NTSB investigations, NH
9 cases where the sequence of events included Loss of engine power (total).
Cases per year
| 2008 | 1 |
|---|---|
| 2009 | 2 |
| 2013 | 1 |
| 2015 | 1 |
| 2020 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
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\" = 'NH' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '341' 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."eventStateOrRegion" = 'NH' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '341' 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 ERA26LA231Accident · Serious injuriesClass 3 · LimitedPreliminary reportOlson/Williams Sonex · Jaffrey, NHOn June 5, 2026, at 1100 eastern daylight time, an experimental amateur-built Sonex airplane, N28YD, was substantially damaged when it was involved in an accident near Jaffrey, New Hampshire. The private pilot was seriously injured. The flight was conducted…NTSB ERA25LA265Accident · Serious injuriesClass 3 · LimitedPreliminary reportMoyes Liteflite PTY C Dragonfly · Charlestown, NHOn July 13, 2025, about 1915 eastern daylight time, a Moyes Liteflite Model C Dragonfly airplane, N4010E, was substantially damaged when it was involved in an accident near Charleston, New Hampshire. The pilot was seriously injured. The airplane was operated…NTSB ERA23LA360Accident · No injuriesClass 3 · LimitedFinal reportBrown Benjamin C Challenger II · Moultonborough, NHA loss of engine power due to a loss of compression in one of the engine’s two cylinders.NTSB ERA21LA008Accident · No injuriesClass 3 · LimitedFinal reportExperimental Quad City Challenger II · Northfield, NHA total loss of engine power due to oil starvation of the No. 1 cylinder. Contributing to the accident was the pinched No. 1 cylinder oil injection line.NTSB ERA15FA241Accident · Serious injuriesField investigationFinal reportPiper PA-22 · Laconia, NHA total loss of engine power for reasons that could not be determined because of insufficient evidence found during postaccident examination of the airframe and engine.NTSB ERA13LA327Accident · Minor injuriesLimited investigationFinal reportUnivair 108-1 · Tuftonboro, NHMaintenance personnel’s failure to remove circumferential gouges in the aft radius of the R2 rod journal on the crankshaft during its last engine overhaul, which resulted in the fatigue failure of the crankshaft and a subsequent total loss of engine power.NTSB ERA09LA511Accident · Minor injuriesLimited investigationFinal reportAir Creation 582SL · Strafford, NHA loss of engine power for undetermined reasons.NTSB ERA09FA343Accident · 1 fatalField investigationFinal reportCessna 177 RG · Gilford, NHA loss of engine power due to oil exhaustion from the fracture of the nipple for the engine oil cooler return line. Contributing to the accident was the mechanic's signoff and release of the airplane without performing the required engine run-up following an…NTSB ERA09CA014Accident · Serious injuriesData collectionFinal reportPiper J3C-50 · Epping, NHThe pilot's improper preflight inspection and his decision to fly an unairworthy airplane.