NTSB investigations
1,408 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.
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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 352) 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352) 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 NYC06LA165Accident · 1 fatalLimited investigationFinal reportNorth American Navion · Sturgis, KYA total loss of engine power due to a leaking fuel pump gasket.NTSB DFW06LA172Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Midland, TXThe partial loss of engine power as result of the maintenance personnel's failure to comply with a manufacture's Service Bulletin (SB). A contributing factor was the lack of suitable terrain for the forced landing.NTSB DFW06IA171Incident · No injuriesIncident investigationFinal reportMooney M20J · Beaumont, TXThe improper installation of the propeller governor by maintenance personnel, which resulted in a partial loss of engine power and subsequent forced landing. A contributing factor was the lack of suitable terrain for the forced landing.NTSB LAX06CA191Accident · No injuriesData collectionFinal reportPiper PA-28R-200 · Alpine, CAa loss of engine power due to the aviation maintenance technician's failure to install the correct oil sump quick drain, which resulted in the inadvertent draining of engine oil during flight.NTSB SEA06CA107Accident · No injuriesData collectionFinal reportTaplin Avid Flyer · Grants Pass, ORThe partial loss of engine power for undertermined reasons, resulting in a forced landing and substantial damage to the airplane. A contributing factor was the transmission wire.NTSB LAX06LA164Accident · No injuriesLimited investigationFinal reportBoeing Stearman E75 · Show Low, AZthe collapse of the air intake duct resulted in a loss of engine power. A factor was the uneven terrain in the landing area.NTSB ATL06LA072Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Monroeville, ALPartial loss of engine power for undetermined reasons, which resulted in a forced landing and subsequent nose over.NTSB NYC06LA089Accident · No injuriesLimited investigationFinal reportPiper PA-28RT-201 · Philadelphia, PAA fatigue failure of the number 3 cylinder attachment studs, which resulted in a loss of engine power and subsequent forced landing.NTSB ATL06LA060Accident · Serious injuriesLimited investigationFinal reportJust Highlander · Walhalla, SCThe pilot and owner/builders failure to determine the reason for partial loss of engine power resulting in loss of engine power due to fuel system contamination on a subsequent flight.NTSB ATL06LA051Accident · Serious injuriesLimited investigationFinal reportEakle R Grandin Jr Talon XP · Auburn, ALThe pilot's failure to maintain airspeed which resulted in an inadvertent stall. A factor was the improper maintenance inspection of the engine fuel lines resulting in loss of engine power due to a loose fuel line and subsequent fuel starvation.NTSB DFW06LA078Accident · 1 fatalLimited investigationFinal reportCessna C-37 · Fittstown, OKThe loss of engine power due to a cracked cylinder head. A contributing factor was the lack of suitable terrain available to the pilot for the forced landing.NTSB MIA06LA056Accident · Serious injuriesLimited investigationFinal reportCessna 150L · Fruitland Park, FLThe fatigue failure of the No. 4 cylinder resulting in a loss of engine power and subsequent forced landing.NTSB NYC06LA054Accident · Minor injuriesLimited investigationFinal reportCessna 206 · Lexington, KYFailure of the throttle cable. Contributing to the accident was unsuitable terrain for a forced landing.NTSB MIA06LA044Accident · Minor injuriesLimited investigationFinal reportMBB BO-105S · Ponce, PRA loose B-nut on the PC line connecting the power turbine governor (PTGOV) to the fuel control unit (FCU) that created a leak and caused the engine to roll back to an idle condition, causing a low hydraulic system pressure and subsequent control lock. A…NTSB LAX06CA088Accident · Serious injuriesData collectionFinal reportHuntington KIS · Camarillo, CAa partial loss of engine power due to the engine's electronic control system reverting to a designed reduced power mode of operation.NTSB LAX06CA035Accident · No injuriesData collectionFinal reportVans RV-4 · Apple Valley, CAa partial loss of engine power for undetermined reasons.NTSB NYC06CA012Accident · No injuriesData collectionFinal reportWeber