valve springs due to inadequate maintenance.NTSB WPR11LA290Accident · Minor injuriesLimited investigationFinal reportChristen Industries Pitts S-1T · Alkali Lake, ORThe loss of engine oil during cruise flight due to the failure of the front bearing oil seal.NTSB ENG11IA035Incident · Minor injuriesIncident investigationFinal reportBoeing 757-232 · Atlanta, GAFuel leaking from the fuel flow transmitter that ignited on contact with the engine’s hot cases which resulted in an engine undercowl fire. The fuel leak resulted from the fuel flow transmitter end housing backing off from the main housing, creating a gap…NTSB CEN11LA413Accident · No injuriesLimited investigationFinal reportCessna 172N · Bedford Park, ILA loss of engine power due to a fractured push rod precipitated by a stuck exhaust valve.NTSB CEN11LA404Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T34 · Athleimer, ARFailure of the first stage planetary gearset in the propeller reduction gearbox, which resulted in catastrophic engine failure. Contributing to the failure was the misrepresentation of the gearset being zero-timed by the company that sold the gearset to the…NTSB CEN11LA367Accident · Minor injuriesLimited investigationFinal reportJones Cozy Mark IV · Sioux City, IAThe pilot's improper installation of the gascolator gasket during the airplane's last condition inspection, which resulted in a partial loss of engine power while maneuvering.NTSB CEN11LA370Accident · Serious injuriesLimited investigationFinal reportBell 47G-3B-1 · Lakeville, MNThe loss of engine power due to a loose B-nut on the compressor discharge pressure bleed line.NTSB ERA11LA216Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Culpeper, VAMechanical failure of the transmission for reasons that could not be determined because the transmission could not be torn down.NTSB ERA11LA204Accident · No injuriesLimited investigationFinal reportRobinson R22 · Goshen, NYThe pilot’s failure to adhere to published preflight checklist limitations and procedures, resulting in excessive slack and subsequent failure of the power transmission belts and a total loss of rotor system drive.NTSB ENG11IA021Incident · No injuriesIncident investigationFinal reportBombardier DHC 8 402 · Pittsburgh, PAthe flight crew's delay in shutting down the left engine following an engine oil pressure master warning, which led to a hard rub inside the engine that served as an ignition point for a titanium fire. Contributing to the event was a PW150 No. 5 seal design…NTSB WPR11LA167Accident · No injuriesLimited investigationFinal reportRotorway A600 · Chandler, AZA design modification that changed the fasteners and components used to attach the main rotor drive pulley to the engine, which resulted in fatigue failure of those fasteners and a complete loss of power to the main rotor.NTSB CEN11FA202Accident · Minor injuriesField investigationFinal reportCessna T210M · Independence, MOLatent dimensional discrepancies related to the engine crankcase main bearing saddle bores, which precipitated the fatigue failure of the crankshaft and a complete loss of engine power. Contributing to the accident was the engine manufacturer's failure to…NTSB ERA11LA130Accident · No injuriesLimited investigationFinal reportCirrus Design SR22 · Cross City, FLA total loss of engine power resulting from the failure of the camshaft due to fatigue cracks. Contributing to the accident was the inadequate quality inspection of the camshaft after initial manufacture.NTSB WPR11LA102Accident · No injuriesLimited investigationFinal reportPiper PA-28-235 · San Luis Obispo, CAThe loss of engine power due to the fatigue fracture of one attachment bolt for the left idler gear shaft, which resulted from an insufficient preload on both attachment bolts.NTSB ERA11LA117Accident · No injuriesLimited investigationFinal reportConvair 340-71 · Charlotte AmalieThe captain’s decision to continue the flight with the left engine backfiring, resulting in an engine fire shortly after takeoff. Contributing to the accident were the captain’s decision to continue the flight following a report of black smoke trailing the…NTSB ENG11IA011Incident · No injuriesIncident investigationFinal reportBoeing 737 · San Francisco, CAThe probable cause of the undercowl in-flight engine fire was the insufficient installation torque of the bolts that secure the fuel manifold cover to the fuel manifold. Engine vibrations and fuel pressure cycles caused the bolts to gradually loosen further…NTSB WPR11LA070Accident · Minor injuriesLimited investigationFinal reportBellanca 7KCAB · Corona, CAThe total loss of engine power due to oil exhaustion as a result of a broken oil line.NTSB CEN11CA030Accident · No injuriesData collectionFinal reportConrad Theodore J Thorp T-18 · Fredericksburg, TXThe malfunction of the throttle clamp, which resulted in the pilot's inability to control the engine's power setting.NTSB ERA10TA493Accident · Minor injuriesFinal reportBell 412 · Brooklyn, NYThe fatigue fracture of the reduction gearbox output drive gear, which resulted in the loss of power output from the engines to the helicopter rotor blade system and a subsequent forced landing. The fracture of the output drive gear was caused by a fatigue…NTSB CEN10CA541Accident · Minor injuriesData collectionFinal reportAerolite Bearcat · Mineola, TXFailure of the oil injection pump resulting in a total loss