Final NTSB investigations
1,527 cases where the sequence of events included Loss of engine power (partial).
Cases per year
| 2008 | 93 |
|---|---|
| 2009 | 115 |
| 2010 | 101 |
| 2011 | 116 |
| 2012 | 118 |
| 2013 | 78 |
| 2014 | 107 |
| 2015 | 109 |
| 2016 | 102 |
| 2017 | 90 |
| 2018 | 89 |
| 2019 | 85 |
| 2020 | 68 |
| 2021 | 83 |
| 2022 | 64 |
| 2023 | 48 |
| 2024 | 45 |
| 2025 | 13 |
| 2026 | 3 |
Where
Open the mapLatest cases
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\" = '342' 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" = '342' 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 ERA26LA348Accident · No injuriesClass 4 · LimitedFinal reportHopwood Joseph R Zodiac · Stockton, ALA partial loss of engine power due to a missing exhaust clamp bolt and subsequent oil loss due to a damaged engine oil return line, which resulted in the pilot’s decision to perform an off-airport landing.NTSB ERA26LA314Accident · Serious injuriesClass 4 · LimitedFinal reportCessna 421 · Fulton, KYThe misfuelling of the airplane by the refueler. Contributing to the accident was the pilot’s failure to verify that the airplane had been properly fueled prior to departing on the accident flight.NTSB WPR26LA193Accident · No injuriesClass 4 · LimitedFinal reportBellanca 7ACA · Pacific City, ORThe pilot’s loss of directional control during a precautionary landing following a partial reduction in engine rpm.NTSB WPR26LA056Accident · No injuriesClass 4 · LimitedFinal reportRotorway Exec · Lake Havasu City, AZThe pilot’s improper securing hardware installation, which resulted in a loss of throttle control and a loss of engine power.NTSB DCA26FA019Accident · No injuriesClass 4 · FieldFinal reportAir Vev AIR ZERO2 · Indiantown, FLA cascading shutoff of multiple aft motors due to a sudden increase in motor loads during maneuvering, resulting in a loss of control.NTSB ERA26LA014Accident · No injuriesClass 4 · LimitedFinal reportCessna 172 · North Lauderdale, FLA total loss of engine power due to a fuel delivery system leak, which allowed air to enter the fuel system. The source of the leak could not be determined based on the available evidence.NTSB ERA25LA266Accident · Minor injuriesClass 4 · LimitedFinal reportCessna T337G · Pembroke Pines, FLThe pilot’s inadequate preflight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power to one of the airplane’s two engines. Contributing to the outcome was the pilot’s loading of the airplane beyond its maximum gross…NTSB ERA25LA238Accident · No injuriesClass 3 · LimitedFinal reportCessna 310 · Fayetteville, TNThe pilot’s decision to operate the airplane with known discrepancies.NTSB ERA25LA235Accident · No injuriesClass 3 · LimitedFinal reportCessna R182 · Milton, FLSeparation of the throttle cable sleeve during takeoff, which resulted an uncommanded engine power reduction and the pilot’s inability to control the engine throttle, and resulted in a forced landing.NTSB CEN25LA168Accident · No injuriesClass 3 · LimitedFinal reportCessna 172N · Longmont, COThe disconnected throttle control that resulted in a loss of engine power due to improper maintenance.NTSB ERA25LA188Accident · No injuriesClass 3 · LimitedFinal reportCessna 172RG · Louisburg, NCMaintenance personnel’s failure to identify and remediate water contamination of the airplane’s fuel system, which resulted in a partial loss of engine power during initial climb.NTSB DCA25LA185Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737 · Houston, TXSerious Injury to a flight attendant sustained during an evacuation.NTSB CEN25LA107Accident · No injuriesClass 3 · LimitedFinal reportSchweizer 269C-1 · Alvord, TXA total loss of engine power for a reason that could not be determined.NTSB CEN25LA101Accident · No injuriesClass 4 · LimitedFinal reportCessna 177A · Farlinville, KSA loss of engine power that resulted from fuel contamination when it was treated with a 70% isopropyl alcohol solution (antiseptic) that contained water. Contributing to the accident were vague fuel treatment instructions provided by the operator.NTSB ERA25LA122Accident · No injuriesClass 4 · LimitedFinal reportAllyn Kaste Rans S-19 (KIT) · Doylestown, PAThe pilot’s inadequate maintenance and preflight inspection.NTSB DCA25LA084Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 757 · Atlanta, GASubstantial injury to a passenger sustained during evacuation.NTSB CEN25LA054Accident · No injuriesClass 3 · LimitedFinal reportAmerican AA-1B · Brenham, TXA partial loss of engine power due to an obstructed induction system from a mud dauber nest.NTSB ERA25LA052Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172S · Chattanooga, TNA partial loss of engine power due to a fouled spark plug in engine’s the No. 4 cylinder. Contributing was the flight instructor’s failure to maintain aircraft control during an attempted go-around following an unsuccessful landing approach in IMC, which…NTSB CEN25LA041Accident · No injuriesClass 4 · LimitedFinal reportRotorway Exec 162 F · Blaine, MNA loss of engine power that resulted in a hard landing.NTSB ERA25LA041Accident · Minor injuriesClass 3 · LimitedFinal reportAnderson Kitfox 4 · New Castle, PAA partial loss of engine power due to a split fuel line that resulted in a fuel leak and reduced fuel supply to the aft carburetor.NTSB CEN25LA025Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1 · Denton, TXThe partial loss of engine power during the initial climb and the pilot’s failure to maintain directional control during the forced landing with a tailwind.NTSB CEN25LA021Accident · No injuriesClass 3 · LimitedFinal reportMooney M20K · Elizabeth, LAThe pilot’s failure to set the engine fuel mixture to the required setting, which resulted in reduced engine power during a go-around and subsequent impact with trees. Contributing to the accident, the failure of the mechanic to perform a current fuel…NTSB ERA25LA011Accident · No injuriesClass 3 · LimitedFinal reportSaint Glasair II SFT · Forest, VAThe installation of a non-failsafe coupler that resulted in the separation of the throttle cable from the throttle arm and a subsequent partial loss of engine power.NTSB CEN25FA006Accident · 1 fatalClass 3 · FieldFinal reportBeech C99 · Norfolk, NEThe pilot’s failure to maintain adequate airspeed following a partial loss of engine power during takeoff, which resulted in a loss of airplane control. Contributing to the accident was the fatigue failure of the compressor turbine fan disk blade.NTSB ERA24LA392Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA28 · LaGrange, GAImproper manufacture of a cylinder exhaust valve guide by the engine manufacturer, which resulted in a stuck exhaust valve and a partial loss of engine power during initial climb.NTSB ANC24FA092Accident · 1 fatalClass 3 · FieldFinal reportJon Bergstedt JP Flyer · Wasilla, AKThe installation of an improperly sized fuel line that did not allow for adequate fuel flow to the engine, resulting in a partial loss of engine power and collision with trees.NTSB CEN24LA350Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172 · Englewood, COA partial loss of engine power due to fuel-oil contamination of the fuel injection servo.NTSB ERA24LA375Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-802 · Hickory Valley, TNA partial loss of engine power due to a leak in the fuel control unit bellows, which resulted in the fuel valve moving to minimum fuel flow.NTSB CEN24LA341Accident · No injuriesClass 3 · LimitedFinal reportTaylorcraft BC12-D · Trojan, SDThe partial loss of engine power due to a loose magneto and subsequent impact with terrain.NTSB WPR24FA291Accident · 1 fatalClass 3 · FieldFinal reportAmerican Champion 8GCBC · Meeteetse, WYThe pilot’s decision to continue the flight over rising terrain at a low altitude in a high-elevation, high-density-altitude environment.NTSB CEN24LA313Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164 · Dyess, ARThe improper overhaul of the carburetor and the malfunction of left magneto which resulted in a partial loss of engine power.NTSB CEN24LA301Accident · Minor injuriesClass 3 · LimitedFinal reportTailwind W10 · West Livingston, TXA partial loss of engine power due to carburetor ice.NTSB ERA24LA333Accident · No injuriesClass 3 · LimitedFinal reportCirrus Design SR20 · Egg Harbor City, NJA partial loss of engine power due to the fatigue failure of the alternate air valve, which separated and partially obstructed the engine’s induction system.NTSB ERA24FA318Accident · 2 fatalClass 3 · FieldFinal reportBeech A36 · Ronkonkoma, NYA loss of engine power during initial climb for undetermined reasons. Contributing to the