Glastar · Summersville, WVa loss of engine power due to a stuck carburetor float needle.NTSB DFW06CA008Accident · Minor injuriesData collectionFinal reportCessna 172P · Hitchcock, TXA loss of engine power due to a cracked cylinder.NTSB CHI06CA002Accident · No injuriesData collectionFinal reportCreed RV-4 · Mitchell, SDThe mechanic's improper installation of the air filter assembly which resulted in foreign debris inside the carburetor. A factor associated with the accident was the rough terrain on which the airplane was landed.NTSB NYC05LA144Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-180 · Millville, NJThe flight instructor's improper in-flight decision to perform a emergency landing to a runway, with a tailwind, and his failure to maintain airspeed after aborting that landing, which resulted in an inadvertent stall and subsequent impact with terrain.…NTSB DFW05CA246Accident · No injuriesData collectionFinal reportTaylorcraft BC12-D · Guion, ARThe loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.NTSB ATL05CA162Accident · Serious injuriesData collectionFinal reportPiper PA-34-200 · Greenville, ALThe loss of left engine power due to fuel system contamination and the pilot's failure to follow procedures and his improper use of the throttle and flight controls during the forced landing.NTSB LAX05FA296Accident · 2 fatalField investigationFinal reportCessna 152 · Lakewood, CAthe certified flight instructor's failure to maintain an adequate airspeed resulting in a stall and loss of control. Also causal was the engine's loss of partial power due to inadequate maintenance, worn spark plugs, worn pistons, and broken piston rings.NTSB CHI05CA256Accident · No injuriesData collectionFinal reportBoeing A75N1 · Ellisville, ILThe loss of engine power due to the failure of the number four connecting rod. A factor to the accident was the soybean crop.NTSB IAD05LA130Accident · No injuriesLimited investigationFinal reportCessna 172S · Kutztown, PAThe pilot's failure to attain a proper touchdown point as a result of the airplane's excessive airspeed. A factor was the partial loss of engine power due to a seized exhaust valve.NTSB LAX05CA285Accident · No injuriesData collectionFinal reportBellanca 7ECA · Malibu, CAa partial loss of engine power for undetermined reasons.NTSB DFW05CA225Accident · No injuriesData collectionFinal reportAyres S2R-T15 · Taylor, TXThe pilot's misjudgement while landing resulting in an overrun. A factor was fluctuating engine power.NTSB DFW05CA207Accident · No injuriesData collectionFinal reportGrumman G-164 · Knobel, ARThe loss of engine power due to the failure of the #1 cylinder head. A contributing factor was the lack of suitable terrain for the forced landing.NTSB IAD05LA115Accident · No injuriesLimited investigationFinal reportCessna 182B · East Moriches, NYThe improper installation of the right magneto harness to the magneto housing by unidentified maintenance personnel, which resulted in arcing, significant wear, and a subsequent loss of engine power. Factors in the accident were the pilot's failure to attain…NTSB DFW05CA186Accident · Minor injuriesData collectionFinal reportGrumman-Schweizer G-164A · Tallulah, LAThe partial loss of engine power as result of the fracture of the number five-cylinder exhaust valve rocker arm mounting boss. A contributing factor was the lack of suitable terrain for the forced landing.NTSB CHI05LA178Accident · No injuriesLimited investigationFinal reportCessna 210E · La Gygne, KSThe failure of the throttle control cable which resulted from wear followed by fatigue cracking. A factor associated with the accident was the corn crop which the airplane contacted during the forced landing.NTSB SEA05LA138Accident · No injuriesLimited investigationFinal reportBell 47G-2A · Oroville, WAThe failure of the throttle cable housing, which permitted the engine's RPM to decay to the idle position. Contributing factors were the trees and the lack of suitable terrain for a forced landing.NTSB IAD05LA090Accident · Serious injuriesLimited investigationFinal reportAeronca 11CC · Charlotte, VTThe pilot's failure to maintain adequate airspeed, which resulted in an inadvertent stall, and impact with terrain. A factor in the accident was the partial loss of engine power for undetermined reasons.NTSB ATL05LA118Accident · Minor injuriesLimited investigationFinal reportPiper PA-31P · Fort Payne, ALThe loss of