of engine power.NTSB WPR10LA413Accident · Serious injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Buckeye, AZAn increase in engine rpm and vibration, which resulted in an aborted takeoff and runway excursion. The reason for the increased engine rpm and vibration could not be determined because of postaccident fire damage.NTSB ERA10LA376Accident · No injuriesLimited investigationFinal reportBeech K35 · Philadelphia, MSA throttle control malfunction during landing for undetermined reasons, resulting in a runway overrun.NTSB ERA10LA362Accident · No injuriesLimited investigationFinal reportGarlick Helicopters OH-58A+ · Rowley, MAThe failure of the power turbine governor internal driveshaft bearings, resulting in the failure of the governor.NTSB CEN10CA398Accident · No injuriesData collectionFinal reportBradshaw Quicksilver MX II · Newark, ILA total loss of engine power during cruise when the ignition switch vibrated into the "off" position, leading to the airplane's impact with a ditch during the off-field landing.NTSB CEN10LA295Accident · Minor injuriesLimited investigationFinal reportPitts Aerobatics S-2B · Amarillo, TXThe fracture of the fuel pump housing for undetermined reasons.NTSB ERA10TA261Accident · No injuriesFinal reportBell 407 · Abingdon, VAThe improper repair of an engine component by a repair facility, which resulted in a complete loss of engine power. Contributing to the accident was the failure of the repair facility to recognize that an improper repair had been accomplished, which allowed…NTSB ERA10LA229Accident · No injuriesLimited investigationFinal reportDalin Ronald K T-51 Mustang · Lakeland, FLThe builder’s use of inadequate material for the exhaust manifold adapters resulting in heat damage and chafing of the crankshaft synchronizer and timing wires that rendered an inoperative ignition system and loss of engine power.NTSB ERA10LA207Accident · 1 fatalLimited investigationFinal reportLuciano Edison HA-2 Sportster · Humacao, PRThe failure of the pilot to maintain control of the gyrocraft while maneuvering after takeoff. Contributing to the accident was the pilot’s operation of the gyrocraft with an inoperative right magneto.NTSB CEN10LA188Accident · Serious injuriesLimited investigationFinal reportBeech 95 · Eden Prairie, MNThe fatigue failure of an intake valve spring on the right engine, which resulted in a partial loss of engine power on takeoff.NTSB CEN10CA172Accident · No injuriesData collectionFinal reportKinney Kevin Zenith 601XL · Warren, OHA total loss of engine power due to the failure of an oil hose due to improper installation of the hose.NTSB ERA10LA175Accident · 1 fatalLimited investigationFinal reportSmith Edward I Lancair IV-P · Hilton Head Island, SCA loss of engine power due to the failure of the crankshaft as a result of a previous propeller strike.NTSB CEN10LA123Accident · Minor injuriesLimited investigationFinal reportCessna 172N · Genoa City, WIA total loss of engine power due to the failure of the bolts that held in place the connecting rods to the engine's No. 3 and No. 4 cylinders as a result of the engine overhaul facility's improper installation of the bolts during a recent overhaul.NTSB WPR10LA128Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301T · Dolan Springs, AZThe fuel flow divider inlet line nut coming loose during cruise flight, resulting in a fuel leak and in-flight fire. The root cause of the loose B-nut fitting could not be determined. Contributing to the accident was the pilot's decision to fly the airplane…NTSB WPR10LA127Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Los Banos, CAA partial loss of engine power due to a failure of the throttle interconnect hardware, which resulted in a hard landing.NTSB WPR10LA126Accident · Serious injuriesLimited investigationFinal reportArrow Falcon Exporters OH-58A · Escalon, CAA loss of engine power during cruise flight due to the fatigue failure of the pneumatic fuel-to-governor control line. Also causal was the inadequate installation of the pneumatic line by maintenance personnel, and the pilot’s decision to continue flight with…NTSB WPR10WA110Accident · Serious injuriesForeign investigationGarlick TH1F · Canowindra, AustraliaOn December 23, 2009, at 1850 local time, a Garlick TH-1F helicopter (modified Bell 204), Australian registry VH-UHD, registered to and operated by Coloundra Helicopter Center Pty, Ltd., collided with trees and terrain while maneuvering during an aerial fire…NTSB WPR10FA056Accident · 1 fatalField investigationFinal reportBeech A36 · San Gabriel, CAFailure of the exhaust band V-clamp during cruise flight, which resulted in an in-flight fire and a subsequent forced landing.NTSB DCA09WA078Accident · No injuriesForeign investigationRobinson R44 · Annerdale, South AfricaOn September 25, 2009, about 2100 UTC, ZS-RMN, a Robinson R44, operated by National Airways Corporation, landed hard during an autorative landing near Annerdale, South Africa. The pilot and passenger were not injured. The helicopter was substantially damaged.…NTSB ERA09LA510Accident · No injuriesLimited investigationFinal reportSocata TB 9 Tampi · Milner, GAThe failure of the No. 3 cylinder exhaust valve for undetermined reasons.NTSB CEN09LA574Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Kimball, NEA loss of engine power due to improper installation of an oil line fitting resulting in oil depletion.