Final NTSB investigations
604 cases where the sequence of events included 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.\"completionStatus\" = 'Completed'
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '340' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\"))
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."completionStatus" = 'Completed' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '340' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")) 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 ERA21LA024Accident · Serious injuriesClass 3 · LimitedFinal reportRobinson R22 · Winder, GAMaintenance personnel’s failure to properly secure the engine cooling fan attachment bolts, leading to vibration of the cooling fan, the overextension of the tension belt actuator, the failure of the drive system vee-belts, and the loss of power to the rotor…NTSB ERA21LA006Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA28 · Fulton, NYThe mechanic’s improper maintenance, which resulted in the crankshaft expansion plug dislodging in flight and a subsequent forced landing.NTSB ERA20LA309Accident · 3 fatalClass 3 · LimitedFinal reportPiper PA28 · McMinnville, TNA total loss of engine power due to a fatigue failure in a cylinder, and the pilot’s subsequent failure to maintain airspeed and her exceedance of the airplane’s critical angle-of-attack while maneuvering at low altitude.NTSB CEN20LA377Accident · No injuriesClass 3 · LimitedFinal reportStinson 108-3 · Coleman, MIThe pilot’s improper installation of the generator drive gear, which resulted in a total loss of engine power.NTSB CEN20LA279Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT502 · Dalhart, TXThe total loss of engine power due to a failed fuel control unit bearing.NTSB CEN20LA260Accident · No injuriesClass 3 · LimitedFinal reportChampion 7EC · Port O'Conner, TXThe loss of engine power due to a stuck intake valve.NTSB CEN20LA286Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson R44 · Welsh, LAA partial loss of engine power while in flight due to corrosion of engine components, which resulted in a loss of control and a subsequent impact with terrain.NTSB CEN20LA256Accident · 1 fatalClass 3 · LimitedFinal reportCessna 320 · Round Rock, TXImproper maintenance that led to a loss of engine power due to a failed left engine magneto, the pilot’s improper application of single engine emergency procedures, and his failure to maintain control of the airplane which resulted in a collision with trees.NTSB WPR20LA193Accident · Serious injuriesClass 3 · LimitedFinal reportThatcher CX4 · Upland, CAThe inflight separation of the propeller assembly due to a fatigue fracture of the crankshaft. Contributing to the accident was the pilot’s restricted visibility during landing, which resulted in an excessive approach speed, a long landing, and subsequent…NTSB WPR20LA144Accident · No injuriesClass 3 · LimitedFinal reportMooney M20J · Phoenix, AZA total loss of engine power due to oil starvation for reasons that could not be determined due to a lack of available evidence, which resulted in impact with terrain during a subsequent forced landing.NTSB CEN20LA107Accident · No injuriesClass 3 · LimitedFinal reportZenith CH601 · Cabool, MOThe loss of engine power due to failure of the No. 1 cylinder piston for reasons that could not be determined based on available evidence.NTSB CEN20LA109Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT 602 · Dumas, ARThe pilot’s failure to maintain clearance from a power line pole during a low-level aerial application flight, which resulted in impact with the bracket and a subsequent forced landing.NTSB ENG20LA015Incident · No injuriesClass 4 · LimitedFinal reportAirbus A220 · Bordeaux, FranceA No. 1 (left) engine low pressure compressor (LPC) stage 1 integrally bladed rotor (IBR) separation due to a high cycle fatigue crack (HCF) that originated at the runout of an airfoil leading edge root radius. The HCF crack developed because of a…NTSB CEN20FA035Accident · 2 fatalClass 3 · FieldFinal reportBell 407 · Gulf of Mexico (Gulf of Mexico)A total loss of engine power due to the failure of the engine’s Nos. 3 and 4 bearings and the power turbine pinion gear, and subsequent loss of main rotor rpm, which resulted in a loss of control and impact with the water.NTSB ERA20FA031Accident · 1 fatalClass 3 · FieldFinal reportCessna 150 · New Bedford, MAPilot impairment due to exposure to carbon monoxide as a result of undetected corrosion and holes in the engine’s left exhaust muffler.NTSB ENG20LA001IncidentClass 3 · LimitedFinal reportAirbus BD-500-1A11 (CS300) · West Flanders Province, BelgiumA No. 