engine power due to the failure of the aft clamp connecting the turbocharger compressor outlet to the intercooler ducting which resulted in reduced aircraft performance during takeoff.NTSB ATL05CA102Accident · Minor injuriesData collectionFinal reportPiper PA-28-180 · Luka, MSLoss of engine power due to the total failure of the exhaust valve on the number 2 cylinder, and the pilot's misjudgment of speed/distance/altitude which resulted in a overshoot of the runway and subsequent in-flight collision with trees. A factor was the…NTSB LAX05LA214Accident · No injuriesLimited investigationFinal reportPiper PA-28R-200 · Happy Jack, AZThe fracture/separation of an engine intake valve during cruise flight, which resulted in a partial loss of engine power and a forced landing.NTSB MIA05LA122Accident · Serious injuriesLimited investigationFinal reportHighsmith Fergy FII B · Chipley, FLThe seizing of the rear engine cylinder during takeoff-initial climb, which resulted in a collision with power lines and structural damage to the airplane during the forced landing.NTSB MIA05CA118Accident · No injuriesData collectionFinal reportHerbert O. Kellerman 173 RG · Venice, FLThe owner/pilot mechanic's inadequate maintenance inspection resulting in a partial loss of engine power due to a loose fuel line.NTSB SEA05FA105Accident · 4 fatalField investigationFinal reportMitsubishi MU-2B-25 · Hillsboro, ORThe pilot's failure to obtain minimum controllable airspeed during the takeoff climb, which resulted in a loss of aircraft control when the left engine lost partial power. A fatigue failure to an oil tube, which resulted in the partial power loss to the left…NTSB ATL05LA084Accident · Minor injuriesLimited investigationFinal reportde Havilland DH-82-C · Franklin, GAThe total failure of the left magneto resulting in a partial loss of engine power on initial takeoff climb, forced landing, and in-flight collision with wires and the ground.NTSB LAX05LA173Accident · Minor injuriesLimited investigationFinal reportGreat Lakes 2T-1A-2 · Sonoma, CAa partial loss of engine power, which resulted from the fuel servo leaking and generating an excessively rich fuel/air mixture. A factor was the owner's failure to comply with a service bulletin.NTSB LAX05LA165Accident · No injuriesLimited investigationFinal reportGrumman G-164C · Willows, CAthe loss of engine power due to the fractured piston pin boss on the number 5 cylinder.NTSB LAX05LA152Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Yuba City, CAa partial loss of engine power due to multiple cracks in the number 7 cylinder. The reasons for the cracks were not determinedNTSB LAX05LA141Accident · Serious injuriesLimited investigationFinal reportBailey Lowing Loadster · Bakersfield, CAthe loss of engine power for undetermined reasons.NTSB MIA05LA093Accident · No injuriesLimited investigationFinal reportPiper PA-28-161 · Groveland, FLThe pilot's poorly planned approach during a precautionary landing following partial loss of engine power resulting in a go-around and subsequent in-flight collision with trees. A contributing factor in the accident was the inadequate maintenance by the…NTSB CHI05CA095Accident · No injuriesData collectionFinal reportCessna 172P · Ann Arbor, MIThe failure of the carburetor nozzle resulting in loss of engine power and the unsuitable terrain encountered during the forced landing. A factor was the low altitude.NTSB CHI05LA073Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-140 · Macon, MOThe loss of engine power due to failure of the engine exhaust valve. The pilot's inability to maintain clearance from obstacles, the trees, the residence and the pilot's evasive maneuver were factors in the accident.NTSB ATL05FA048Accident · 1 fatalField investigationFinal reportCessna T210M · Shallotte, NCThe partial loss of engine power for undetermined reasons.NTSB LAX05LA057Accident · No injuriesLimited investigationFinal reportOrr Long-Ez · Yucca Valley, CAa loss of engine power due to ignition system failure due to rain water grounding/shorting of the magneto switches.NTSB SEA05LA032Accident · No injuriesLimited investigationFinal reportAerostar 601 · Hamilton, MTA partial loss of engine power due to the lack of lubrication and subsequent failure of the left engine's right turbocharger for undetermined reasons, and subsequent forced landing after takeoff. A factor was the unsuitable terrain for the forced landing.