NTSB investigations, TN
23 cases where the defining event was Loss of engine power (partial).
Cases per year
| 2008 | 2 |
|---|---|
| 2009 | 3 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 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.\"eventStateOrRegion\" = 'TN' 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" = 'TN' 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 ERA25LA346Accident · Minor injuriesClass 3 · LimitedPreliminary reportPiper PA-24-180 · Ashland City, TNOn September 5, 2025, at 1645 central daylight time, N5759P, a Piper Cherokee PA-24-180, sustained substantial damage when it was involved in an accident near Ashland City, Tennessee. The private pilot sustained minor injuries. The flight was conducted as a…NTSB ERA25LA238Accident · No injuriesClass 3 · LimitedFinal reportCessna 310 · Fayetteville, TNThe pilot’s decision to operate the airplane with known discrepancies.NTSB ERA25LA222Accident · Serious injuriesClass 3 · LimitedPreliminary reportDehavilland DHC-6 Twin Otter · Tullahoma, TNOn June 8, 2025, about 1220 central daylight time, a DeHavilland DHC-6 Twin Otter, N166DH, was involved in an accident near Tullahoma, Tennessee. The commercial pilot and five passengers were seriously injured, and 15 passengers were not injured. The flight…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 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 ERA23LA372Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 182P · Prospect, TNA loss of engine power due to the fatigue failure of the No. 6 cylinder exhaust valve rocker boss.NTSB ERA23LA264Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA28 · Lancaster, TNThe fatigue failure of an exhaust valve, resulting in a partial loss of engine power.NTSB ERA22LA139Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 152 · Madisonville, TNA partial loss of engine power for undetermined reasons.NTSB ERA21FA263Accident · 1 fatalClass 3 · FieldFinal reportCirrus SR22 · Mercer, TNA partial loss of engine power due to foreign object debris contamination of the left turbocharger wastegate. Contributing to the accident was the pilot’s failure to divert to the nearest airport.NTSB ERA17LA019Accident · No injuriesLimited investigationFinal reportCessna 182 · Toone, TNA stuck No. 3 cylinder exhaust valve, which resulted in failure of the cylinder's valvetrain components, breach of the cylinder's rocker box cover, and partial loss of engine power due to oil starvation.NTSB ERA16LA202Accident · Minor injuriesLimited investigationFinal reportBell 407 · Mountain City, TNAn incorrect and unapproved repair of the engine compressor diffuser performed by a machinist at a repair facility, which resulted in failure of the compressor diffuser aft plate and a partial loss of engine power.NTSB ERA16LA019Accident · No injuriesLimited investigationFinal reportBeech 23 · Humboldt, TNA partial loss of engine power due to low No. 2 cylinder compression and an inoperative right magneto.NTSB ERA15FA353Accident · 1 fatalField investigationFinal reportAero Vodochody L39 · Oneida, TNThe pilot's failure to maintain airplane control following a partial loss of engine power during initial climb. The reason for the partial loss of engine power could not be determined due to extensive postimpact damage.NTSB ERA14LA281Accident · Serious injuriesLimited investigationFinal reportBelew Marshall D II Steen Skybolt · Chapmansboro, TNThe pilot's failure to maintain airspeed while performing an emergency landing, which led to the airplane exceeding its critical angle-of-attack and experiencing a subsequent aerodynamic stall. Contributing to the accident was a partial loss of engine power…NTSB ERA13LA214Accident · Serious injuriesLimited investigationFinal reportBeech 35-C33A · Knoxville, TNThe loss of engine power during takeoff for a reasons that could not be determined because postaccident examinations and testing revealed no anomalies that would have precluded normal operation.NTSB ERA12LA318Accident · Minor injuriesLimited investigationFinal reportTemco GC-1B · Dayton, TNA partial loss of engine power during low-altitude maneuvers for reasons that could not be determined because the engine examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation; however the carburetor was…NTSB ERA12LA226Accident · Serious injuriesLimited investigationFinal reportMichael S/Michael K Safari · Middle Valley, TNA partial loss of engine power for reasons that could not be determined due to the postaccident condition of the airframe and engine.NTSB ERA11LA149Accident · No injuriesLimited investigationFinal reportCessna 150H · Jonesborough, TNA partial loss of engine power during initial climb for undetermined reasons.NTSB ERA09LA498Accident · Serious injuriesLimited investigationFinal reportHahn R-W22 Tiger Moth Rep · Symrna, TNA loss of engine power for undetermined reasons.NTSB ERA09LA407Accident · Minor injuriesLimited investigationFinal reportCessna 120 · Morristown, TNThe partial loss of engine power for undetermined reasons.NTSB ERA09LA239Accident · Serious injuriesLimited investigationFinal reportDiamond DA20 · Shelbyville, TNA partial loss of engine power for an undetermined reason.NTSB ERA09FA083Accident · Minor injuriesField investigationFinal reportMitsubishi MU-2B-60 · Millington, TNThe pilot’s improper configuration of the airplane following an engine shutdown, which resulted in a low-altitude, unstabilized approach. Contributing to the accident was a loss of engine power for undetermined reasons.NTSB NYC08LA185Accident · Minor injuriesLimited investigationFinal reportGulfstream American AA-5A · Lewisburg, TNA partial loss of engine power for an undetermined reason during the initial climb, and the pilot's failure to maintain adequate airspeed while attempting to return to the airport resulting in an aerodynamic stall.