1 (left) engine low pressure compressor (LPC) stage 1 integrally bladed rotor (IBR) separation due to a high cycle fatigue crack (HCF) that originated at the runout of an airfoil leading edge root radius. The HCF crack developed because of a…NTSB ENG19IA034Incident · No injuriesClass 3 · IncidentFinal reportAirbus A220 · Côte-d'Or Region, FranceA No. 1 (left) engine low pressure compressor (LPC) stage 1 integrally bladed rotor (IBR) separation due to a high cycle fatigue crack (HCF) that originated at the runout of an airfoil leading edge root radius. The HCF crack developed because of a…NTSB CEN19LA303Accident · No injuriesClass 3 · LimitedFinal reportPhantom Aeronautics X-1 · Van Wert, OHA loss of engine power due to the separation of the carburetor from the intake socket resulting from the improper installation of the intake silencer.NTSB CEN19LA295Accident · Minor injuriesClass 3 · LimitedFinal reportAir Tractor AT502 · Olney, TXA loss of thrust control due to a propeller surge event, which resulted in a forced landing shortly after takeoff.NTSB CEN19TA293Accident · No injuriesClass 3Final reportPiper J3C · Russiaville, INThe pilot's failure to reinstall the oil cap after adding oil, which resulted to oil starvation and a precaautionary landing.NTSB WPR19LA233Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 120 · Livermore, CAA partial loss of engine power due to fouled spark plugs in the No. 4 cylinder. Contributing to the accident was the pilot’s exceedance of the airplane’s critical angle of attack and a subsequent loss of control during the initial climb.NTSB ANC19LA046Accident · No injuriesClass 3 · LimitedFinal reportCessna 208B · Lahaina, HIThe pilots’ failure to maintain a proper approach speed and their decision to continue the approach for landing, which resulted in the airplane landing long and a subsequent runway overrun.NTSB WPR19LA218Accident · No injuriesClass 3 · LimitedFinal reportExtra EA300 · Mesa, AZThe flight instructor’s operation of the airplane outside of the manufacturer’s limitations, which resulted in fuel starvation and a partial loss of engine power. Contributing to the accident was an inoperative electric fuel boost pump.NTSB CEN19LA249Accident · Minor injuriesClass 3 · LimitedFinal reportCessna A185 · Saginaw, MIMaintenance personnel’s failure to properly align the crankshaft during an engine reassembly which led to a fatigue failure of the crankshaft and the loss of all engine power.NTSB WPR19LA226Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 177RG · Fall City, WAThe failure of the No. 3 cylinder intake valve that resulted in a partial loss of engine power and a forced landing on uneven terrain.NTSB ENG19IA029Incident · No injuriesClass 3 · IncidentFinal reportAirbus A220 · Perrigny-sur-Armançon, FranceA No. 1 (left) engine low pressure compressor (LPC) stage 1 integrally bladed rotor (IBR) separation due to a high cycle fatigue crack (HCF) that originated at the runout of an airfoil leading edge root radius. The HCF crack developed as a result of a…NTSB WPR19LA200Accident · No injuriesClass 3 · LimitedFinal reportBeech 33 · Battleground, WAA failure of the throttle control assembly for reasons that could not be determined based on available evidence, which resulted in a runway overrun and impact with an obstacle.NTSB ERA19LA228Accident · No injuriesClass 3 · LimitedFinal reportPietenpol BIG Piet · Gainesboro, TNSeparation of the spinner cap for reasons that could not be determined based on available evidence, which resulted in contact and subsequent separation of the wooden propeller blade tip.NTSB WPR19TA186Accident · No injuriesClass 3Final reportGlasair SH II · San Bernardino, CAA fuel leak caused by age-degraded fuel hoses, which resulted in a total loss of engine power and fire before takeoff. Contributing to the accident was inadequate maintenance.NTSB CEN19LA163Accident · Serious injuriesClass 3 · LimitedFinal reportGriff Challenger · Switz City, INA total loss of engine power due to failure of a connecting rod bearing. Contributing to the engine failure was the lack of an engine overhaul within the prescribed interval.NTSB CEN19FA161Accident · 1 fatalClass 3 · FieldFinal reportCessna 425 · Butler, MOThe pilot’s loss of airplane control during a descent to a diversion airport with only the left engine operating. Contributing to the accident was a malfunction of the right engine throttle, the cause of which could not be determined.NTSB CEN19LA159Accident · No injuriesClass 3 · LimitedFinal reportLancair LC41 · Cleburne, TXA total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect.NTSB CEN19LA146Accident · No injuriesClass 3 · LimitedFinal reportSikorsky S76 · Morrilton, ARThe improper securing of the exhaust duct bolts, which resulted in the duct becoming unseated and substantial heat damage to the tail rotor drive shaft.