NTSB investigations: Aeronca 7AC
10 cases on aircraft the registry lists as Aeronca 7AC, where the sequence of events included Loss of engine power (total). Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 2009 | 2 |
|---|---|
| 2010 | 1 |
| 2011 | 1 |
| 2015 | 1 |
| 2016 | 2 |
| 2018 | 1 |
| 2025 | 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2110102')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2110102')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND 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" DESCRun 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 CEN25LA186Accident · No injuriesClass 3 · LimitedPreliminary reportAeronca 7AC · Westphalia, MIOn May 24, 2025, at 1300 eastern daylight time, an Aeronca 7AC, N2659E, was substantially damaged when it was involved in an accident near Westphalia, Michigan. The commercial pilot was not injured. The airplane was operated under Title 14 Code of Federal…NTSB ERA25LA161Accident · Minor injuriesClass 4 · LimitedFinal reportAeronca 7AC · Martinsville, VAThe pilot inadvertently turned off the fuel selector valve on takeoff which resulted in a loss of engine power.NTSB ERA18FA230Accident · 1 fatalField investigationFinal reportAeronca 7AC · Hanson, MAA loss of engine power due to carburetor icing, the pilot's decision to turn back to the runway shortly after takeoff, and his failure to maintain airspeed during the turn, which resulted in an exceedance of the airplane's critical angle of attack, and…NTSB CEN16LA218Accident · No injuriesLimited investigationFinal reportAeronca 7AC · East St. Louis, ILA total loss of engine power due to fracture of the piston pin, which led to fatigue cracking and eventual fracture of the adjacent connecting rod.NTSB ERA16LA200Accident · Minor injuriesClass 3 · LimitedFinal reportAeronca 7AC · Toughkenamon, PAThe student pilot’s inadvertent actuation of the fuel shutoff valve, which led to a total loss of engine power, forced landing, and impact with a hangar. Contributing to the outcome was maintenance personnel’s inadequate inspection of the fuel shutoff system…NTSB ERA15LA183Accident · No injuriesLimited investigationFinal reportAeronca 7AC · Spring City, TNThe pilot's failure to properly apply carburetor heat in conditions conducive to carburetor icing, which resulted the accumulation of carburetor ice and the subsequent total loss of engine power.NTSB WPR11LA131Accident · No injuriesLimited investigationFinal reportAeronca 7AC · Novato, CAThe pilot's use of a non-vented fuel cap, which resulted in a total loss of engine power due to fuel starvation.NTSB ERA10LA314Accident · Minor injuriesLimited investigationFinal reportAeronca 7AC · Sandersville, GAA total loss of engine power for undetermined reasons.NTSB ERA09LA397Accident · No injuriesLimited investigationFinal reportAeronca 7AC · Auburn, MEA loss of engine power due to fuel contamination. Contributing to the accident was the inadequate maintenance inspection of the airplane and engine's fuel system.NTSB WPR09CA103Accident · No injuriesData collectionFinal reportAeronca 7BC · Half Moon Bay, CAA total loss of engine power due to fuel exhaustion as a result of the pilot's failure to perform an accurate visual fuel quantity check prior to initiating the flight.