outcome was the pilot's failure to maintain control of the airplane following the loss of engine power and his decision to perform an intersection takeoff which, reduced…NTSB CEN24LA269Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-36-375 · Avoca, NEA partial loss of engine power due to the loose left magneto which resulted in erratic engine timing.NTSB ERA24FA301Accident · 1 fatalClass 3 · FieldFinal reportCessna 402B · Aguadilla, PRThe pilot’s decision to operate the airplane with known maintenance discrepancies, which resulted in a total loss of right engine power. Contributing to the outcome was the pilot’s failure to maintain airspeed while returning to the airport with a single…NTSB ERA24LA299Accident · Minor injuriesClass 3 · LimitedFinal reportBellanca 8GCBC · Frankford, DEA partial loss of engine power resulting from cylinder detonation and a cracked spark plug, which resulted in a forced landing and impact with terrain.NTSB ANC24LA057Accident · No injuriesClass 4 · LimitedFinal reportDehavilland-Kenmore DHC-2 · Juneau, AKA partial loss of engine power during initial climb due to a cracked cylinder.NTSB CEN24LA236Accident · No injuriesClass 3 · LimitedFinal reportCirrus Design SR22T · Boerne, TXMaintenance personnel’s inadequate adjustment of fuel flow, which resulted in an excessively rich mixture, a rough-running engine, and a subsequent partial loss of engine power.NTSB ERA24LA271Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Hernando, FLThe improper installation of a cylinder rocker stud by maintenance personnel, which resulted in a partial loss of engine power and subsequent forced landing.NTSB CEN24LA239Accident · No injuriesClass 3 · LimitedFinal reportThrush S2R · Hebron, NDForeign object debris in the Negative Torque Sensing (NTS) system check valve, which impeded the flow of oil to the NTS system and the propeller governor (PG) reset piston, resulting in a total loss of engine power and an off-airport forced landing.…NTSB CEN24FA228Accident · 2 fatalClass 3 · FieldFinal reportCessna 421 · Steamboat Springs, COThe pilot’s failure to maintain sufficient airspeed following a loss of engine power, which resulted in an inadvertent aerodynamic stall/spin at low altitude.NTSB WPR24LA198Accident · Minor injuriesClass 3 · LimitedFinal reportWarren B Cox COX Breezy · Albuquerque, NMThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for landing following a partial loss of engine power after takeoff, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was maintenance…NTSB ANC24LA045Accident · No injuriesClass 3 · LimitedFinal reportCessna 206 · King Salmon, AKA partial loss of engine power due to detonation/preignition of the No. 1 cylinder for reasons that could not be determined.NTSB ERA24LA239Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 150 · San Juan, PRA partial loss of engine power due to the failure of the No. 2 cylinder rocker shaft bosses from fatigue cracking.NTSB WPR24LA178Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-28-180 · Nephi, UTThe pilot’s incorrect movement of the fuel selector valve to an off or restricted position, which resulted in fuel starvation and a loss of engine power.NTSB CEN24LA200Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA28 · Taylor, TXA partial loss of engine power due to an incorrect carburetor air inlet hose, which led to a reduction in air flow to the engine.NTSB WPR24LA159Accident · No injuriesClass 3 · LimitedFinal reportNanchang China CJ-6A · Peoria, AZThe partial loss of engine power during cruise flight due to the improper installation of the master connecting rod main bushing set screws, which backed off and allowed the main bushing to shift, resulting in scoring damage on the crankshaft that led to the…NTSB WPR24LA148Accident · No injuriesClass 3 · LimitedFinal reportKjelsrud Gary Kitfox · Powell, WYThe pilot’s adjustment of the carburetor to an incorrect setting, which resulted in partial loss of engine power during takeoff.NTSB ERA24LA211Accident · No injuriesClass 3 · LimitedFinal reportPiper PA32 · Apopka, FLA partial loss of engine power due to sticking exhaust valves. Contributing to the accident was maintenance personnel’s failure to use available engine data while troubleshooting a known engine issue and maintenance personnel’s failure to comply with…