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 WPR19LA128Accident · No injuriesClass 3 · LimitedFinal reportBeech 35 · Sedona, AZThe partial loss of engine power due to deteriorated O-rings in the throttle metering assembly. Contributing to the accident was non-compliance with the manufacturer's recommended throttle metering assembly overhaul schedule.NTSB WPR19LA108Accident · Serious injuriesClass 3 · LimitedFinal reportEuropa XS · Winters, CAThe pilot's failure to properly install a wrist pin circlip, which resulted in internal damage to the No. 5 cylinder and a subsequent total loss of engine power.NTSB WPR19LA092Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Melba, IDThe total loss of engine power due to a separated carburetor idle mixture adjustment screw and spring assembly for reasons that could not be determined.NTSB ERA19FA106Accident · 1 fatalClass 2 · FieldFinal reportStol UC-1 · Winter Haven, FLA total loss of left engine power for reasons that could not be determined, and the instructor's failure to maintain airspeed while maneuvering for a forced landing, which resulted in a loss of control. Contributing to the accident was the instructor's…NTSB ENG19IA013Incident · No injuriesIncident investigationFinal reportBoeing 737 · Orlando, FLA No. 1 (left) engine high pressure compressor stage 2 blade separation. The blade separated due to a mixed-mode fatigue crack that originated on a blade disk post and was initiated by a misaligned (out-of-schedule) high pressure compressor stage 1 variable…NTSB CEN19LA056Accident · 2 fatalLimited investigationFinal reportDouglas DC3C · Kidron, OHThe loss of airplane control after an engine flameout and auto-feather system interruption during the takeoff climb, which resulted in an impact with terrain.NTSB CEN19LA055Accident · 1 fatalClass 3 · LimitedFinal reportBeech 36 · Fredericksburg, TXThe loss of engine power due to fatigue failure of the crankshaft.NTSB CEN19LA066Accident · Minor injuriesLimited investigationFinal reportPiper PA-32R-300 · Adrian, MIThe airframe and powerplant mechanic's lack of experience in the overhaul of the engine model and the improper torque of the crankshaft gear bolt, which resulted in fatigue failure of the bolt and a total loss of engine power during an approach for landing.NTSB ENG19IA008IncidentClass 3 · IncidentFinal reportAirbus A220 · Busan, South KoreaThe manufacturer’s inadequate cleaning of the crucible before melting the nickel alloy used in casting the low pressure turbine stage 3 blades that resulted in a casting anomaly from where an intergranular crack occurred became the origin of a fatigue crack…NTSB ERA19LA079Accident · No injuriesLimited investigationFinal reportCessna 172 · Fort Lauderdale, FLA total loss of engine power due to the fatigue fracture of the No. 2 exhaust rocker arm stud.NTSB ERA19LA069Accident · No injuriesLimited investigationFinal reportCessna 152 · Bell Glade, FLA partial loss of engine power due to the No. 1 cylinder's valve keeper becoming dislodged, which ultimately resulted in the intake valve becoming stuck in the valve guide and in the loss of compression to the cylinder.NTSB CEN19LA047Accident · No injuriesLimited investigationFinal reportRans S12 · McClure, OHThe cold seizure of the cylinder/piston due to the pilot’s failure to adequately warm the engine before takeoff, which resulted in a loss of engine power during a departure climb.NTSB WPR19FA022Accident · 4 fatalClass 2 · FieldFinal reportPiper PA28 · Guthrie Center, IAPilot incapacitation due to carbon monoxide poisoning as a result of an undetected crack in an engine exhaust muffler, which permitted entry of exhaust gasses into the cabin via the cabin heat system.NTSB WPR19LA010Accident · Serious injuriesLimited investigationFinal reportPiper PA46 · Hurricane, UTThe mechanic’s failure to properly align the engine exhaust crossover pipe during replacement, and his supervisor’s failure to properly inspect the installation, which resulted in an in-flight fire and the loss of engine power.NTSB ERA19LA019Accident · No injuriesLimited investigationFinal reportCessna 172 · Lynchburg, VAThe stuck No. 2 cylinder exhaust valve, which resulted in a partial loss of engine power and a subsequent forced landing and impact with a ditch.NTSB ERA19LA006Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 205 · Wagoner, OKMaintenance personnel’s improper maintenance of the magnetos, which resulted in a loss of engine power.