NTSB investigations: Aeronca 11AC, 1999
6 cases on aircraft the registry lists as Aeronca 11AC. 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
| 1964 | 18 |
|---|---|
| 1965 | 10 |
| 1966 | 16 |
| 1967 | 25 |
| 1968 | 13 |
| 1969 | 8 |
| 1970 | 20 |
| 1971 | 8 |
| 1972 | 6 |
| 1973 | 4 |
| 1974 | 10 |
| 1975 | 10 |
| 1976 | 10 |
| 1977 | 3 |
| 1978 | 6 |
| 1979 | 7 |
| 1980 | 1 |
| 1981 | 3 |
| 1982 | 5 |
| 1984 | 2 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 4 |
| 1988 | 6 |
| 1989 | 3 |
| 1990 | 1 |
| 1991 | 5 |
| 1992 | 1 |
| 1993 | 2 |
| 1994 | 6 |
| 1995 | 2 |
| 1996 | 4 |
| 1998 | 1 |
| 1999 | 6 |
| 2000 | 4 |
| 2001 | 3 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2009 | 2 |
| 2010 | 3 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 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 year(c.\"eventDate\") = 1999
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0191102'))
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 year(c."eventDate") = 1999
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0191102'))
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 LAX00LA046Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Sedona, AZThe pilot's inadequate compensation for the crosswind conditions and subsequent failure to maintain directional control of the airplane.NTSB FTW99LA267Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Van Horn, TXA restriction within the auxiliary fuel supply system and the rough terrain during the subsequent precautionary landing resulting on main gear collapse.NTSB DEN99LA161Accident · No injuriesLimited investigationFinal reportAeronca 11BC · Heber City, UTThe pilot's failure to maintain aircraft control during takeoff roll. Factors were the gusting crosswind conditions, and the airport sign.NTSB CHI99LA318Accident · No injuriesLimited investigationFinal reportAeronca 11BC · Watervliet, MIthe pilot not maintaining aircraft control during takeoff, and the pilot not correcting for the porpoise.NTSB FTW99LA227Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Rockwall, TXThe mechanic's improper machining of the crankshaft during a major overhaul, which resulted in a fatigue crack and subsequent failure of the crankshaft. A factor was the lack of suitable terrain for the forced landing.NTSB IAD99LA055Accident · No injuriesLimited investigationFinal reportAeronca 11BC · Millbrook, NYwas the pilot's inadequate compensation for winds and his failure to maintain directional control.