NTSB investigations, WA
28 cases where the defining event was Loss of engine power (partial).
Cases per year
| 2008 | 1 |
|---|---|
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 4 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 2 |
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.\"eventStateOrRegion\" = 'WA' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.\"isDefiningEvent\" AND e.\"tier2Number\" = '342')
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."eventStateOrRegion" = 'WA' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '342') 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 ANC26LA098Accident · Serious injuriesClass 3 · LimitedPreliminary reportPitts Model 12 · Lake Stevens, WAOn September 6, 2026, about 1800 Pacific daylight time, an experimental Pitts Model 12 airplane, N491X, was substantially damaged when it was involved in an accident near Lake Stevens, Washington. The pilot sustained serious injuries. The airplane was…NTSB WPR26LA327Accident · No injuriesClass 3 · LimitedPreliminary reportCessna 150E · Siler, WAOn September 1, 2026, at 1220 Pacific daylight time, a Cessna 150E, N3037J, sustained substantial damage when it was involved in an accident near Siler, Washington. The pilot and pilot rated passenger were not injured. The airplane was operated as a Title 14…NTSB WPR25LA259Accident · Serious injuriesClass 3 · LimitedPreliminary reportCzech Aircraft Group Sro Sportcruiser · Puyallup, WAOn August 25, 2025, about 1456 Pacific daylight time, a Czech Aircraft Group SRO Sportcruiser, N538SF was substantially damaged when it was involved in an accident near Puyallup, Washington. The pilot sustained serious injuries, and the passenger was not…NTSB WPR23LA196Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172H · Seattle, WAA stuck exhaust valve that resulted in a partial loss of engine power and a forced water ditching.NTSB WPR21LA351Accident · No injuriesClass 4 · LimitedFinal reportGeorge A. Thiel Just Aircraft Highlander · Monroe, WAThe in-flight malfunction of the throttle control pivot arm, which resulted in a total loss of engine power and the subsequent collision with terrain during the forced landing.NTSB WPR21LA172Accident · No injuriesClass 4 · LimitedFinal reportMichael J Robbins Searey · Friday Harbor, WAPartial loss of engine power due to the detachment of the throttle cable from the carburetor arm, as a result of the pilot’s inadequate maintenance which resulted in an off-airport landing and impact with vegetation.NTSB WPR21LA151Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · Yacolt, WAA partial loss of power caused by carbon build up in the cylinders, which prevented the exhaust valves from seating properly. Contributing to the accident was flying in moderate icing conditions which resulted in reduced aircraft performance and vibrations.NTSB WPR20LA122Accident · No injuriesClass 3 · LimitedFinal reportBuckman Bucks Special · Prescott, WADiminished engine performance due to carburetor icing conditions and multiple mechanical anomalies that did not allow for the airplane to attain adequate airspeed during takeoff from a planted field and failure to maintain clearance from obstructions.…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 GAA19CA126Accident · No injuriesData collectionFinal reportCessna 170 · Selah, WAThe pilot's failure to use carburetor heat while operating in conditions conducive to carburetor icing, which resulted in a partial loss of engine power and a subsequent forced landing and impact with a fence.NTSB WPR17LA096Accident · Minor injuriesLimited investigationFinal reportPiper PA 32-260 · Mukilteo, WAThe improper maintenance of the carburetor, which resulted in a stuck float and a partial loss of engine power during takeoff.NTSB WPR16LA045Accident · No injuriesLimited investigationFinal reportPiper PA18 · Newman Lake, WAA partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.NTSB WPR15LA235Accident · Minor injuriesLimited investigationFinal reportCleveland Allan B Nieuport 11# · Bellingham, WAA partial loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or anomalies that would have precluded normal operation.NTSB WPR15FA181Accident · 1 fatalField investigationFinal reportBeech F35 · Everett, WAThe partial loss of engine power during takeoff due to debris within the fuel servo, which restricted fuel flow throughout the engine fuel system and resulted in a partial loss of engine power.NTSB WPR14LA340Accident · No injuriesLimited investigationFinal reportHughes 269C · Darrington, WAMaintenance personnel’s failure to secure the throttle mount bracket during a recent engine installation, which resulted in the loss of throttle movement and an inability to control engine power.NTSB WPR14LA298Accident · No injuriesLimited investigationFinal reportPiper PA 30 · Othello, WAThe partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR13CA252Accident · Minor injuriesData collectionFinal reportCessna 172A · Eatonville, WAA partial loss of engine power due to carburetor icing and the pilot's failure to maintain adequate airspeed during a go-around, which resulted in a stall.NTSB WPR13LA101Accident · No injuriesLimited investigationFinal reportCessna 150L · Matlock, WAA partial loss of engine power after a descent to a lower altitude due to the student pilot's delayed action in applying carburetor heat while operating in conditions conducive to carburetor icing.NTSB WPR12LA356Accident · Minor injuriesLimited investigationFinal reportRockwell S2R · Royal City, WAThe loss of engine power due to the separation of the No. 2 cylinder exhaust rocker boss housing, which prevented the exhaust valve from opening.NTSB WPR12LA099Accident · No injuriesLimited investigationFinal reportCessna 172M · Cusick, WAA total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB WPR11LA391Accident · No injuriesLimited investigationFinal reportLuscombe 8A · Cowiche, WAA partial loss of engine power during maneuvering flight due to an exhaust valve failure.NTSB WPR11LA340Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Lopez, WAA partial loss of engine power due to a cracked engine case near the rear cylinder.NTSB WPR11LA291Accident · Serious injuriesLimited investigationFinal reportRichard Challenger II · Moses Lake, WAA loss of engine power during the initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB WPR11LA209Accident · No injuriesLimited investigationFinal reportCessna 182B · Colville, WAThe partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.NTSB WPR10LA139Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Colfax, WAA partial loss of engine power due to carburetor ice as a result of the pilot's failure to use carburetor heat.NTSB WPR10LA122Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Pullman, WAA partial loss of engine power during takeoff due to a bird's nest being sucked into the induction air ducting.NTSB WPR09CA186Accident · Minor injuriesData collectionFinal reportAir Creation Clipper 58 · Anacortes, WAThe partial loss of engine power due to the passenger's inadvertent movement of the engine throttle control.NTSB WPR09LA022Accident · 1 fatalLimited investigationFinal reportStinson 108-1 · Concrete, WAThe loss of engine power during initial climb due to the pilot's improper exhaust system maintenance, which resulted in restriction of the carburetor's air intake.